{"title":"Ground Zero Daily Driver Bass","description":"\u003cp\u003eGround Zero subwoofers selected for everyday systems that need strong bass without extreme power demands. A good starting point for daily-driven cars, trucks, SUVs, and first serious bass upgrades.\u003c\/p\u003e","products":[{"product_id":"gzrw-8xspl-20-cm-8-high-quality-spl-subwoofer-dual-2-ohm-coils","title":"Ground Zero Radioactive GZRW 8XSPL 8\" 500W RMS Dual 2-Ohm SPL Car Subwoofer (1000W Max)","description":"\u003cp\u003eThe \u003cstrong\u003eGround Zero Audio Radioactive GZRW 8XSPL\u003c\/strong\u003e (MPN: \u003cstrong\u003eGZRW 8XSPL\u003c\/strong\u003e \/ \u003cstrong\u003eGZRW8XSPL\u003c\/strong\u003e) is a compact, high-output 8-inch (20 cm \/ 200 mm) daily SPL car and truck subwoofer engineered in Germany for hard-hitting bass in tight spaces. Rated at \u003cstrong\u003e500 Watts RMS \/ 1,000 Watts SPL\u003c\/strong\u003e with \u003cstrong\u003eDual 2-Ohm (2x 2-Ohm)\u003c\/strong\u003e voice coils, a \u003cstrong\u003e50 mm (2″) copper voice coil\u003c\/strong\u003e, and \u003cstrong\u003e22 mm (0.866″) Xmax\u003c\/strong\u003e, the Radioactive GZRW 8XSPL delivers impressive low-end punch and 84.6 dB sensitivity in custom truck, trunk, and powersports enclosures.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Acoustic Engineering\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e500W RMS \/ 1,000W SPL Power Handling:\u003c\/strong\u003e Heavy-duty 50 mm (2″) pure copper voice coil handles demanding daily SPL loads without thermal compression.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e22 mm (0.866″) Long-Stroke Excursion:\u003c\/strong\u003e High-roll long-stroke compound surround and Polycot spider provide controlled cone travel and tight mid-bass and sub-bass response.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReinforced Paper Cone \u0026amp; 3D IMPP Dust Cap:\u003c\/strong\u003e Non-pressed reinforced paper cone paired with a rigid 3D-embossed IMPP dust cap and resonance-free steel basket.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKlippel® Laser-Optimized Motor:\u003c\/strong\u003e Tuned on Ground Zero’s Klippel® distortion analyzer for linear magnetic symmetry across the full stroke.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual 2-Ohm (D2) Wiring Flexibility:\u003c\/strong\u003e Wire a single GZRW 8XSPL in parallel to a \u003cstrong\u003e1-Ohm final load\u003c\/strong\u003e (or 4-Ohm series), or run a pair of 8″ subwoofers at a \u003cstrong\u003e2-Ohm final impedance\u003c\/strong\u003e (or a quad-8″ under-seat truck box at 1 Ohm).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRecommended Amplifier \u0026amp; Enclosure Pairing\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmplifier Match (400W–1,000W RMS):\u003c\/strong\u003e Pair a single GZRW 8XSPL wired to 1 Ohm (or multiple 8″ woofers) with a high-efficiency monoblock from our \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-amplifiers\"\u003eGround Zero Amplifiers\u003c\/a\u003e collection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnclosure Fitment Specs:\u003c\/strong\u003e Ideal for vented\/ported single, dual, or quad 8-inch truck and trunk enclosures (\u003cstrong\u003e5.24″ \/ 133 mm mounting depth\u003c\/strong\u003e; \u003cstrong\u003e45.8 Hz Fs\u003c\/strong\u003e).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExplore More Ground Zero Subwoofers:\u003c\/strong\u003e Browse all \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-subwoofers\"\u003eGround Zero Subwoofers\u003c\/a\u003e in our catalog.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications \u0026amp; Thiele-Small Parameters\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eGround Zero Radioactive GZRW 8XSPL\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBrand \/ Series\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGround Zero Audio — Radioactive Series\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eModel \/ MPN\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGZRW 8XSPL \/ GZRW8XSPL\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e8″ (20 cm \/ 200 mm) High-Output SPL Car Subwoofer\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePower Handling (RMS \/ SPL)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e500 Watts RMS \/ 1,000 Watts SPL\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Impedance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eDual 2-Ohm (2x 2 Ohms — 1-Ohm Parallel \/ 4-Ohm Series)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Diameter \u0026amp; Winding\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e2″ (50 mm) Copper Voice Coil\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCone, Spider \u0026amp; Basket\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eReinforced Paper Cone \/ Polycot Spider \/ Resonance-Free Steel Basket\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMax Excursion (Xmax)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e22 mm \/ 0.866″\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSensitivity (Efficiency)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e84.6 dB\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eResonance Frequency (Fs)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e45.8 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMounting Depth\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e5.24″ (133 mm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eAuthorized US Ground Zero Audio Dealer \u0026amp; Custom Installation in Toledo, OH:\u003c\/strong\u003e Ships fast from \u003cstrong\u003eTDS Car Audio\u003c\/strong\u003e (6540 Central Ave, Suite O, Toledo, OH 43617). Custom multi-8″ truck enclosures and expert installation available across Toledo, Maumee, Perrysburg, Sylvania, Holland, Bowling Green, and Southeast Michigan. Call \u003cstrong\u003e(419) 376-6140\u003c\/strong\u003e for support.\u003c\/p\u003e","brand":"Ground Zero Audio","offers":[{"title":"Default Title","offer_id":41916562374818,"sku":"GZRW8XSPL","price":239.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0455\/3526\/4930\/products\/GZRW-8XSPL_Side.webp?v=1647787701"},{"product_id":"ground-zero-audio-gzrw-25-d2-25-cm-10-high-quality-subwoofer","title":"Ground Zero Radioactive GZRW 25-D2 10\" 600W RMS Dual 2-Ohm Car Subwoofer (900W Max)","description":"\u003cp\u003eThe \u003cstrong\u003eGround Zero Audio Radioactive GZRW 25-D2\u003c\/strong\u003e (MPN: \u003cstrong\u003eGZRW 25-D2\u003c\/strong\u003e \/ \u003cstrong\u003eGZRW25-D2\u003c\/strong\u003e) is a long-stroke 10-inch (25 cm \/ 250 mm) street and daily SPL car subwoofer engineered in Germany for deep, musical low-end extension. Rated at \u003cstrong\u003e600 Watts RMS \/ 900 Watts Max SPL\u003c\/strong\u003e (300W–900W recommended amplifier power) with \u003cstrong\u003eDual 2-Ohm (2x 2-Ohm)\u003c\/strong\u003e voice coils, a massive \u003cstrong\u003e50 mm (1.97″) Xmax\u003c\/strong\u003e, and an ultra-low \u003cstrong\u003e26.3 Hz resonance frequency (Fs)\u003c\/strong\u003e, the Radioactive GZRW 25-D2 digs deeper than standard 10-inch subwoofers.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Acoustic Engineering\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtreme 50 mm (1.97″) Long-Stroke Excursion:\u003c\/strong\u003e High-roll compound surround paired with a durable Polycot spider and Klippel®-optimized motor delivers nearly 2 inches of cone travel for deep sub-bass authority.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Low 26.3 Hz Fs for Deep Street Bass:\u003c\/strong\u003e Tuned specifically for warm, low-reaching street bass that plays effortlessly into the mid-20 Hz range.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e600W RMS \/ 900W SPL Power Handling:\u003c\/strong\u003e Driven by a 63 mm (2.5″) pure copper voice coil, non-pressed reinforced paper cone, 3D-embossed IMPP dust cap, and resonance-free steel basket.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual 2-Ohm (D2) Wiring Flexibility:\u003c\/strong\u003e Wire a single GZRW 25-D2 in parallel to a \u003cstrong\u003e1-Ohm final load\u003c\/strong\u003e (or 4-Ohm series), or run a pair of 10″ subwoofers at a \u003cstrong\u003e2-Ohm or 0.5-Ohm final impedance\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRecommended Amplifier \u0026amp; Enclosure Pairing\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmplifier Match (300W–900W RMS @ 1-Ohm):\u003c\/strong\u003e Pair a single GZRW 25-D2 wired to 1 Ohm with a compact monoblock amplifier from our \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-amplifiers\"\u003eGround Zero Amplifiers\u003c\/a\u003e collection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnclosure Fitment Specs:\u003c\/strong\u003e Ideal for sealed or vented\/ported 10-inch car and truck enclosures (\u003cstrong\u003e8.98″ \/ 228 mm cutout diameter\u003c\/strong\u003e; \u003cstrong\u003e5.94″ \/ 151 mm mounting depth\u003c\/strong\u003e; \u003cstrong\u003e1.00 cu. ft. \/ 28.3 L Vas\u003c\/strong\u003e).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExplore More Ground Zero Subwoofers:\u003c\/strong\u003e Compare across our full \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-subwoofers\"\u003eGround Zero Subwoofers\u003c\/a\u003e lineup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications \u0026amp; Thiele-Small Parameters\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eGround Zero Radioactive GZRW 25-D2\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBrand \/ Series\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGround Zero Audio — Radioactive Series\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eModel \/ MPN\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGZRW 25-D2 \/ GZRW25-D2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e10″ (25 cm \/ 250 mm) Long-Stroke Street \u0026amp; SPL Car Subwoofer\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePower Handling (RMS \/ SPL)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e600 Watts RMS \/ 900 Watts Max SPL\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eRecommended Amplifier Power\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e300 – 900 Watts RMS\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Impedance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eDual 2-Ohm (2x 2 Ohms — 1-Ohm Parallel \/ 4-Ohm Series)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Diameter \u0026amp; Winding\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e2.5″ (63 mm) Copper Voice Coil\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCone, Spider \u0026amp; Basket\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eReinforced Paper Cone \/ Polycot Spider \/ Resonance-Free Steel Basket\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMax Excursion (Xmax)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e50 mm \/ 1.97″\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSensitivity (Efficiency)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e82 dB\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eResonance Frequency (Fs)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e26.3 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eTotal Q Factor (Qts)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.54\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEquivalent Air Volume (Vas)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e28.3 L \/ 1.00 cu. ft.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMounting Cutout Diameter\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e8.98″ (228 mm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMounting Depth\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e5.94″ (151 mm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eAuthorized US Ground Zero Audio Dealer \u0026amp; Custom Installation in Toledo, OH:\u003c\/strong\u003e Ships fast from \u003cstrong\u003eTDS Car Audio\u003c\/strong\u003e (6540 Central Ave, Suite O, Toledo, OH 43617). Custom subwoofer enclosures and professional installation available across Toledo, Maumee, Perrysburg, Sylvania, Holland, Bowling Green, and Southeast Michigan. Call \u003cstrong\u003e(419) 376-6140\u003c\/strong\u003e for support.\u003c\/p\u003e","brand":"Ground Zero Audio","offers":[{"title":"Default Title","offer_id":43024309518498,"sku":"GZRW25-D2","price":269.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0455\/3526\/4930\/products\/GZRW-25-D2_Side.png?v=1675196485"},{"product_id":"ground-zero-audio-radioactive-gzrw-12xspl-30-cm-12-high-quality-spl-subwoofer","title":"Ground Zero Radioactive GZRW 12XSPL 12\" 1000W RMS Dual 2-Ohm SPL Car Subwoofer (1500W Max)","description":"\u003cp\u003eThe \u003cstrong\u003eGround Zero Audio Radioactive GZRW 12XSPL\u003c\/strong\u003e (MPN: \u003cstrong\u003eGZRW 12XSPL\u003c\/strong\u003e \/ \u003cstrong\u003eGZRW12XSPL\u003c\/strong\u003e) is a high-excursion 12-inch (30 cm \/ 300 mm) daily SPL and competition car subwoofer engineered in Germany for deep, punchy bass output. Rated at \u003cstrong\u003e1,000 Watts RMS \/ 1,500 Watts SPL\u003c\/strong\u003e (800W–1,500W recommended amplifier power) with \u003cstrong\u003eDual 2-Ohm (2x 2-Ohm)\u003c\/strong\u003e voice coils, a massive \u003cstrong\u003e45 mm (1.77″) Xmax\u003c\/strong\u003e, and a \u003cstrong\u003e75 mm (3″) copper voice coil\u003c\/strong\u003e, the Radioactive GZRW 12XSPL delivers true 3-inch-coil thermal durability and long-stroke excursion in a versatile 12-inch footprint.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Acoustic Engineering\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1,000W RMS \/ 1,500W SPL Power Handling:\u003c\/strong\u003e Oversized 75 mm (3″) pure copper voice coil handles 800W to 1,500W of daily amplifier power with superior heat dissipation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e45 mm (1.77″) Long-Stroke Excursion:\u003c\/strong\u003e High-roll compound surround and 2-layer Polycot spider support deep, authoritative low-frequency stroke down to its 31.8 Hz Fs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReinforced Paper Cone \u0026amp; 3D IMPP Dust Cap:\u003c\/strong\u003e Non-pressed reinforced paper cone paired with a rigid IMPP dust cap featuring Ground Zero’s embossed 3D logo and a resonance-free steel basket.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKlippel® Laser-Optimized Motor:\u003c\/strong\u003e Engineered with Ground Zero’s Klippel® testing system for balanced magnetic symmetry and clean output at high SPL levels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual 2-Ohm (D2) Wiring Flexibility:\u003c\/strong\u003e Wire a single GZRW 12XSPL in parallel to a \u003cstrong\u003e1-Ohm final load\u003c\/strong\u003e (or 4-Ohm series), or wire two GZRW 12XSPL subwoofers to a \u003cstrong\u003e0.5-Ohm or 2-Ohm final impedance\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRecommended Amplifier \u0026amp; Enclosure Pairing\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmplifier Match (800W–1,500W RMS @ 1-Ohm):\u003c\/strong\u003e Pair a single GZRW 12XSPL wired to 1 Ohm with a 1,000W–1,500W monoblock amplifier from our \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-amplifiers\"\u003eGround Zero Amplifiers\u003c\/a\u003e collection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnclosure Fitment Specs:\u003c\/strong\u003e Excels in vented\/ported SPL enclosures and daily ground-pounder trunk or SUV builds (\u003cstrong\u003e6.54″ \/ 166 mm mounting depth\u003c\/strong\u003e; \u003cstrong\u003e0.96 cu. ft. \/ 27.2 L Vas\u003c\/strong\u003e).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExplore More Ground Zero Subwoofers:\u003c\/strong\u003e Compare across our full \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-subwoofers\"\u003eGround Zero Subwoofers\u003c\/a\u003e lineup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications \u0026amp; Thiele-Small Parameters\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eGround Zero Radioactive GZRW 12XSPL\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBrand \/ Series\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGround Zero Audio — Radioactive Series\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eModel \/ MPN\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGZRW 12XSPL \/ GZRW12XSPL\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e12″ (30 cm \/ 300 mm) High-Output SPL Car Subwoofer\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePower Handling (RMS \/ SPL)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1,000 Watts RMS \/ 1,500 Watts SPL\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eRecommended Amplifier Power\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e800 – 1,500 Watts RMS\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Impedance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eDual 2-Ohm (2x 2 Ohms — 1-Ohm Parallel \/ 4-Ohm Series)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Diameter \u0026amp; Winding\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e3″ (75 mm) Copper Voice Coil\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCone, Spider \u0026amp; Basket\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eReinforced Paper Cone \/ 2-Layer Polycot Spider \/ Resonance-Free Steel Basket\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMax Excursion (Xmax)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e45 mm \/ 1.77″\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSensitivity (Efficiency)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e83 dB\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eResonance Frequency (Fs)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e31.8 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eTotal Q Factor (Qts)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.684\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEquivalent Air Volume (Vas)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e27.2 L \/ 0.96 cu. ft.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMounting Depth\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e6.54″ (166 mm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eAuthorized US Ground Zero Audio Dealer \u0026amp; Custom Installation in Toledo, OH:\u003c\/strong\u003e Ships fast from \u003cstrong\u003eTDS Car Audio\u003c\/strong\u003e (6540 Central Ave, Suite O, Toledo, OH 43617). Custom subwoofer boxes and professional installation available for drivers across Toledo, Maumee, Perrysburg, Sylvania, Holland, Bowling Green, and Southeast Michigan. Call \u003cstrong\u003e(419) 376-6140\u003c\/strong\u003e for expert support.\u003c\/p\u003e","brand":"Ground Zero Audio","offers":[{"title":"Default Title","offer_id":43593342517410,"sku":"GZRW12XSPL","price":359.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0455\/3526\/4930\/files\/GZRW-12XSPL_Side1.webp?v=1690737659"},{"product_id":"ground-zero-audio-iridum-gziw-200-20-cm-8-high-quality-subwoofer-150w-rms","title":"Ground Zero Iridium GZIW 200 8\" 150W RMS 4-Ohm Cast Basket Car Subwoofer (200W Max)","description":"\u003cp\u003eThe \u003cstrong\u003eGround Zero Audio Iridium GZIW 200\u003c\/strong\u003e (MPN: \u003cstrong\u003eGZIW 200\u003c\/strong\u003e \/ \u003cstrong\u003eGZIW200\u003c\/strong\u003e) is a high-efficiency 8-inch (20 cm \/ 200 mm) daily car and truck subwoofer engineered in Germany with a solid die-cast aluminum basket and 3D-structured HQPP cone. Rated at \u003cstrong\u003e150 Watts RMS\u003c\/strong\u003e (100W–200W recommended amplifier power) with a \u003cstrong\u003eSingle 4-Ohm\u003c\/strong\u003e voice coil, high \u003cstrong\u003e87 dB sensitivity\u003c\/strong\u003e, and a compact \u003cstrong\u003e3.94″ (100 mm) mounting depth\u003c\/strong\u003e, the Iridium GZIW 200 delivers clean, musical bass down to 32 Hz in compact sealed or vented enclosures without requiring a massive amplifier or electrical upgrade.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Acoustic Engineering\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSolid Cast Aluminum Basket \u0026amp; 3D HQPP Cone:\u003c\/strong\u003e Unlike typical stamped-steel entry-level 8-inch woofers, the GZIW 200 features a resonance-free die-cast aluminum basket and rigid 3D-structured HQPP polypropylene cone.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh 87 dB Sensitivity \u0026amp; 150W RMS Rating:\u003c\/strong\u003e Driven by a 38 mm (1.5″) copper voice coil that produces full, punchy sub-bass from just 100W to 200W RMS of amplifier power.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact 3.94″ (100 mm) Mounting Depth:\u003c\/strong\u003e Fits easily into under-seat truck enclosures, OEM subwoofer replacement locations, and compact trunk boxes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle 4-Ohm Impedance:\u003c\/strong\u003e Wire a single GZIW 200 directly to a bridged 2-channel\/4-channel amplifier at \u003cstrong\u003e4 Ohms\u003c\/strong\u003e, or wire a pair of GZIW 200 subwoofers in parallel to a \u003cstrong\u003e2-Ohm monoblock load\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRecommended Amplifier \u0026amp; Enclosure Pairing\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmplifier Match (100W–200W RMS @ 4-Ohm):\u003c\/strong\u003e Pair with a compact micro mono amplifier (such as the Ground Zero GZRA 450.1-MICRO) or a bridged multi-channel amplifier from our \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-amplifiers\"\u003eGround Zero Amplifiers\u003c\/a\u003e collection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnclosure Fitment Specs:\u003c\/strong\u003e Performs in small sealed and vented 8-inch enclosures (\u003cstrong\u003e7.17″ \/ 182 mm cutout diameter\u003c\/strong\u003e; \u003cstrong\u003e3.94″ \/ 100 mm mounting depth\u003c\/strong\u003e; \u003cstrong\u003e0.83 cu. ft. \/ 23.6 L Vas\u003c\/strong\u003e).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExplore More Ground Zero Subwoofers:\u003c\/strong\u003e Browse all \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-subwoofers\"\u003eGround Zero Subwoofers\u003c\/a\u003e in our catalog.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications \u0026amp; Thiele-Small Parameters\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eGround Zero Iridium GZIW 200\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBrand \/ Series\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGround Zero Audio — Iridium Series\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eModel \/ MPN\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGZIW 200 \/ GZIW200\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e8″ (20 cm \/ 200 mm) High-Efficiency Car Subwoofer\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePower Handling (RMS \/ Rec.)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e150 Watts RMS (100 – 200 Watts Recommended)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Impedance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eSingle 4-Ohm (1x 4 Ohms)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Diameter \u0026amp; Winding\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1.5″ (38 mm) Copper Voice Coil\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCone, Surround \u0026amp; Basket\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e3D-Structure HQPP Cone \/ Long-Stroke Rubber Surround \/ Cast Aluminum Basket\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSpider Construction\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003ePolycot Spider\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMax Excursion (Xmax)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e20 mm \/ 0.79″\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSensitivity (Efficiency)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e87 dB\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eResonance Frequency (Fs)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e32 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eTotal Q Factor (Qts)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.44\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEquivalent Air Volume (Vas)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e23.6 L \/ 0.83 cu. ft.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMounting Cutout Diameter\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e7.17″ (182 mm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMounting Depth\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e3.94″ (100 mm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eAuthorized US Ground Zero Audio Dealer \u0026amp; Custom Installation in Toledo, OH:\u003c\/strong\u003e Ships fast from \u003cstrong\u003eTDS Car Audio\u003c\/strong\u003e (6540 Central Ave, Suite O, Toledo, OH 43617). Custom enclosures and factory-integration installations available across Toledo, Maumee, Perrysburg, Sylvania, Holland, Bowling Green, and Southeast Michigan. Call \u003cstrong\u003e(419) 376-6140\u003c\/strong\u003e for assistance.\u003c\/p\u003e","brand":"Ground Zero Audio","offers":[{"title":"Default Title","offer_id":44734316576930,"sku":"GZIW200","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0455\/3526\/4930\/files\/GZIW-200_Side.webp?v=1720106653"},{"product_id":"ground-zero-audio-iridium-gziw-165-6-5-high-quality-subwoofer-100-rms","title":"Ground Zero Iridium GZIW 165 6.5\" 100W RMS 4-Ohm Cast Basket Car Subwoofer (150W Max)","description":"\u003cp\u003eThe \u003cstrong\u003eGround Zero Audio Iridium GZIW 165\u003c\/strong\u003e (MPN: \u003cstrong\u003eGZIW 165\u003c\/strong\u003e \/ \u003cstrong\u003eGZIW165\u003c\/strong\u003e) is an ultra-compact 6.5-inch (16.5 cm \/ 165 mm) daily car and truck subwoofer engineered in Germany with a solid die-cast aluminum basket and 3D-structured HQPP cone. Rated at \u003cstrong\u003e100 Watts RMS\u003c\/strong\u003e (60W–150W recommended amplifier power) with a \u003cstrong\u003eSingle 4-Ohm\u003c\/strong\u003e voice coil, high \u003cstrong\u003e85.5 dB sensitivity\u003c\/strong\u003e, and a \u003cstrong\u003e5.79″ (147 mm) cutout diameter\u003c\/strong\u003e, the Iridium GZIW 165 delivers clean, tight sub-bass from micro enclosures with just \u003cstrong\u003e0.32 cu. ft. (9.1 L) Vas\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eVehicle, Truck \u0026amp; OEM Fitment Highlights\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSolid Cast Aluminum Basket \u0026amp; 3D HQPP Cone:\u003c\/strong\u003e Built on a resonance-free die-cast aluminum basket with a rigid 3D-structured HQPP polypropylene cone and long-stroke rubber surround—far superior to typical stamped-steel 6.5″ woofers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMicro Enclosure Performance (0.32 cu. ft. \/ 9.1 L Vas):\u003c\/strong\u003e Ideal for custom center consoles, under-seat pickup truck boxes, OEM 6.5″ subwoofer replacements, kick panels, and classic car stealth audio builds.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100W RMS \/ 150W Recommended Power:\u003c\/strong\u003e Driven by a 38 mm (1.5″) copper voice coil and Klippel®-optimized motor that produce musical, punchy bass from modest amplifier channels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle 4-Ohm Impedance:\u003c\/strong\u003e Wire a single GZIW 165 directly to a bridged 2-channel\/4-channel amplifier at \u003cstrong\u003e4 Ohms\u003c\/strong\u003e, or wire a pair in parallel to a \u003cstrong\u003e2-Ohm monoblock load\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRecommended Amplifier \u0026amp; Enclosure Pairing\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmplifier Match (60W–150W RMS @ 4-Ohm):\u003c\/strong\u003e Pair with a compact micro amplifier or bridged multi-channel amplifier from our \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-amplifiers\"\u003eGround Zero Amplifiers\u003c\/a\u003e collection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnclosure Fitment Specs:\u003c\/strong\u003e Performs in micro sealed and vented enclosures (\u003cstrong\u003e5.79″ \/ 147 mm cutout diameter\u003c\/strong\u003e; \u003cstrong\u003e0.32 cu. ft. \/ 9.1 L Vas\u003c\/strong\u003e; \u003cstrong\u003e41 Hz Fs\u003c\/strong\u003e).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExplore More Ground Zero Subwoofers:\u003c\/strong\u003e Browse all \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-subwoofers\"\u003eGround Zero Subwoofers\u003c\/a\u003e in our catalog.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications \u0026amp; Thiele-Small Parameters\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eGround Zero Iridium GZIW 165\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBrand \/ Series\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGround Zero Audio — Iridium Series\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eModel \/ MPN\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGZIW 165 \/ GZIW165\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e6.5″ (16.5 cm \/ 165 mm) Cast-Basket Car Subwoofer\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePower Handling (RMS \/ Rec.)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e100 Watts RMS (60 – 150 Watts Recommended)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Impedance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eSingle 4-Ohm (1x 4 Ohms)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Diameter \u0026amp; Winding\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1.5″ (38 mm) Copper Voice Coil\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCone, Surround \u0026amp; Basket\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e3D-Structure HQPP Cone \/ Long-Stroke Rubber Surround \/ Cast Aluminum Basket\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSpider Construction\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003ePolycot Spider\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMax Excursion (Xmax)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e10 mm \/ 0.39″\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSensitivity (Efficiency)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e85.5 dB\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eResonance Frequency (Fs)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e41 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eTotal Q Factor (Qts)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.41\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEquivalent Air Volume (Vas)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e9.1 L \/ 0.32 cu. ft.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMounting Cutout Diameter\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e5.79″ (147 mm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eAuthorized US Ground Zero Audio Dealer \u0026amp; Custom Installation in Toledo, OH:\u003c\/strong\u003e Ships fast from \u003cstrong\u003eTDS Car Audio\u003c\/strong\u003e (6540 Central Ave, Suite O, Toledo, OH 43617). Custom stealth enclosures and OEM-integration installs available across Toledo, Maumee, Perrysburg, Sylvania, Holland, Bowling Green, and Southeast Michigan. Call \u003cstrong\u003e(419) 376-6140\u003c\/strong\u003e for support.\u003c\/p\u003e","brand":"Ground Zero Audio","offers":[{"title":"Default Title","offer_id":44734446731426,"sku":"GZIW165","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0455\/3526\/4930\/files\/GZIW-165_Side2022.webp?v=1720110556"},{"product_id":"ground-zero-audio-iridium-gziw-250-10-high-quality-subwoofer-250-rms","title":"Ground Zero Iridium GZIW 250 10\" 250W RMS 4-Ohm Cast Basket Car Subwoofer (300W Max)","description":"\u003cp\u003eThe \u003cstrong\u003eGround Zero Audio Iridium GZIW 250\u003c\/strong\u003e (MPN: \u003cstrong\u003eGZIW 250\u003c\/strong\u003e \/ \u003cstrong\u003eGZIW250\u003c\/strong\u003e) is a high-efficiency 10-inch (25 cm \/ 250 mm) daily car and truck subwoofer engineered in Germany with a solid die-cast aluminum basket, 3D-structured HQPP cone, and deep \u003cstrong\u003e27 Hz resonance frequency (Fs)\u003c\/strong\u003e. Rated at \u003cstrong\u003e250 Watts RMS\u003c\/strong\u003e (200W–300W recommended amplifier power) with a \u003cstrong\u003eSingle 4-Ohm\u003c\/strong\u003e voice coil, high \u003cstrong\u003e87 dB sensitivity\u003c\/strong\u003e, and a compact \u003cstrong\u003e5.08″ (129 mm) mounting depth\u003c\/strong\u003e, the Iridium GZIW 250 delivers warm, deep sub-bass from modest amplifier power.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Acoustic Engineering\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSolid Cast Aluminum Basket \u0026amp; 3D HQPP Cone:\u003c\/strong\u003e Features a resonance-free die-cast aluminum basket, rigid 3D-structured HQPP cone, and long-stroke rubber surround for distortion-free bass reproduction.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeep 27 Hz Fs \u0026amp; 25 mm (0.98″) Xmax:\u003c\/strong\u003e Klippel®-optimized motor with a 50 mm (2″) copper voice coil and Polycot spider reaches down to 27 Hz for rich, full-bodied low-end extension.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh 87 dB Sensitivity \u0026amp; 250W RMS Rating:\u003c\/strong\u003e Produces impressive output from just 200W to 300W RMS, making it ideal for daily drivers and factory-upgrade systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle 4-Ohm Impedance:\u003c\/strong\u003e Wire a single GZIW 250 to a 4-Ohm mono or bridged multi-channel amplifier, or wire two GZIW 250 10″ subwoofers in parallel to a \u003cstrong\u003e2-Ohm monoblock load\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRecommended Amplifier \u0026amp; Enclosure Pairing\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmplifier Match (200W–300W RMS @ 4-Ohm):\u003c\/strong\u003e Pair with a compact micro mono amplifier (such as the Ground Zero GZRA 450.1-MICRO) or a 5-channel system amplifier from our \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-amplifiers\"\u003eGround Zero Amplifiers\u003c\/a\u003e collection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnclosure Fitment Specs:\u003c\/strong\u003e Versatile 0.44 Qts design performs cleanly in both sealed and vented\/ported 10-inch enclosures (\u003cstrong\u003e5.08″ \/ 129 mm mounting depth\u003c\/strong\u003e; \u003cstrong\u003e1.74 cu. ft. \/ 49.3 L Vas\u003c\/strong\u003e).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExplore More Ground Zero Subwoofers:\u003c\/strong\u003e Browse all \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-subwoofers\"\u003eGround Zero Subwoofers\u003c\/a\u003e in our catalog.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications \u0026amp; Thiele-Small Parameters\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eGround Zero Iridium GZIW 250\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBrand \/ Series\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGround Zero Audio — Iridium Series\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eModel \/ MPN\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGZIW 250 \/ GZIW250\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e10″ (25 cm \/ 250 mm) Cast-Basket Car Subwoofer\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePower Handling (RMS \/ Rec.)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e250 Watts RMS (200 – 300 Watts Recommended)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Impedance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eSingle 4-Ohm (1x 4 Ohms)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Diameter \u0026amp; Winding\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e2″ (50 mm) Copper Voice Coil\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCone, Surround \u0026amp; Basket\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e3D-Structure HQPP Cone \/ Long-Stroke Rubber Surround \/ Cast Aluminum Basket\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSpider Construction\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003ePolycot Spider\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMax Excursion (Xmax)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e25 mm \/ 0.98″\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSensitivity (Efficiency)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e87 dB\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eResonance Frequency (Fs)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e27 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eTotal Q Factor (Qts)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.44\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEquivalent Air Volume (Vas)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e49.3 L \/ 1.74 cu. ft.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctd\u003e\u003cstrong\u003eMounting Depth\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e5.08″ (129 mm)\u003c\/td\u003e\n    \n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eAuthorized US Ground Zero Audio Dealer \u0026amp; Custom Installation in Toledo, OH:\u003c\/strong\u003e Ships fast from \u003cstrong\u003eTDS Car Audio\u003c\/strong\u003e (6540 Central Ave, Suite O, Toledo, OH 43617). Custom enclosures and professional installation available across Toledo, Maumee, Perrysburg, Sylvania, Holland, Bowling Green, and Southeast Michigan. Call \u003cstrong\u003e(419) 376-6140\u003c\/strong\u003e for support.\u003c\/p\u003e","brand":"Ground Zero Audio","offers":[{"title":"Default Title","offer_id":44734478712994,"sku":"GZIW250","price":149.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0455\/3526\/4930\/files\/GZIW-250_Side.webp?v=1720111438"},{"product_id":"ground-zero-audio-iridium-gziw-300-12-high-quality-subwoofer-350-rms","title":"Ground Zero Iridium GZIW 300 12\" 350W RMS 4-Ohm High-Efficiency Car Subwoofer (400W Max)","description":"\u003cp\u003eThe \u003cstrong\u003eGround Zero Audio Iridium GZIW 300\u003c\/strong\u003e (MPN: \u003cstrong\u003eGZIW 300\u003c\/strong\u003e \/ \u003cstrong\u003eGZIW300\u003c\/strong\u003e) is a high-sensitivity 12-inch (30 cm \/ 300 mm) daily car subwoofer engineered in Germany with a 3D-structured HQPP cone and Klippel®-optimized motor. Rated at \u003cstrong\u003e350 Watts RMS\u003c\/strong\u003e (200W–400W recommended amplifier power) with a \u003cstrong\u003eSingle 4-Ohm\u003c\/strong\u003e voice coil, high \u003cstrong\u003e88 dB efficiency\u003c\/strong\u003e, and \u003cstrong\u003e28 mm (1.10″) Xmax\u003c\/strong\u003e, the Iridium GZIW 300 produces deep, punchy 30 Hz bass in sealed or vented trunk enclosures without requiring heavy electrical upgrades.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Acoustic Engineering\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh 88 dB Sensitivity \u0026amp; 350W RMS Power Handling:\u003c\/strong\u003e Driven by a 50 mm (2″) copper voice coil that delivers loud, dynamic 12-inch sub-bass from just 200W to 400W RMS of amplifier power.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3D HQPP Cone \u0026amp; 28 mm (1.10″) Xmax:\u003c\/strong\u003e Rigid 3D-structured HQPP polypropylene cone paired with a long-stroke rubber surround, Polycot spider, and resonance-free steel basket.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKlippel® Laser-Optimized Motor \u0026amp; 30 Hz Fs:\u003c\/strong\u003e Tuned on Ground Zero’s Klippel® distortion analyzer for linear cone motion and smooth low-frequency extension.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle 4-Ohm Impedance:\u003c\/strong\u003e Wire a single GZIW 300 to a 4-Ohm mono or bridged multi-channel amplifier, or wire a pair of GZIW 300 12″ subwoofers in parallel to a \u003cstrong\u003e2-Ohm monoblock load\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRecommended Amplifier \u0026amp; Enclosure Pairing\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmplifier Match (200W–400W RMS @ 4-Ohm):\u003c\/strong\u003e Pair with a compact micro mono amplifier (such as the Ground Zero GZRA 450.1-MICRO or GZRA 700.1-MICRO) from our \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-amplifiers\"\u003eGround Zero Amplifiers\u003c\/a\u003e collection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnclosure Fitment Specs:\u003c\/strong\u003e Performs in sealed, vented\/ported, and bandpass 12-inch enclosures (\u003cstrong\u003e11.30″ \/ 287 mm cutout diameter\u003c\/strong\u003e; \u003cstrong\u003e5.87″ \/ 149 mm mounting depth\u003c\/strong\u003e; \u003cstrong\u003e2.45 cu. ft. \/ 69.3 L Vas\u003c\/strong\u003e).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExplore More Ground Zero Subwoofers:\u003c\/strong\u003e Browse all \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-subwoofers\"\u003eGround Zero Subwoofers\u003c\/a\u003e in our catalog.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications \u0026amp; Thiele-Small Parameters\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eGround Zero Iridium GZIW 300\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBrand \/ Series\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGround Zero Audio — Iridium Series\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eModel \/ MPN\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGZIW 300 \/ GZIW300\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e12″ (30 cm \/ 300 mm) High-Efficiency Car Subwoofer\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePower Handling (RMS \/ Rec.)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e350 Watts RMS (200 – 400 Watts Recommended)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Impedance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eSingle 4-Ohm (1x 4 Ohms)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Diameter \u0026amp; Winding\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e2″ (50 mm) Copper Voice Coil\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCone, Surround \u0026amp; Basket\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e3D-Structure HQPP Cone \/ Long-Stroke Rubber Surround \/ Resonance-Free Steel Basket\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSpider Construction\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003ePolycot Spider\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMax Excursion (Xmax)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e28 mm \/ 1.10″\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSensitivity (Efficiency)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e88 dB\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eResonance Frequency (Fs)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e30 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eTotal Q Factor (Qts)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.58\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEquivalent Air Volume (Vas)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e69.3 L \/ 2.45 cu. ft.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMounting Cutout Diameter\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e11.30″ (287 mm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMounting Depth\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e5.87″ (149 mm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eAuthorized US Ground Zero Audio Dealer \u0026amp; Custom Installation in Toledo, OH:\u003c\/strong\u003e Ships fast from \u003cstrong\u003eTDS Car Audio\u003c\/strong\u003e (6540 Central Ave, Suite O, Toledo, OH 43617). Custom subwoofer boxes and professional installation available across Toledo, Maumee, Perrysburg, Sylvania, Holland, Bowling Green, and Southeast Michigan. Call \u003cstrong\u003e(419) 376-6140\u003c\/strong\u003e for support.\u003c\/p\u003e","brand":"Ground Zero Audio","offers":[{"title":"Default Title","offer_id":44734641504418,"sku":"GZIW300","price":169.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0455\/3526\/4930\/files\/GZIW-300_Side.webp?v=1720112727"},{"product_id":"ground-zero-audio-gzrw-6xspl-16-5-cm-6-5-high-quality-spl-subwoofer","title":"Ground Zero Radioactive GZRW 6XSPL 6.5\" 350W RMS Dual 2-Ohm Compact SPL Subwoofer (700W Max)","description":"\u003cp\u003eThe \u003cstrong\u003eGround Zero Audio Radioactive GZRW 6XSPL\u003c\/strong\u003e (MPN: \u003cstrong\u003eGZRW 6XSPL\u003c\/strong\u003e \/ \u003cstrong\u003eGZRW6XSPL\u003c\/strong\u003e) is a compact, high-excursion 6.5-inch (16.5 cm \/ 165 mm) SPL subwoofer engineered in Germany for custom center consoles, under-seat truck boxes, motorcycle saddlebags, and tight-clearance cabin installations. Rated at \u003cstrong\u003e350 Watts RMS \/ 700 Watts SPL\u003c\/strong\u003e (250W–700W recommended amplifier power) with \u003cstrong\u003eDual 2-Ohm (2x 2-Ohm)\u003c\/strong\u003e voice coils, a \u003cstrong\u003e50 mm (2″) copper voice coil\u003c\/strong\u003e, and \u003cstrong\u003e22 mm (0.866″) Xmax\u003c\/strong\u003e, the Radioactive GZRW 6XSPL produces shocking low-end punch from ultra-small enclosures.\u003c\/p\u003e\n\n\u003ch3\u003eVehicle, Truck \u0026amp; Powersports Fitment Highlights\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Compact 6.5″ Footprint \u0026amp; 3.90″ (99 mm) Depth:\u003c\/strong\u003e Fits where 8-inch and 10-inch subwoofers cannot—ideal for under-seat pickup truck arrays, custom center consoles, Harley-Davidson touring saddlebags, UTVs, and OEM stealth locations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e350W RMS \/ 700W SPL Power Handling:\u003c\/strong\u003e Oversized 50 mm (2″) pure copper voice coil handles 250W to 700W of amplifier power without thermal fatigue.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e22 mm (0.866″) Long-Stroke Excursion:\u003c\/strong\u003e Reinforced paper cone, high-roll compound surround, Polycot spider, and Klippel®-optimized motor deliver deep, controlled stroke in micro ported boxes (just 0.078 cu. ft. \/ 2.2 L Vas).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual 2-Ohm (D2) Wiring Versatility:\u003c\/strong\u003e Wire a single GZRW 6XSPL in parallel to a \u003cstrong\u003e1-Ohm load\u003c\/strong\u003e (or 4-Ohm series), a pair of 6.5″ subs to \u003cstrong\u003e2 Ohms\u003c\/strong\u003e, or a quad-6.5″ under-seat truck box to \u003cstrong\u003e1 Ohm\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRecommended Amplifier \u0026amp; Enclosure Pairing\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmplifier Match (250W–700W RMS):\u003c\/strong\u003e Pair with a compact mono or multi-channel amplifier from our \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-amplifiers\"\u003eGround Zero Amplifiers\u003c\/a\u003e collection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnclosure Fitment Specs:\u003c\/strong\u003e Optimized for micro vented\/ported enclosures (\u003cstrong\u003e5.79″ \/ 147 mm cutout diameter\u003c\/strong\u003e; \u003cstrong\u003e3.90″ \/ 99 mm mounting depth\u003c\/strong\u003e; \u003cstrong\u003e0.078 cu. ft. \/ 2.2 L Vas\u003c\/strong\u003e).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExplore More Ground Zero Subwoofers:\u003c\/strong\u003e Browse all \u003ca href=\"https:\/\/tdscaraudio.com\/collections\/ground-zero-subwoofers\"\u003eGround Zero Subwoofers\u003c\/a\u003e in our catalog.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications \u0026amp; Thiele-Small Parameters\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eGround Zero Radioactive GZRW 6XSPL\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBrand \/ Series\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGround Zero Audio — Radioactive Series\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eModel \/ MPN\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGZRW 6XSPL \/ GZRW6XSPL\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e6.5″ (16.5 cm \/ 165 mm) High-Output SPL Car \u0026amp; Truck Subwoofer\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePower Handling (RMS \/ SPL)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e350 Watts RMS \/ 700 Watts SPL\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eRecommended Amplifier Power\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e250 – 700 Watts RMS\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Impedance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eDual 2-Ohm (2x 2 Ohms — 1-Ohm Parallel \/ 4-Ohm Series)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVoice Coil Diameter \u0026amp; Winding\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e2″ (50 mm) Copper Voice Coil\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCone, Spider \u0026amp; Basket\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eReinforced Paper Cone \/ Polycot Spider \/ Resonance-Free Steel Basket\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMax Excursion (Xmax)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e22 mm \/ 0.866″\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSensitivity (Efficiency)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e79 dB\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eResonance Frequency (Fs)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e49.5 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eTotal Q Factor (Qts)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.621\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEquivalent Air Volume (Vas)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e2.2 L \/ 0.078 cu. ft.\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMounting Cutout Diameter\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e5.79″ (147 mm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMounting Depth\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e3.90″ (99 mm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eAuthorized US Ground Zero Audio Dealer \u0026amp; Custom Installation in Toledo, OH:\u003c\/strong\u003e Ships fast from \u003cstrong\u003eTDS Car Audio\u003c\/strong\u003e (6540 Central Ave, Suite O, Toledo, OH 43617). Custom multi-6.5″ truck boxes and professional installation available across Toledo, Maumee, Perrysburg, Sylvania, Holland, Bowling Green, and Southeast Michigan. Call \u003cstrong\u003e(419) 376-6140\u003c\/strong\u003e for support.\u003c\/p\u003e","brand":"Ground Zero Audio","offers":[{"title":"Default Title","offer_id":45075547259042,"sku":"GZRW6XSPL","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0455\/3526\/4930\/files\/GZRW-6XSPL_Side.webp?v=1731884171"},{"product_id":"ground-zero-radioactive-gzrw-10xspl-10-high-quality-spl-subwoofer","title":"Ground Zero Radioactive GZRW 10XSPL 10\" 800W RMS Dual 2-Ohm SPL Car Subwoofer (1200W Max)","description":"\u003ch4\u003eRADIOACTIVE SERIES\u003c\/h4\u003e\n\u003ch4\u003e1200 Watts SPL\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e10″ high quality SPL subwoofer with reinforced paper cone\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e10″ high quality SPL subwoofer\u003c\/li\u003e\n\u003cli\u003eKlippel® optimized\u003c\/li\u003e\n\u003cli\u003eReinforced paper cone\u003c\/li\u003e\n\u003cli\u003eLong stroke compound surround\u003c\/li\u003e\n\u003cli\u003eSolid aluminum cast basket\u003c\/li\u003e\n\u003cli\u003e63 mm \/ 2.5″ copper voice coil\u003c\/li\u003e\n\u003cli\u003e2-layer Polycot spider\u003c\/li\u003e\n\u003cli\u003eIMPP dust cap with 3D structure logo\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eHigh-Quality SPL Subwoofer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e25 cm \/ 10″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower handling (RMS\/SPL)\u003c\/th\u003e\n\u003ctd\u003e800 \/ 1200 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpedance\u003c\/th\u003e\n\u003ctd\u003e2x 2 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEfficiency\u003c\/th\u003e\n\u003ctd\u003e82 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower recommendation\u003c\/th\u003e\n\u003ctd\u003e600 – 1200 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoice coil\u003c\/th\u003e\n\u003ctd\u003e63 mm \/ 2.5″ copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCone\u003c\/th\u003e\n\u003ctd\u003eReinforced paper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax. 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Excursion (Xmax)\u003c\/th\u003e\n\u003ctd\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting depth\u003c\/th\u003e\n\u003ctd\u003e166 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResonance frequency (Fs)\u003c\/th\u003e\n\u003ctd\u003e25.7 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDamping ratio (Qts)\u003c\/th\u003e\n\u003ctd\u003e0.498\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEquiv. air volume (Vas)\u003c\/th\u003e\n\u003ctd\u003e31.2 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Ground Zero Audio","offers":[{"title":"Default Title","offer_id":46281951084706,"sku":"GZRW30-D2","price":299.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0455\/3526\/4930\/files\/GZRW-30-D2_Side1.webp?v=1762464778"},{"product_id":"ground-zero-audio-radioactive-gzrw-38-d2-15-high-quality-subwoofer","title":"Ground Zero Radioactive GZRW 38-D2 15\" 1000W RMS Dual 2-Ohm Car Subwoofer (1500W Max)","description":"\u003ch4\u003eRADIOACTIVE SERIES\u003c\/h4\u003e\n\u003ch4\u003e1000 Watts RMS\u003c\/h4\u003e\n\u003cp\u003e15″ high quality subwoofer with reinforced paper cone and long stroke surround\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e15″ high quality subwoofer\u003c\/li\u003e\n\u003cli\u003eKlippel® optimized\u003c\/li\u003e\n\u003cli\u003eReinforced paper cone\u003c\/li\u003e\n\u003cli\u003eLong stroke compound surround\u003c\/li\u003e\n\u003cli\u003eResonance free steel basket\u003c\/li\u003e\n\u003cli\u003e75 mm \/ 3″ copper voice coil\u003c\/li\u003e\n\u003cli\u003ePolycot spider\u003c\/li\u003e\n\u003cli\u003eIMPP dust cap with 3D structure logo\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eHigh-Quality street subwoofer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Handling (RMS)\u003c\/th\u003e\n\u003ctd\u003e1000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpedance\u003c\/th\u003e\n\u003ctd\u003e2x 2 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEfficiency\u003c\/th\u003e\n\u003ctd\u003e85.8 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower recommendation\u003c\/th\u003e\n\u003ctd\u003e800 – 1400 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoice coil\u003c\/th\u003e\n\u003ctd\u003e75 mm \/ 3″ Copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCone\u003c\/th\u003e\n\u003ctd\u003eReinforced paper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax. 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