Ground Zero Radioactive GZRW 25-D2 10" 600W RMS Dual 2-Ohm Car Subwoofer (900W Max)

The Ground Zero Audio Radioactive GZRW 25-D2 (MPN: GZRW 25-D2 / GZRW25-D2) 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 600 Watts RMS / 900 Watts Max SPL (300W–900W recommended amplifier power) with Dual 2-Ohm (2x 2-Ohm) voice coils, a massive 50 mm (1.97″) Xmax, and an ultra-low 26.3 Hz resonance frequency (Fs), the Radioactive GZRW 25-D2 digs deeper than standard 10-inch subwoofers.

Key Features & Acoustic Engineering

• Extreme 50 mm (1.97″) Long-Stroke Excursion: 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.
• Ultra-Low 26.3 Hz Fs for Deep Street Bass: Tuned specifically for warm, low-reaching street bass that plays effortlessly into the mid-20 Hz range.
• 600W RMS / 900W SPL Power Handling: 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.
• Dual 2-Ohm (D2) Wiring Flexibility: Wire a single GZRW 25-D2 in parallel to a 1-Ohm final load (or 4-Ohm series), or run a pair of 10″ subwoofers at a 2-Ohm or 0.5-Ohm final impedance.

Recommended Amplifier & Enclosure Pairing

• Amplifier Match (300W–900W RMS @ 1-Ohm): Pair a single GZRW 25-D2 wired to 1 Ohm with a compact monoblock amplifier from our Ground Zero Amplifiers collection.
• Enclosure Fitment Specs: Ideal for sealed or vented/ported 10-inch car and truck enclosures (8.98″ / 228 mm cutout diameter; 5.94″ / 151 mm mounting depth; 1.00 cu. ft. / 28.3 L Vas).
• Explore More Ground Zero Subwoofers: Compare across our full Ground Zero Subwoofers lineup.

Technical Specifications & Thiele-Small Parameters

Authorized US Ground Zero Audio Dealer & Custom Installation in Toledo, OH: Ships fast from TDS Car Audio (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 (419) 376-6140 for support.