{"product_id":"ground-zero-audio-hydrogen-gzhw-30-d1-12-high-performance-dual-1-subwoofer","title":"Ground Zero Audio Hydrogen GZHW 30-D1 12″ High-Performance Dual 1 Subwoofer","description":"\u003ch4\u003e***PRE ORDER ONLY!\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eNEW FOR 2026\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSOLD IN SINGLES\u003c\/p\u003e\n\u003cp\u003eHYDROGEN SERIES\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e3000 Watts SPL\u003c\/h4\u003e\n\u003cp\u003e12″ High-Performance Subwoofer with aluminum cast basket and reinforced paper cone\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e12″ subwoofer\u003c\/li\u003e\n\u003cli\u003eKlippel® optimized\u003c\/li\u003e\n\u003cli\u003eReinforced paper cone\u003c\/li\u003e\n\u003cli\u003eLong stroke U-surround\u003c\/li\u003e\n\u003cli\u003eSolid aluminum cast basket\u003c\/li\u003e\n\u003cli\u003e75 mm \/ 3″ copper voice coil\u003c\/li\u003e\n\u003cli\u003e2-layer Polycot spider\u003c\/li\u003e\n\u003cli\u003eCarbon dust cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eHigh-Performance Subwoofer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e30 cm \/ 12″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower handling (RMS\/SPL)\u003c\/th\u003e\n\u003ctd\u003e1500 \/ 3000 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpedance\u003c\/th\u003e\n\u003ctd\u003e2x 1 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEfficiency\u003c\/th\u003e\n\u003ctd\u003e85 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower recommendation\u003c\/th\u003e\n\u003ctd\u003e1000 – 3000 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. Excursion (Xmax)\u003c\/th\u003e\n\u003ctd\u003e45 mm \/ 1.77″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting Ø\u003c\/th\u003e\n\u003ctd\u003e284 mm \/ 11.18″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting depth\u003c\/th\u003e\n\u003ctd\u003e198 mm \/ 7.80″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResonance frequency (Fs)\u003c\/th\u003e\n\u003ctd\u003e39.1 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall quality (Qts)\u003c\/th\u003e\n\u003ctd\u003e0.56\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEquiv. air volume (Vas)\u003c\/th\u003e\n\u003ctd\u003e17.6 L \/ 0.62 cu.ft.\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":46568724594850,"sku":"GZHW30D1","price":649.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0455\/3526\/4930\/files\/GZHW-30-D1-D2-7.png?v=1770238666","url":"https:\/\/tdscaraudio.com\/products\/ground-zero-audio-hydrogen-gzhw-30-d1-12-high-performance-dual-1-subwoofer","provider":"TDS Car Audio","version":"1.0","type":"link"}