{"product_id":"down4sound-dbz-8-subwoofer-700w-rms","title":"Down4Sound DBZ 8\" Subwoofer 700W RMS","description":"\u003cp\u003eThe DOWN4SOUND DBz-8 D4 is the ultimate budget banger designed to deliver exceptional performance and value. With a true 700W RMS power rating, this subwoofer provides big, punchy bass without the big price tag. Featuring a dual 4-ohm voice coil configuration, the DBz-8 offers versatile wiring options and strong output in compact enclosures. The real carbon fiber dustcap adds a premium aesthetic while increasing structural rigidity and performance.\u003c\/p\u003e \u003cp\u003eEvery component is engineered for efficiency, durability, and long-term reliability, making the DBz-8 D4 an ideal upgrade for daily drivers, small-space installs, or budget-friendly high-output systems.\u003c\/p\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e700W RMS power handling\u003c\/li\u003e \u003cli\u003eDual 4-ohm voice coil design\u003c\/li\u003e \u003cli\u003e2.5-inch high-temperature voice coil\u003c\/li\u003e \u003cli\u003e21 mm Xmax for impressive linear travel\u003c\/li\u003e \u003cli\u003eReal carbon fiber dustcap for strength, rigidity, and premium appearance\u003c\/li\u003e \u003cli\u003eAdvanced venting throughout the motor structure for improved cooling\u003c\/li\u003e \u003cli\u003eHeavy-duty construction optimized for compact high-output performance\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003eTechnical Specifications (T\/S Parameters)\u003c\/strong\u003e\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003ch2\u003eRevc (DC Resistance)\u003c\/h2\u003e6.400 ohm\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eResonance Frequency (Fs)\u003c\/h2\u003e46.157 Hz\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eQms\u003c\/h2\u003e1.895\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eQes\u003c\/h2\u003e0.618\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eQts\u003c\/h2\u003e0.466\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eMms (Moving Mass)\u003c\/h2\u003e202.138 g\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eCms (Compliance)\u003c\/h2\u003e57.318 μm\/N\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eRms (Mechanical Resistance)\u003c\/h2\u003e0.757\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eVas\u003c\/h2\u003e3.290 L\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSd:\u003c\/strong\u003e 210.105 cm²\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eBL Product\u003c\/h2\u003e24.797 T·m\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eSensitivity (SPL)\u003c\/h2\u003e79.2 dB\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eXmax\u003c\/h2\u003e21 mm\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eDisplacement\u003c\/h2\u003e0.07 cu ft\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003eEngineering and Construction\u003c\/strong\u003e\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eCompact, efficient motor engineered for strong output\u003c\/li\u003e \u003cli\u003eRear gap ventilation for improved coil cooling and reduced thermal compression\u003c\/li\u003e \u003cli\u003eReinforced suspension system for stable high-excursion performance\u003c\/li\u003e \u003cli\u003eReal carbon fiber dustcap enhances rigidity and prevents deformation\u003c\/li\u003e \u003cli\u003ePrecision-wound 2.5\" coil supports high power levels without heat fatigue\u003c\/li\u003e \u003cli\u003eBuilt to provide maximum performance at an affordable cost\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003eRecommended Enclosures\u003c\/strong\u003e\u003c\/h2\u003e \u003ch2\u003eSealed Enclosure\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\u003cstrong\u003e0.3 – 0.4 cu ft (net)\u003c\/strong\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003ePorted Enclosure\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\u003cstrong\u003e0.75 – 1.0 cu ft (net)\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eRecommended Tuning\u003c\/h2\u003e32 Hz\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eRecommended Port Area\u003c\/h2\u003e9 – 15 sq in total\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003ePhysical Dimensions\u003c\/strong\u003e\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003ch2\u003eCutout Diameter\u003c\/h2\u003e7.32 in (186 mm)\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eMounting Depth\u003c\/h2\u003e6.61 in (168 mm)\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eOutside Diameter\u003c\/h2\u003e8.71 in (221 mm)\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eMotor Diameter\u003c\/h2\u003e6.69 in (170 mm)\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eNet Weight\u003c\/h2\u003e23.6 lb (10.7 kg)\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eGross Weight\u003c\/h2\u003e26.9 lb (12.2 kg)\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003eWhy You Should Buy the DBz-8 D4\u003c\/strong\u003e\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eHigh-quality bass on a budget\u003c\/li\u003e \u003cli\u003eCompact 8\" form factor with strong low-end output\u003c\/li\u003e \u003cli\u003eDual 4-ohm coils allow flexible wiring options\u003c\/li\u003e \u003cli\u003eCarbon fiber dustcap adds strength and a premium aesthetic\u003c\/li\u003e \u003cli\u003ePerfect blend of affordability, power, and durability\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch2\u003e\n\u003cstrong\u003eIdeal Applications\u003c\/strong\u003e\u003cem\u003e\u003cbr\u003e\u003c\/em\u003e\n\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eDaily-driven bass systems requiring big sound in tight spaces\u003c\/li\u003e \u003cli\u003eBuilds tuned in the \u003cstrong\u003e28–35 Hz range\u003c\/strong\u003e, where the DBz-8 produces deep, rolling lows that come alive with real cabin gain\u003c\/li\u003e \u003cli\u003eCompact ported enclosures, under-seat installs, hatchbacks, and small SUV systems\u003c\/li\u003e \u003cli\u003eSQL-style daily setups emphasizing strong midbass punch with usable low-end authority\u003c\/li\u003e \u003cli\u003eUsers wanting responsive, aggressive bass performance without needing a large enclosure\u003c\/li\u003e \u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized Down4Sound dealer at JS Ultimate Sounds. Free shipping on orders $99+.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Down4Sound","offers":[{"title":"D4","offer_id":66828370346029,"sku":"DBz8D4","price":199.99,"currency_code":"USD","in_stock":true},{"title":"D2","offer_id":66828370378797,"sku":"DBz8D2","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/down4sound-dbz-8-subwoofer-700w-rms-w_aef239f0-511e-485f-a9dd-9f29ec3242d9.jpg?v=1782676199","url":"https:\/\/www.jsultimatesounds.com\/products\/down4sound-dbz-8-subwoofer-700w-rms","provider":"JS Ultimate Sounds","version":"1.0","type":"link"}