{"product_id":"down4sound-dvx-18-subwoofer-1700w-rms","title":"Down4Sound DVX 18\" Subwoofer 1700W RMS","description":"\u003cp\u003eThe DOWN4SOUND DVX-18 D4 is engineered for listeners who demand authoritative, precise, and durable low-frequency performance. Built with a massive high-strength motor, extended mechanical throw, and a real premium carbon fiber dustcap, the DVX-18 delivers exceptional output and accuracy suitable for daily driving, demonstration builds, and high-power systems.\u003c\/p\u003e \u003cp\u003eThis model provides a true 1700W RMS power rating and a dual 4-ohm voice coil configuration for flexible amplifier matching and wiring options. Every component is designed for efficiency, cooling, and long-term reliability under significant sound pressure levels.\u003c\/p\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e1700W RMS power handling\u003c\/li\u003e \u003cli\u003eDual 4-ohm voice coil design\u003c\/li\u003e \u003cli\u003e3-inch high-temperature voice coil\u003c\/li\u003e \u003cli\u003e33 mm one-way Xmax for extended linear travel\u003c\/li\u003e \u003cli\u003eFull carbon fiber dustcap for strength and rigidity\u003c\/li\u003e \u003cli\u003eAdvanced venting throughout the motor structure for improved cooling\u003c\/li\u003e \u003cli\u003e68-lb heavy-duty construction designed for extreme output applications\u003c\/li\u003e \u003cli\u003e8.66-inch (220 mm) motor diameter\u003c\/li\u003e \u003cli\u003eHighly extended pole piece for increased linear throw\u003c\/li\u003e \u003cli\u003ePole vent flared on both ends for superior airflow and low noise\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\u003e6.050 ohm\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eResonance Frequency (Fs)\u003c\/h2\u003e28.036 Hz\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eQms\u003c\/h2\u003e3.012\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eQes\u003c\/h2\u003e0.659\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eQts\u003c\/h2\u003e0.541\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eMms (Moving Mass)\u003c\/h2\u003e492.526 g\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eCms (Compliance)\u003c\/h2\u003e56.483 μm\/N\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eRms (Mechanical Resistance)\u003c\/h2\u003e0.803\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eVas\u003c\/h2\u003e119.508 L\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSd:\u003c\/strong\u003e 113.411 cm²\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eBL Product\u003c\/h2\u003e28.212 T·m\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eSensitivity (SPL)\u003c\/h2\u003e87.9 dB\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eXmax\u003c\/h2\u003e33 mm\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eDisplacement\u003c\/h2\u003e0.23 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\u003eExtended pole piece for improved linear performance and mechanical control\u003c\/li\u003e \u003cli\u003eDual-flared pole venting for low-noise airflow and efficient heat removal\u003c\/li\u003e \u003cli\u003eRear gap ventilation for reduced voice coil temperatures during sustained playback\u003c\/li\u003e \u003cli\u003e8.66-inch (220 mm) motor diameter for substantial magnetic strength\u003c\/li\u003e \u003cli\u003eLong-fiber spider system for reliable, consistent suspension behavior\u003c\/li\u003e \u003cli\u003eCarbon fiber dustcap for reduced moving mass and enhanced rigidity\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003eRecommended Enclosure\u003c\/strong\u003e\u003c\/h2\u003e \u003ch2\u003ePorted Enclosure\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003ch2\u003eVolume\u003c\/h2\u003e7 cubic feet (net)\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eTuning Frequency\u003c\/h2\u003e28–32 Hz\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eThis alignment provides deep low-frequency extension, high output, and low distortion suitable for daily music listening and large-cabin high-power builds.\u003c\/p\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003ePhysical Dimensions\u003c\/strong\u003e\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003ch2\u003eCutout Diameter\u003c\/h2\u003e17.00 in (431.8 mm)\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eMounting Depth\u003c\/h2\u003e11.81 in (300 mm)\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eOutside Diameter\u003c\/h2\u003e18.49 in (469 mm)\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eMotor Diameter\u003c\/h2\u003e8.66 in (220 mm)\u003c\/li\u003e \u003cli\u003e\n\u003ch2\u003eWeight\u003c\/h2\u003e68 lb\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003eWhy Choose the DVX-18 D4\u003c\/strong\u003e\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eExtreme output capability with accurate, controlled low-frequency reproduction\u003c\/li\u003e \u003cli\u003eDurable construction optimized for long-term performance in demanding systems\u003c\/li\u003e \u003cli\u003eFlexible wiring thanks to the dual 4-ohm voice coils\u003c\/li\u003e \u003cli\u003eReal carbon fiber dustcap adds both structural strength and a premium appearance\u003c\/li\u003e \u003cli\u003eDesigned for users who require deep, powerful bass without sacrificing clarity\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch2\u003e\u003cstrong\u003eIdeal Applications\u003c\/strong\u003e\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eLarge-cabin daily music systems\u003c\/li\u003e \u003cli\u003eHigh-power demo builds\u003c\/li\u003e \u003cli\u003eTrunk, wall, or 4th\/6th-order enclosures\u003c\/li\u003e \u003cli\u003eSQL (Sound Quality Loud) and SPL-leaning setups\u003c\/li\u003e \u003cli\u003eUsers seeking strong low-end response in the 25–45 Hz range\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":66828367986733,"sku":"DVX18D4","price":549.99,"currency_code":"USD","in_stock":true},{"title":"D2","offer_id":66828368019501,"sku":"DVX18D2","price":549.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/down4sound-dvx-18-subwoofer-1700w-rms-w_26ab4b84-c0b3-4eca-a0cb-b159796da6c6.jpg?v=1782676225","url":"https:\/\/www.jsultimatesounds.com\/products\/down4sound-dvx-18-subwoofer-1700w-rms","provider":"JS Ultimate Sounds","version":"1.0","type":"link"}