{"product_id":"avatar-18-car-subwoofer-3500w-rms-dual-1-ohm-4-voice-coil-doomsday-18-d1","title":"Avatar 18\" Car Subwoofer 3500W RMS Dual 1 Ohm 4\" Voice Coil Doomsday 18 D1","description":"\u003cul\u003e\n\u003cli\u003e3,500 WATTS RMS: Handles 3,500W RMS and 7,000W max, made for high power amplifiers and serious bass systems.\u003c\/li\u003e\n\u003cli\u003eDUAL 1 OHM VOICE COILS: Wire it to 0.5 ohm or 2 ohm to match your amplifier and system layout.\u003c\/li\u003e\n\u003cli\u003e4\" ALUMINUM VOICE COIL: A large 4\" voice coil wound with aluminum wire is built to take sustained power.\u003c\/li\u003e\n\u003cli\u003e20 MM XMAX: Long excursion lets the cone move more air for deep, loud low end.\u003c\/li\u003e\n\u003cli\u003eFERRITE MOTOR AND ALUMINUM FRAME: A ferrite magnet and aluminum frame give it a solid foundation for heavy use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eAvatar 18\" Car Subwoofer 3500W RMS Dual 1 Ohm 4\" Voice Coil Doomsday 18 D1\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003e(1) Avatar Doomsday 18 D1 18\" Subwoofer\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003eThe Avatar Doomsday 18 D1 is an 18\" subwoofer built for high power systems that need serious low end. It’s rated at 3,500 watts RMS (7,000 watts max) and uses a 4\" aluminum wire voice coil, a pressed paper cone, a foam surround and a ferrite magnet on an aluminum frame.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eThis is the dual 1 ohm version. That gives you two wiring options: both coils in parallel for a 0.5 ohm final load, or in series for a 2 ohm final load. Make sure your amplifier is stable at the load you choose before wiring it up.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eWith 20 mm of Xmax, a 29 Hz Fs and a Vas of 76.40 L (about 2.70 cubic feet), this sub is made to move a lot of air. Plan your build around its size, though. It needs a 16.71\" cutout and 12.13\" of mounting depth, so check your enclosure’s internal depth behind the baffle before you order.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eIf you’re building a big single 18 setup or stepping up to a multi sub wall, the Doomsday 18 D1 has the power handling and excursion to back it up.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003eDual 1 ohm voice coils: wire to 0.5 ohm (parallel) or 2 ohm (series)\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCutout diameter: 16.71\" (424.5 mm), measured as the hole size cut in the baffle\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eMounting depth: 12.13\" (308 mm), measured from the mounting surface to the back of the motor\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVas of 76.40 L (about 2.70 cu ft) means it’s a large air space driver, so it isn’t suited for small shallow boxes\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eGross weight: 89.29 lb (40.5 kg); make sure your baffle and enclosure bracing can support it\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003eModel: Doomsday 18 D1\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eSize: 18\"\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eType: Passive Subwoofer\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eRMS Power: 3,500W\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eMax Power: 7,000W\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eImpedance: Dual 1 Ohm (1+1)\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVoice Coil Size: 4.00\"\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVoice Coil Wire: Aluminum\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCone Material: Pressed Paper\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eSurround Material: Foam\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eMagnet Type: Ferrite\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eFrame: Aluminum\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eSPL: 88.20 dB\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eFs: 29.00 Hz\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eQts: 0.45\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eBL: 26.20\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eVas: 76.40 L\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eXmax: 20.00 mm (0.79\")\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eMounting Depth: 12.13\" (308.0 mm)\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCut-Out Diameter: 16.71\" (424.5 mm)\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eGross Weight: 89.29 lb (40.5 kg)\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003eA big, heavy 18 with real excursion, ready for builds that need more than a typical daily sub.\u003c\/p\u003e","brand":"Avatar","offers":[{"title":"Default Title","offer_id":68064378618104,"sku":"AT-DOOMSDAY-18-D1","price":849.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0029\/9384\/8365\/files\/3aee95139794bad21634abb4cdca23003f5318ee2ecf17b5856f79af8c180cb4.jpg?v=1794405110","url":"https:\/\/bigjeffaudio.com\/products\/avatar-18-car-subwoofer-3500w-rms-dual-1-ohm-4-voice-coil-doomsday-18-d1","provider":"Big Jeff Online Inc","version":"1.0","type":"link"}