{"product_id":"ds18-psw8-4d-8-shallow-mount-subwoofer-450-watts-rms-dual-4-ohm","title":"DS18 PSW8.4D 8\" Shallow Mount Subwoofer - 400 Watts Rms Dual 4-ohm","description":"\u003cp\u003e\u003cstrong\u003e8” Dual Voice Coil Shallow-Mount Subwoofer – 400W RMS \/ 800W MAX\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe PSW8.4D is a shallow-mount 8” subwoofer engineered to deliver serious low-end punch in minimal space.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTight Spots and Deep Drops\u003c\/strong\u003e\u003cbr\u003eWith a mounting depth of just 3.5 inches and a total depth of 4”, the PSW8.4D fits clean into under-seat boxes, truck enclosures, and other compact builds but reaches frequencies as low as 20Hz\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDual 4-Ohm Voice Coils for Flexible Wiring\u003c\/strong\u003e\u003cbr\u003eWired in series or parallel, the dual 4-ohm voice coils give you options for system matching and amp tuning. That means more control over your setup and more reliable performance under pressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHit Hard and Stay Cool\u003c\/strong\u003e\u003cbr\u003eA 2\" aluminum voice coil and water-resistant paper + aluminum cone allow for better heat dissipation and long-lasting performance. The ferrite motor and high-roll rubber surround deliver strength and stability for extended play at high volume.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTuned for Accuracy\u003c\/strong\u003e\u003cbr\u003eWith a sensitivity of 81dB and an optimal sealed box volume of 0.35–1.3 ft³, the PSW8.4D balances deep bass with tonal precision.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBring the boom to any mounting space with DS18’s PSW8.4D!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKey Features:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eShallow-mount 8” subwoofer designed for tight installations\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDual 4-ohm voice coils for flexible system wiring\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e400W RMS \/ 800W MAX power output\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWater-resistant paper cone with aluminum reinforcement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3.5” mounting depth ideal for compact enclosures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGeneral: \u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNominal Diameter: 8\" \/ 203mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNominal Impedance: 4 + 4 Ohms\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRMS Power Handling: 400W\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMAX Power Handling: 800W\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSensitivity (1W\/1M): 81 dB\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 20-300 Hz\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRecommended Low-Pass Crossover: 100 Hz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMotor: \u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVoice Coil Diameter: 2\" \/ 50.8mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVoice Coil Former Material: Aluminum\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWinding Material: Copper\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCone Material: Water-resistant paper with aluminum reinforcement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSurround Material: Rubber\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMagnet Material: Ferrite\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMagnet Weight: 38 oz\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDisplacement Volume: 0.5 L \/ 0.017 ft3\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBasket Material: Steel\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBasket Finish: Matte Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThiele \u0026amp; Small Parameters: \u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEquivalent Volume (Vas): 9.38 L \/ 0.33 ft3\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExcursion (Xmax, one way): 8.5 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFree Air Resonance (Fs): 42 Hz\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMechanical Factor (Qms): 4.08\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eElectrical Factor (Qes): 1.06\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTotal Factor (Qts): 0.84\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMoving Mass (Mms): 98.43 g\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompliance (Cms): 141.08 mm\/N\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBL Factor: 12.61\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVoice Coil Inductance (Le): 1.83 mH\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDiaphragm Area (Sd): 216 cm2\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDC Resistance (Re): 3.2 + 3.2 Ohms\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEfficiency Bandwidth Product (EBP): 39.6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRecommended Enclosure: \u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSealed Internal Volume Range: 10L to 37L \/ 0.35ft3 to 1.3 ft3\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSealed Box Output Response (F3): 38-43 Hz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMeasurement: \u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOverall Diameter: 8.6\" \/ 220mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOverall Depth: 4\" \/ 102mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFront Mount Baffle Cutout: 7.5\" \/ 191mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMounting Depth: 3.5\" \/ 90mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMotor Diameter: 5.27\" \/ 134mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DS18","offers":[{"title":"Default Title","offer_id":52791521247543,"sku":"PSW8.4D","price":124.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/4935\/0455\/files\/PSW8.4D-2000x2000_3000x_abe1299c-88be-434d-a5d7-267df147b4f1.webp?v=1785957803","url":"https:\/\/dbscaraudio.com\/es\/products\/ds18-psw8-4d-8-shallow-mount-subwoofer-450-watts-rms-dual-4-ohm","provider":"DB's Car Audio","version":"1.0","type":"link"}