SUBWOOFERS
Shop car audio subwoofers for daily driver systems, sound-quality builds, high-output SPL systems, competition setups, and complete car audio upgrades. Browse 6.5-inch, 8-inch, 10-inch, 12-inch, 15-inch, and 18-inch subwoofers across a wide range of power levels, voice-coil configurations, enclosure types, and system goals.
Whether you are upgrading factory bass, building a sealed or ported enclosure, adding deep low-frequency output, or designing a competition-level system, the right car subwoofer delivers the output, power handling, durability, and sound quality needed to maximize system performance.
Explore high-performance subwoofers from Down4Sound, Sundown Audio, DC Audio, Incriminator Audio, and other leading car audio brands.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
SUNDOWN AUDIO | M SERIES 8" SUBWOOFER | 800W RMS | 2 OHM
SUNDOWN AUDIO
MSRP: $839.99$349.99The Sundown Audio M-8 is the big brother to the SA-8 v.3 model. Both the coil diameter and winding width are increased in comparison, resulting in higher power handling and more linear x-max. It features a Mid-Q which results in excellent vented and...SW-M8D2MSRP: $839.99$349.99 -
SUNDOWN AUDIO | M SERIES 8" SUBWOOFER | 800W RMS | 4 OHM
SUNDOWN AUDIO
MSRP: $839.99$349.99The Sundown Audio M-8 is the big brother to the SA-8 v.3 model. Both the coil diameter and winding width are increased in comparison, resulting in higher power handling and more linear x-max. It features a Mid-Q which results in excellent vented and...SW-M8D4MSRP: $839.99$349.99Qty in Cart: 0Quantity:Price:MSRP: $839.99$349.99Subtotal: -
SUNDOWN AUDIO | XV4 18 INCH SUBWOOFER D2 | 3000W RMS SUBWOOFER
SUNDOWN AUDIO
$949.99The Sundown Xv4 18″ Subwoofer delivers unmatched power and control for serious bass enthusiasts. Built with high-grade X v.4 coils, this subwoofer is designed to handle up to 3000W RMS and 6000W peak power, ensuring maximum...SW-XV418D2$949.99 -
SUNDOWN AUDIO | XV4 18 INCH SUBWOOFER D1 | 3000W RMS SUBWOOFER
SUNDOWN AUDIO
$949.99The Sundown Xv4 18″ Subwoofer delivers unmatched power and control for serious bass enthusiasts. Built with high-grade X v.4 coils, this subwoofer is designed to handle up to 3000W RMS and 6000W peak power, ensuring maximum...SW-XV418D1$949.99 -
DOWN4SOUND | TCX 18" SUBWOOFER | 2700W RMS | D2
DOWN4SOUND
$999.99The DOWN4SOUND TCX 18” Subwoofer D2 is built for extreme output, heavy power handling, and clean low-end delivery. Featuring a 3" 8-layer flat aluminum voice coil, carbon fiber cone, stitched high-roll surround, and an oversized...TCX18D2$999.99 -
DOWN4SOUND | TCX 18" SUBWOOFER | 2700W RMS | D1
DOWN4SOUND
$999.99The DOWN4SOUND TCX 18” Subwoofer D2 is built for extreme output, heavy power handling, and clean low-end delivery. Featuring a 3" 8-layer flat aluminum voice coil, carbon fiber cone, stitched high-roll surround, and an oversized 5-stack Y35 ferrite...TCX18D1$999.99 -
SUNDOWN AUDIO | ZV7 | 18 " SUBWOOFER D1 | 3500W RMS
SUNDOWN AUDIO
MSRP: $1,679.99$1,469.99The Z v.7 is the third step up in Sundown's 2025 "ultra-high excursion" sub-woofer lineup after the M and X v.4 series. All models (12,15,18) feature our custom tooled and patented frames (US Patent Numbers D691597, D691598, and D741841) –...SW-ZV718D1MSRP: $1,679.99$1,469.99Qty in Cart: 0Quantity:Price:MSRP: $1,679.99$1,469.99Subtotal: -
SUNDOWN AUDIO | ZV7 | 18 " SUBWOOFER D2 | 3500W RMS
SUNDOWN AUDIO
MSRP: $1,679.99$1,469.99The Z v.7 is the third step up in Sundown's 2025 "ultra-high excursion" sub-woofer lineup after the M and X v.4 series. All models (12,15,18) feature our custom tooled and patented frames (US Patent Numbers D691597, D691598, and D741841) –...SW-ZV718D2MSRP: $1,679.99$1,469.99Qty in Cart: 0Quantity:Price:MSRP: $1,679.99$1,469.99Subtotal: -
SUNDOWN AUDIO | M SERIES 18" SUBWOOFER | 2000W RMS | 2 OHM
SUNDOWN AUDIO
MSRP: $839.99$699.994000w Peak / 2000w RMS Available in Dual 1 and Dual 2 Ohm Configurations Mega Roll Surround and Frame Etched All Black Backplate Quad Stack Magnet Structure Specifications RE (Ohms) 2.12 4.125 FS (Hz) 26.152 25...SW-M18D2MSRP: $839.99$699.99Qty in Cart: 0Quantity:Price:MSRP: $839.99$699.99Subtotal: -
SUNDOWN AUDIO | M SERIES 18" SUBWOOFER | 2000W RMS | 1 OHM
SUNDOWN AUDIO
MSRP: $839.99$699.994000w Peak / 2000w RMS Available in Dual 1 and Dual 2 Ohm Configurations Mega Roll Surround and Frame Etched All Black Backplate Quad Stack Magnet Structure Specifications RE (Ohms) 2.12 4.125 FS (Hz) 26.152 25...SW-M18D1MSRP: $839.99$699.99 -
DOWN4SOUND | DVX 18" SUBWOOFER | D4 | 1700W RMS
DOWN4SOUND
MSRP: $1,099.98$549.99The 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...DVX18D4MSRP: $1,099.98$549.99 -
DOWN4SOUND | DVX 18" SUBWOOFER | D2 | 1700W RMS
DOWN4SOUND
MSRP: $1,099.98$549.99The DOWN4SOUND DVX-18 D2 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...DVX18D2MSRP: $1,099.98$549.99