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.
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DOWN4SOUND | DBZ 18" SUBWOOFER | 1300W RMS | D4
DOWN4SOUND
MSRP: $699.98$349.99The DOWN4SOUND DBz-18 D4 is engineered for listeners who want massive bass output, rugged construction, and unbeatable value. With a true 1300W RMS rating, this 18-inch subwoofer delivers deep, aggressive low-frequency performance suited for daily-driven...DBz18D4MSRP: $699.98$349.99 -
DOWN4SOUND | DBZ 18" SUBWOOFER | 1300W RMS | D2
DOWN4SOUND
MSRP: $699.98$349.99Meet the DOWN4SOUND DBz 18″ Subwoofer—the ultimate budget banger built for enthusiasts who want serious low-end authority without lighting their wallet on fire. Rated at a true 1300W RMS, this 18-inch monster delivers deep, room-shaking bass...DBz18D2MSRP: $699.98$349.99 -
SUNDOWN AUDIO | NIGHTSHADE V.6 18" SUBWOOFER | 3500W RMS | D1
SUNDOWN AUDIO
MSRP: $1,835.99$1,099.99Sundown Audio NS v6 18" D1 - 3000W RMS Subwoofer Experience the pinnacle of audio performance with the SUNDOWN AUDIO Nightshade v.6 18" Subwoofer. This high-powered, dual voice coil, 1-ohm subwoofer is designed for audiophiles who demand superior sound...SW-NSV618D1MSRP: $1,835.99$1,099.99Qty in Cart: 0Quantity:Price:MSRP: $1,835.99$1,099.99Subtotal: -
SUNDOWN AUDIO | NIGHTSHADE V.6 18" SUBWOOFER | 3500W RMS | D2
SUNDOWN AUDIO
MSRP: $1,835.99$1,099.99Sundown Audio NS v6 18" D2 - 3000W RMS Subwoofer Experience the pinnacle of audio performance with the SUNDOWN AUDIO Nightshade v.6 18" Subwoofer. This high-powered, dual voice coil, 2-ohm subwoofer is designed for audiophiles who demand superior sound...SW-NSV618D2MSRP: $1,835.99$1,099.99Qty in Cart: 0Quantity:Price:MSRP: $1,835.99$1,099.99Subtotal: -
SUNDOWN AUDIO | X SERIES V.3 18" | 2500W RMS | D2
SUNDOWN AUDIO
MSRP: $959.99$849.99X-Series v.3 18" Subwoofer RMS 2000 watts Dual 1 or 2 ohm voice coil Made for extremely deep bass Triple-stacked magnet 3” voice coil Hyper-extended pole Designed with an extended pole piece and an incredible four inches of...SW-XV318D2MSRP: $959.99$849.99 -
SUNDOWN AUDIO | X SERIES V.3 18" | 2500W RMS | D1
SUNDOWN AUDIO
MSRP: $959.99$849.99X-Series v.3 18" Subwoofer RMS 2000 watts Dual 1 or 2 ohm voice coil Made for extremely deep bass Triple-stacked magnet 3” voice coil Hyper-extended pole Designed with an extended pole piece and an incredible four inches of...SW-XV318D1MSRP: $959.99$849.99 -
SUNDOWN AUDIO | SA V2 18" SUBWOOFER | 1250W RMS | D2
SUNDOWN AUDIO
MSRP: $599.99$499.99Sundown Audio SA 18 D2 | Sundown Audio 18 SA v.2 18 Dual 2 ohm | 1000w RMS Version 2 Subwoofer Since 2009, the Sundown SA series has been our most popular line. What better way to make a new version 2 than to upgrade everything? Using a...SW-SAV218D2MSRP: $599.99$499.99 -
SUNDOWN AUDIO | SA V2 18" SUBWOOFER | 1250W RMS | D4
SUNDOWN AUDIO
MSRP: $599.99$499.99Sundown Audio SA 18 | Sundown Audio 18 SA v.2 18 Dual 4 ohm | 1000w RMS Version 2 Subwoofer Since 2009, the Sundown SA series has been our most popular line. What better way to make a new version 2 than to upgrade everything? Using a larger, more...SW-SAV218D4MSRP: $599.99$499.99