Car Subwoofer

The Brands We Carry

Audio Intensity carries six subwoofer brands. Each brand fills a specific tier and use case in the catalog.

Prodigy: Entry to mid tier, engineered for real performance at accessible price points. The right pick for first-time subwoofer buyers, daily driver upgrades, and capable-system-on-a-budget builds. The NB2, NB3, and NB5 series cover the lineup. Proline X CNC enclosures are available spec-matched to Prodigy drivers, a combination that performs above its price point because the enclosure is built correctly for the driver.

Audiomobile: Mid to upper tier, built around T-shaped magnetic gap technology that reduces distortion at high excursion by maintaining a more linear magnetic field across the voice coil's travel range. The GTS, EVO, GT2, and Encore series cover entry through reference levels. Suited to builds where output quality and low distortion matter as much as output level.

Wavtech: Compact, high-excursion subwoofer designs optimized for installations where physical size is a constraint but output requirements aren't modest. The thinPRO line is purpose-built around shallow-mount constraints, delivering 750W RMS in 2.9 to 3 inch mounting depth. The right choice for truck behind-seat builds and SUV applications where available space is limited.

Crescendo: Competition-proven subwoofers with motor structures engineered for sustained high-power operation. The Revolution series is the right pick for high-output daily builds and competition systems where the subwoofer is pushed hard on a regular basis. Strong thermal management and robust construction.

Image Dynamics: Benchmark brand in sound quality competition since the early days of the SQ format. Engineered for accuracy, linearity, and musical bass reproduction at the reference level. The IDQ and IDMAX series remain among the most respected driver lines in the SQ community. The right choice for listeners who want the best possible bass quality regardless of output level.

Arc Audio: Audiophile-grade subwoofers with a focus on musical accuracy and tight cone control. The Arc, A-series, and X2V2 lines suit SQ-focused daily builds and integration with Arc Audio amplification. Driver-matched Proline X enclosures (Performance Optimized AX2 series) extract optimal performance from the matched driver.

Subwoofer Size Reference

Driver size is the most visible specification and the most consequential one for both performance and install fitment. Bigger drivers move more air for higher output and deeper extension, but only when the enclosure is sized to support them. Size selection should be driven by available enclosure volume first, listening goals second.

8 inch subwoofers: Compact installs where enclosure depth or volume is severely constrained. Underseat, behind-seat truck builds, motorcycles, powersports, and small sedan trunk applications. Fast transient response and clean integration with door speakers. Carried in Image Dynamics, Prodigy, Arc Audio, Audiomobile, and Proline X Driv 850.

10 inch subwoofers: The Goldilocks size class for most car audio buyers. Enough cone area for usable bass to 30-35Hz, compact enough to fit most sedan trunks and behind-seat truck installs. Carried in Image Dynamics IDQ and IDMAX, Prodigy NB2/NB3/NB5, Crescendo Revolution, Audiomobile EVO and GT2, Arc Audio A10 and X2V2, and the Sony XS-W104ES (closeout).

12 inch subwoofers: The most popular size for serious bass builds. Enough output for demanding listening at any volume, enclosure requirements that fit most vehicles. Carried in Image Dynamics IDMAX, Audiomobile EVO and Encore, Prodigy NB2/NB3/NB5, Wavtech thinPRO, Arc Audio A12 and X2V2.

15 inch subwoofers: Maximum cone area and deepest extension for buyers who specifically chose 15 over 12 because they need the SPL output that 12 inch can't deliver. Larger cabinet requirements and higher amplifier power. Carried in Audiomobile Encore.

The Proline X Enclosure Advantage

Every subwoofer brand in this collection can be paired with a Proline X enclosure built specifically for that driver. This is the differentiator that no other retailer offers. Not a generic box that approximates the right dimensions, but a CNC-manufactured enclosure calculated from the driver's actual Thiele-Small parameters and built to those specifications on a ShopSabre CNC router in Tullahoma, Tennessee.

Driver-matched enclosures are available in the Performance Optimized series (Arc Audio, Image Dynamics, Audiomobile, JL Audio fitments), Professional Series (Image Dynamics IDMAX, Audiomobile Encore, plus owner-supplied Skar, Sundown, Digital Design, Ground Zero), and Micro Series (Wavtech thinPRO, Alpine RSW, plus ResoNix GUS fitment). Loaded systems pair the driver with the matched enclosure, pre-installed and pre-wired.

If you're purchasing a subwoofer from this collection and want to know whether a Proline X enclosure is available for your specific driver, check the individual product page or contact us directly. A correctly matched enclosure is the difference between a subwoofer that performs as designed and one that doesn't.