The best single cab 12-inch sub box depends on your truck’s behind-seat space, subwoofer count, and preferred enclosure style. The American Sound Connection single-sub enclosure is the closest match for a regular cab and one 12-inch subwoofer. The Q Power vented box suits buyers seeking a vented single-sub design, while the Harmony Audio package combines a 12-inch Kicker subwoofer with an enclosure and amplifier. Several other options below hold two subwoofers, so check dimensions and vehicle fit before choosing.
| Product | Best Suited For | Configuration |
|---|---|---|
| American Sound Connection ASC 112TRUCK | Regular cab and one 12-inch sub | Single sub enclosure |
| Q Power QBTRUCK112-VENTED | Vented single-sub setup | Single 12-inch enclosure |
| Harmony Audio Kicker C12 package | Buyers wanting subwoofer and amp included | Single 12-inch package |
| Q Power GM/Chevy enclosure | GM or Chevy single-cab owners considering two subs | Dual 12-inch enclosure |
| ASC Silverado/Sierra enclosure | 1988–2006 Silverado or Sierra owners considering two subs | Dual 12-inch enclosure |
American Sound Connection ASC 112TRUCK
This American Sound Connection enclosure is the most direct match for a regular standard-cab truck with one 12-inch subwoofer. Its listed design is intended for regular cab trucks, with a space-conscious fit and custom tuning intended to support the subwoofer’s performance. The manufacturer also describes durable construction and cleaner, more powerful bass.
Best for: Buyers who want a single-sub enclosure specifically described for regular cab trucks. It was selected because its stated configuration closely matches the search for a single-cab 12-inch sub box.
Limitation: The supplied product details do not provide enclosure dimensions or mounting depth. Confirm the enclosure and subwoofer clearances against your truck before ordering.
Q Power QBTRUCK112-VENTED
This Q Power enclosure holds one 12-inch subwoofer and uses a vented design. Its listed air space is 1.88 cubic feet, and it is described as a behind-seat enclosure for car and truck audio systems. The box is made from MDF and has a black bed-liner-style finish. The listing gives a 5-inch mounting depth and advises buyers to check vehicle fitment.
Best for: Buyers who want a vented single-sub box and have verified that the enclosure’s space and mounting depth work with their vehicle and subwoofer.
Limitation: The listing says it fits most truck cabs, not every cab. Do not assume it will fit your specific single cab without checking dimensions.
Harmony Audio Kicker C12 Package
This package is listed for a single 12-inch subwoofer in a regular standard-cab truck and includes a Kicker C12 Comp subwoofer with a Harmony Audio HA-A400.1 amplifier. The stated enclosure air space is 0.80 cubic feet, and the mounting depth is 5-3/4 inches. Those specifications help buyers compare it with their available space and subwoofer requirements.
Best for: Buyers seeking a bundled subwoofer, enclosure, and amplifier rather than a box alone. It was selected for its explicitly stated regular-cab application and single-sub configuration.
Limitation: Confirm the listed mounting depth and air space meet the needs of your installation. The provided details do not give full enclosure dimensions.
Q Power GM And Chevy Dual 12-Inch Box
This is a dual-sub enclosure, not a box for one 12-inch subwoofer. It is described for GM and Chevy single-cab trucks and installs behind the seat. Listed dimensions are 49 inches wide by 13 inches high, with a 5-inch top depth and 8-inch bottom depth. It has spring-loaded terminals, MDF construction, and a rugged bed-liner finish.
Best for: GM or Chevy single-cab owners who are considering two 12-inch subwoofers and want a shallow behind-seat layout.
Limitation: Avoid this option if you need a single-sub enclosure. Verify the dimensions and the stated vehicle application before purchase.
ASC Silverado And Sierra Dual 12-Inch Box
This American Sound Connection enclosure is designed for two 12-inch subwoofers and is listed for 1988–2006 Chevy Silverado and GMC Sierra regular-cab trucks. Its design accounts for a center console, aiming to preserve console function while using limited cab space. The product description highlights sturdy construction and bass reproduction from its dual-sub configuration.
Best for: Owners of the listed Silverado or Sierra model years who want a dual-sub setup with center-console integration.
Limitation: This is not a single-sub box and its listed vehicle range is specific. Check your exact cab layout and model year before selecting it.
Buying Guide: How To Choose A Single Cab 12-Inch Sub Box
Should you choose a sealed or vented enclosure?
The listed Q Power single-sub option is vented, while the ASC single-sub product details do not specify an enclosure style. A vented box has a ported design; compare its stated air space and mounting depth with the subwoofer manufacturer’s requirements. Do not select an enclosure based only on the word “12-inch,” because subwoofer fit also depends on mounting depth and required enclosure volume.
Will the box fit behind your truck seat?
Measure the available width, height, and depth in the cab, including seat movement and nearby consoles. Compare those measurements with the product’s listed dimensions. When dimensions are not supplied, request or locate them before buying rather than assuming “regular cab” guarantees a fit.
Do you need one subwoofer or two?
Choose a single-sub enclosure when installing one 12-inch subwoofer. Dual boxes can be useful for buyers planning two subs, but they are not direct substitutes for single-sub enclosures. Check that the enclosure’s intended sub count matches your audio plan.
What else should you check?
Verify subwoofer mounting depth, enclosure air space, terminal type, and vehicle application. A package that includes an amplifier and subwoofer may simplify component selection, while a box-only product lets you choose components separately. Confirm that the complete setup suits your available cab space.
Frequently Asked Questions
What is the best match for one 12-inch sub in a regular cab?
The American Sound Connection ASC 112TRUCK is the closest match in this list because it is described as a single 12-inch enclosure for regular standard-cab trucks.
Is the Q Power QBTRUCK112-VENTED a single-sub box?
Yes. Its product details describe a vented enclosure for one 12-inch subwoofer, with 1.88 cubic feet of air space and a 5-inch mounting depth.
Can a dual 12-inch enclosure hold just one subwoofer?
The listed dual enclosures are designed for two subwoofers. The provided product information does not establish that they are suitable for a one-sub installation.
Does “regular cab” guarantee a box will fit?
No. Cab dimensions, seat position, console layout, and enclosure size vary. Compare measurements and the listed vehicle application before buying.
What does mounting depth mean?
Mounting depth is the clearance needed for the subwoofer behind its mounting surface. Compare the enclosure’s available depth with the subwoofer’s required depth before installation.