Best Sub Boxes For Single Cab Trucks: Compare 10 Options

Best Sub Boxes For Single Cab Trucks

A strong single-cab sub box adds bass while fitting behind or beneath a tight truck seat, and the right choice depends on your subwoofer, available space, and desired enclosure style. The Q Power QBTRUCK112 Vented Sub Box leads this lineup with a truck-style behind-seat design, a 12-inch opening, and 1.88 cubic feet of air space. Other options range from compact angled and sealed enclosures to dual-sub boxes and bundles that include subwoofers or an amplifier.

Fit is not universal just because a listing says truck: one box is made specifically for certain Silverado and Sierra model years, while others give dimensions or call out regular-cab compatibility. Check your cab’s usable space, sub mounting depth, and enclosure requirements before ordering.

This guide compares the listed specifications and clarifies where each format makes sense.

The Q Power QBTRUCK112 Vented Sub Box is the leading choice for a single-cab truck buyer seeking a dedicated behind-seat enclosure. It holds one 12-inch subwoofer and lists 1.88 cubic feet of air space, more than the listed air-space figures for the other enclosures here. Its vented design differs from the sealed options, so it suits shoppers specifically considering a ported box.

Confirm its 5-inch mounting detail against your subwoofer and measure behind the seat before buying; universal-fit wording does not replace a vehicle-specific fit check.

Our Top Picks

Q Power QBTRUCK112 Vented Sub BoxBest Overall

Q Power QBTRUCK112 Vented Sub Box

Its truck-style behind-seat design holds one 12-inch sub and lists 1.88 cubic feet of air space, with a black bed liner finish.

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Rockville RD12-T Dual 12 BoxDual 12-Inch Fit

Rockville RD12-T Dual 12 Box

Designed for behind-seat single-cab installation, it holds two shallow-mount 12-inch subs and lists a 49-inch-wide footprint.

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Belva 1TRUCK12 Angled BoxAngled Space Saver

Belva 1TRUCK12 Angled Box

Its angled design targets tight truck spaces, with 0.75 cubic feet of air space, 5/8-inch MDF, and pre-lined polyfill.

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Compare sub boxes for single-cab truck installations

#ProductSpeaker SizeAudio Driver SizeCompatible DevicesWarranty TypeBuy
112 in12 inLaptop, Smartphone, Tablet, Television—View on Amazon
212 in12 in——View on Amazon
312 in12 inDesktop, Gaming Console, Home TheaterLimitedView on Amazon
410 in10 inVehicle Audio System—View on Amazon
5
ASC 112TRUCK Single 12 Box5. ASC 112TRUCK Single 12 BoxRegular-cab single-12 box
12 in12 inSmartphone, Tablet, MP3 Player, Desktop…Limited or ExtendedView on Amazon
6
ASC 112TRUCK-RL Rhino-Coated Box6. ASC 112TRUCK-RL Rhino-Coated BoxRhino-coated regular-cab box
————View on Amazon
7
KICKER Comp C12 Loaded Box7. KICKER Comp C12 Loaded BoxSingle-12 KICKER truck bundle
12 in12 inTruckLimitedView on Amazon
8
KICKER Comp C10 Loaded Box8. KICKER Comp C10 Loaded BoxLoaded single-10 KICKER setup
10 in10 inTruckLimitedView on Amazon
912 in12 inTruckLimitedView on Amazon
10
Subthump Silverado Dual 10 Box10. Subthump Silverado Dual 10 BoxSilverado Sierra amp-shelf fit
10 in10 inCar StereoLimitedView on Amazon

Detailed Reviews: Best Sub Boxes For Single Cab Trucks

Q Power QBTRUCK112 Vented Sub Box

#1 · Best Overall

1. Q Power QBTRUCK112 Vented Sub Box

  • Speaker Size: 12 in
  • Audio Driver Size: 12 in
  • Compatible Devices: Laptop, Smartphone, Tablet, Television

Best for: Vented single-12 cab bass.

Why it ranks #1: Its truck-style behind-seat design holds one 12-inch sub and lists 1.88 cubic feet of air space, with a black bed liner finish.

A 1.88-cubic-foot vented enclosure gives this Q Power box its defining advantage: a ported setup for a single 12-inch subwoofer in a truck-style, behind-seat installation. Its universal-fit positioning targets cab owners who want substantial bass from one driver, with a black bed-liner finish on the MDF enclosure.

The vented design and stated 1.88 cubic feet of air space support the product’s deep-bass focus, while the single 12-inch opening keeps the setup centered on one subwoofer. Q Power says the compact, behind-seat enclosure fits most truck cabs, making it relevant where cabin room is limited. Premium MDF and a black bed-liner finish provide the listed enclosure construction and surface treatment; the product does not include a subwoofer in the supplied description.

Pros
  • Vented enclosure for a single 12-inch subwoofer
  • 1.88 cubic feet of stated air space
  • Truck-style behind-seat installation
  • MDF construction with black bed-liner finish
Cons
  • Subwoofer is not included in the supplied product description.

Skip it if you need a loaded enclosure rather than a box for your own sub; the KICKER 43C104-N includes a 10-inch Comp C subwoofer.

This suits a truck owner seeking a vented single-12 enclosure and willing to supply a compatible subwoofer. Its behind-seat format is intended for truck cabs, but check the cab’s available space against the enclosure before installation.

Full product details
BrandQ Power
Audio Driver Size12 inches
ColorBlack
Compatible DevicesLaptop, Smartphone, Tablet, Television
ManufacturerQPower
ModelQBTRUCK112V
Model NumberQBTRUCK112V
Speaker Size12 inches
Additional InformationImportant Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

Listed on Amazon as: QPower QBTRUCK112-VENTED Single 12-Inch Vented Subwoofer Box

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Rockville RD12-T Dual 12 Box

#2 · Dual 12-Inch Fit

2. Rockville RD12-T Dual 12 Box

  • Speaker Size: 12 in
  • Audio Driver Size: 12 in

Best for: Dual-12 shallow-mount cab box.

Why it ranks #2: Designed for behind-seat single-cab installation, it holds two shallow-mount 12-inch subs and lists a 49-inch-wide footprint.

A 49-inch-wide, behind-seat footprint makes the Rockville RD12-T a dual-12 enclosure specifically aimed at single-cab trucks. Its sealed chambers are intended for shallow-mount 12-inch subwoofers, while 3/4-inch Grade A MDF and precision-cut construction support the stated durability and distortion-control goals.

The 49-by-13.25-by-8-inch footprint gives a single-cab owner dimensions to compare with the space behind the seat before installing two drivers. Its sealed chambers are optimized for shallow-mount 12-inch subwoofers, making driver depth an important compatibility point. Rockville specifies 3/4-inch Grade A MDF, with precision cuts and durable glue construction, to support the enclosure’s clear, powerful-bass focus. The sealed dual-driver format keeps the installation self-contained behind the seat rather than requiring separate enclosures.

Pros
  • Accommodates two 12-inch subwoofers
  • Sealed chambers for shallow-mount drivers
  • 49-by-13.25-by-8-inch listed footprint
  • 3/4-inch Grade A MDF construction
Cons
  • It is specified for shallow-mount 12-inch subwoofers.

Skip it if you are fitting 10-inch drivers; the Rockville RD10-T is the brand's sealed dual-10 behind-seat option.

Pick this for a single-cab owner planning two shallow-mount 12-inch subs in a sealed behind-seat enclosure. Measure against the 49-by-13.25-by-8-inch footprint and verify the selected drivers suit its shallow-mount specification.

Full product details
BrandRockville
Audio Driver Size12 inches
ManufacturerRockville
ModelRD12-T
Model NumberRD12-T
Speaker Size12 inches
Special FeatureDurable

Listed on Amazon as: Rockville RD12-T Dual 12" Sealed Behind Seat Truck Subwoofer Enclosure

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Belva 1TRUCK12 Angled Box

#3 · Angled Space Saver

3. Belva 1TRUCK12 Angled Box

  • Speaker Size: 12 in
  • Audio Driver Size: 12 in
  • Compatible Devices: Desktop, Gaming Console, Home Theater
  • Warranty Type: Limited

Best for: Angled shallow-space single-12.

Why it ranks #3: Its angled design targets tight truck spaces, with 0.75 cubic feet of air space, 5/8-inch MDF, and pre-lined polyfill.

An angled profile lets the Belva 1TRUCK12 target tight installations in single-cab trucks, extended cabs, and hatchbacks while housing a 12-inch subwoofer. Its 0.75-cubic-foot air space and pre-installed polyfill define the acoustic setup, and the 5/8-inch MDF construction is specified to reduce vibration and distortion.

The 8.5-by-18.25-by-14.25-inch dimensions give buyers concrete measurements for checking a tight truck or hatchback installation. An angled enclosure helps use constrained space, while the stated 0.75 cubic feet of air space provides a defined volume for a single 12-inch driver. Pre-lined polyfill is included to improve bass response and internal airflow and resonance, according to the supplied features. The 5/8-inch MDF is specified to minimize vibration and distortion, supporting the enclosure’s sound-quality focus.

Pros
  • Angled enclosure for truck, extended-cab, and hatchback use
  • Fits a 12-inch subwoofer
  • Pre-lined with polyfill
  • 0.75 cubic feet of air space
Cons
  • The 0.75-cubic-foot enclosure is a single-subwoofer format, not a dual-12 box.

Skip it if you need two 12-inch subwoofer spaces; the Rockville RD12-T is a dual-12 behind-seat enclosure.

This suits a buyer fitting one 12-inch subwoofer into a tight truck, extended-cab, or hatchback space. Use the listed dimensions to check clearance, and choose another enclosure if your plan requires two drivers.

Full product details
BrandBELVA
Audio Driver Size12 inches
Colorblack
Compatible DevicesDesktop, Gaming Console, Home Theater
Compatible with Vehicle TypeTruck, Hatchback
Enclosure MaterialWood
Dimensions8.5"D x 18.25"W x 14.25"H
ManufacturerBELVA
MaterialWood
Model1TRUCK12
Model Number8542137063
Speaker Size12 inches
Warranty TypeLimited

Listed on Amazon as: Belva 1TRUCK12 Single 12" Angled Truck or Hatchback Subwoofer Box Enclosure – CARB Compliant 5/8" MDF Shallow Sub Box with Polyfil, 0.75 CuFt Air Space, Black Carpeted Finish

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Rockville RD10-T Dual 10 Box

#4 · Dual 10-Inch Fit

4. Rockville RD10-T Dual 10 Box

  • Speaker Size: 10 in
  • Audio Driver Size: 10 in
  • Compatible Devices: Vehicle Audio System

Best for: Dual-10 sealed cab enclosure.

Why it ranks #4: This sealed enclosure is designed behind single-cab seats and offers two 10-inch openings with 0.85 cubic feet per sub.

Two sealed 10-inch chambers make the Rockville RD10-T a dual-driver option for single-cab owners who want bass without giving up the behind-seat area. Each sub gets 0.85 cubic feet of net airspace, while the enclosure’s 3/4-inch Grade A MDF construction targets tight, accurate bass.

The sealed design and separate 0.85-cubic-foot net airspace per sub give each 10-inch driver a defined enclosure volume, supporting the product’s stated focus on tight, accurate bass. Its compact behind-seat format is intended for single-cab trucks, preserving the cabin area for occupants and cargo. Rockville lists 3/4-inch Grade A MDF and reinforced glue, staples, and silicone seams; these construction details support a solid enclosure for vehicle audio use. It is made in the USA.

Pros
  • Holds two 10-inch subwoofers
  • Sealed design with 0.85 cubic feet per sub
  • 3/4-inch Grade A MDF construction
  • Behind-seat format for single-cab trucks
Cons
  • The enclosure is for 10-inch drivers, not 12-inch subwoofers.

Skip it if you want two 12-inch drivers instead; the Rockville RD12-T is the same brand's dual-12 behind-seat enclosure.

This fits a single-cab owner choosing a sealed dual-10 setup and prioritizing behind-seat placement. Its listed airspace is per sub, so match each driver to the enclosure’s 10-inch format and sealed configuration.

Full product details
BrandRockville
Audio Driver Size10 inches
Compatible DevicesVehicle Audio System
ManufacturerRockville
ModelRD10-T
Model NumberRD10-T
Speaker Size10 inches
Special FeatureDurable

Listed on Amazon as: Rockville RD10-T Dual 10" Sealed Behind Seat Truck Subwoofer Enclosure

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ASC 112TRUCK Single 12 Box

#5

5. ASC 112TRUCK Single 12 Box

  • Speaker Size: 12 in
  • Audio Driver Size: 12 in
  • Compatible Devices: Smartphone, Tablet, MP3 Player, Desktop…
  • Warranty Type: Limited or Extended

Best for: Regular-cab single-12 box.

Why it ranks #5: Made for regular-cab trucks, this single-12 enclosure uses precision-cut MDF that is nailed, liquid-nailed, sealed, and carpet-wrapped.

The ASC 112TRUCK is specifically described as a single-12 enclosure for regular-cab trucks, addressing the space challenge of adding bass in a compact cab. Its precision-cut MDF panels are nailed, liquid-nailed, sealed, and covered with carpet, giving buyers a finished enclosure built around conventional truck audio installation.

A single 12-inch format focuses the setup on one driver, and the manufacturer states that the enclosure fits any regular-cab truck. Precision-cut MDF panels are liquid-nailed, nailed, and completely sealed, a construction approach that supports a sturdy enclosure for car-audio use. High-quality carpet gives the box a finished surface intended to match many vehicle interiors. The listed dimensions are 7.5 inches deep by 15 inches high; width is not supplied, so space planning needs that constraint considered.

Pros
  • Specified for regular-cab truck installation
  • Single 12-inch subwoofer enclosure
  • Precision-cut MDF construction
  • Sealed and carpet-wrapped enclosure
Cons
  • The supplied dimensions omit the enclosure's width.

Skip it if you want a protective Rhino Coat finish; the American Sound Connection 112TRUCK-RL uses that surface treatment.

Choose this for a regular-cab truck owner who wants a carpeted, sealed single-12 box with MDF construction. Its listed depth and height help with planning, but the missing width means you will need another source for that measurement.

Full product details
BrandAmerican Sound Connection
Audio Driver Size12 inches
ColorSingle
Compatible DevicesSmartphone, Tablet, MP3 Player, Desktop, Television, Projector, Laptop
Compatible with Vehicle TypeTruck
Enclosure MaterialWood, Fabric
Dimensions7.5"D x 15"H
Item Weight11.6 pounds
ManufacturerAmerican Sound Connection
MaterialWood, Fabric
Model112TRUCK
Model Number112TRUCK
Speaker Size12 inches
Warranty TypeLimited or Extended
Additional InformationImportant Information Proposition 65 Warning for California Consumers WARNING: This product can expose you to chemicals including formaldehyde (gas) which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov

Listed on Amazon as: Single 12 Inch Truck Sub Box Regular Cab Subwoofer Enclosure 5/8" MDF ASC

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ASC 112TRUCK-RL Rhino-Coated Box

#6

6. ASC 112TRUCK-RL Rhino-Coated Box

Best for: Rhino-coated regular-cab box.

Why it ranks #6: Its single 12-inch enclosure is described for regular standard truck cabs and uses precision-cut MDF with a Rhino Coat finish.

A Rhino Coat exterior distinguishes this American Sound Connection single-12 enclosure, giving regular-cab truck owners a different finished surface from the brand’s carpet-wrapped box. The manufacturer describes it as a sealed, precision-cut MDF enclosure with panels that are liquid-nailed, nailed, and completely sealed for truck audio use.

The single-12 format is presented for regular standard-cab trucks, making the enclosure a focused option for adding one subwoofer in a compact cab. Precision-cut MDF panels are liquid-nailed, nailed, and completely sealed, details that support the box’s stated durable construction. Its Rhino Coat covering provides the specified exterior finish and is described as matching many vehicle interiors. No dimensions or airspace figure are provided in the supplied facts, so those details cannot guide space or driver-volume planning here.

Pros
  • Single-12 enclosure for regular-cab trucks
  • Sealed enclosure format
  • Precision-cut MDF construction
  • Rhino Coat exterior finish
Cons
  • The supplied product facts provide no enclosure dimensions or airspace figure.

Skip it if you need listed dimensions for space planning; the KICKER 43C104-N gives enclosure dimensions and a mounting-depth specification.

Consider this for a regular-cab owner seeking a sealed single-12 MDF enclosure with a Rhino Coat finish. The supplied information does not state its dimensions or airspace, so those figures are an important boundary for installation planning.

Full product details
BrandAmerican Sound Connection
Chassis Size‎Sealed
Item model number‎112TRUCK-RL

Listed on Amazon as: Rhino-Coated Truck Sub Box Single 12" Standard Cab Subwoofer Enclosure ASC

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KICKER Comp C12 Loaded Box

#7

7. KICKER Comp C12 Loaded Box

  • Speaker Size: 12 in
  • Audio Driver Size: 12 in
  • Compatible Devices: Truck
  • Warranty Type: Limited

Best for: Single-12 KICKER truck bundle.

Why it ranks #7: This bundle includes a single 12-inch Kicker sub and sealed enclosure with 0.80 cubic feet of air space and 150 watts RMS.

A 12-inch KICKER Comp C subwoofer is included with this single-driver truck enclosure, giving standard-cab buyers a bundled sealed setup rather than a box alone. The sub is rated at 150 watts RMS, and the enclosure provides 0.80 cubic feet of air space with 5-3/4 inches of mounting depth.

The package pairs a sealed enclosure with a 12-inch, 4-ohm KICKER Comp C subwoofer, so buyers have both the box and driver for a single-sub installation. Its 0.80 cubic feet of air space and 5-3/4-inch mounting depth offer useful figures for checking subwoofer and enclosure requirements. The listed enclosure measures 7.5 inches deep, 20 inches wide, and 15 inches high, giving standard-cab owners dimensions to compare with their available installation area.

Pros
  • Includes a 12-inch KICKER Comp C subwoofer
  • Sealed enclosure with 0.80 cubic feet of air space
  • Subwoofer rated at 150 watts RMS
  • 5-3/4-inch mounting depth
Cons
  • The package is for a single 12-inch subwoofer, not a dual-driver setup.

Skip it if you want two 12-inch drivers; the Harmony Audio Kicker Comp C12 package includes a dual-12 enclosure and two subs.

Choose this for a standard-cab owner wanting a single 12-inch KICKER subwoofer and sealed enclosure in one package. Check the 20-by-15-inch enclosure dimensions and mounting depth against the planned cab location.

Full product details
BrandKICKER
Audio Driver Size12 inches
Colorgray
Compatible DevicesTruck
Compatible with Vehicle TypeTruck
Dimensions7.5"D x 20"W x 15"H
ManufacturerKicker
Model43C124 N
Model Number43C124 N
Speaker Size12 inches
Warranty TypeLimited

Listed on Amazon as: KICKER 43C124-N Bundle Universal Regular Standard Cab Truck Comp C12 Single 12" Sub Box Enclosure – Final 4 Ohm

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KICKER Comp C10 Loaded Box

#8

8. KICKER Comp C10 Loaded Box

  • Speaker Size: 10 in
  • Audio Driver Size: 10 in
  • Compatible Devices: Truck
  • Warranty Type: Limited

Best for: Loaded single-10 KICKER setup.

Why it ranks #8: A single 10-inch Kicker sub comes in a sealed 0.8-cubic-foot enclosure, with 150 watts RMS and a listed 5-3/4-inch mounting depth.

A bundled 10-inch KICKER Comp C subwoofer and sealed enclosure make this a ready-matched single-driver option for a standard-cab truck. The enclosure provides 0.8 cubic feet of air space and 5-3/4 inches of mounting depth, while the included subwoofer is rated at 150 watts RMS.

Because the package includes both the enclosure and a 10-inch, 4-ohm Comp C subwoofer, buyers can start with a matched single-driver setup rather than sourcing those pieces separately. The sealed 0.8-cubic-foot box supplies the stated airspace, and its 5-3/4-inch mounting depth is a practical clearance figure for installation planning. The listed enclosure dimensions are 7.5 inches deep, 20 inches wide, and 15 inches high, useful when checking standard-cab space before fitting.

Pros
  • Includes a 10-inch KICKER Comp C subwoofer
  • Sealed enclosure with 0.8 cubic feet of air space
  • Subwoofer rated at 150 watts RMS
  • 5-3/4-inch mounting depth
Cons
  • The included subwoofer is 10 inches, limiting this bundle to a single-10 setup.

Skip it if you want a single 12-inch KICKER driver; the KICKER 43C124-N bundle includes a 12-inch Comp C subwoofer.

This suits a standard-cab owner who wants a KICKER single-10 sub and sealed box in one package. Check the 20-by-15-inch enclosure dimensions and 5-3/4-inch mounting depth against the intended installation space.

Full product details
BrandKICKER
Audio Driver Size10 inches
Colorgray
Compatible DevicesTruck
Compatible with Vehicle TypeTruck
Enclosure MaterialWood, Fabric
Dimensions7.5"D x 20"W x 15"H
ManufacturerKicker
Model43C104 N
Model Number430104
Speaker Size10 inches
Warranty TypeLimited

Listed on Amazon as: KICKER 43C104-N Comp C10 Loaded Single 10 Inch Truck Sub Box Bundle 4 Ohm

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Harmony Audio Kicker Dual 12 Bundle

#9 · Complete Audio Bundle

9. Harmony Audio Kicker Dual 12 Bundle

  • Speaker Size: 12 in
  • Audio Driver Size: 12 in
  • Compatible Devices: Truck
  • Warranty Type: Limited

Best for: Dual-12 complete audio package.

Why it ranks #9: The regular-cab package includes two 12-inch Kicker subs, an amplifier, and a 4-gauge amp kit alongside its MDF enclosure.

This Harmony Audio package combines a dual-12 enclosure, two KICKER Comp C12 subwoofers, and a mono amplifier, giving regular-cab buyers multiple core audio components together. Each sub has 0.96 cubic feet of air space, and the enclosure’s stepped depth is listed as 4-1/2 to 8 inches.

The included enclosure and two 12-inch KICKER drivers provide a dual-sub arrangement, while the listed 0.96 cubic feet per sub specifies the space allocated to each driver. An included Harmony Audio HA-A800.1 Class D mono amplifier and 4-gauge amp kit add amplification and wiring components to the package, reducing separate component selection. Its 49-by-14.5-inch width and height, plus 4.5-to-8-inch stepped depth, give regular-cab owners measurements for checking behind-seat placement.

Pros
  • Includes a dual-12 enclosure and two KICKER Comp C12 subs
  • 0.96 cubic feet of air space per sub
  • Includes a Class D mono amplifier
  • Includes a 4-gauge amp kit
Cons
  • The 49-inch-wide enclosure requires substantial behind-seat space.

Skip it if you only need an enclosure and already have audio components; the Rockville RD12-T is a dual-12 box without a listed amplifier bundle.

This package suits a regular-cab owner seeking two 12-inch subs, an enclosure, an amplifier, and an amp kit together. Its 49-inch width and stepped depth make available behind-seat space a key fit consideration.

Full product details
BrandHarmony Audio
Audio Driver Size12 inches
ColorGray
Compatible DevicesTruck
Compatible with Vehicle TypeTruck
Enclosure MaterialMdf
Input Voltage14.4 volts
Dimensions8"D x 49"W x 14.5"H
ManufacturerHarmony Audio
Model16-PACK1820-H
Model NumberKICKER16-PACK1820-H
Speaker Size12 inches
Warranty TypeLimited
Additional InformationImportant Information Proposition 65 Warning for California Consumers WARNING: This product can expose you to chemicals including formaldehyde (gas) which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov

Listed on Amazon as: Kicker Comp C12 Dual 12" Sub Box HA-A800.1 Amp Fits Regular Cab Trucks

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Subthump Silverado Dual 10 Box

#10

10. Subthump Silverado Dual 10 Box

  • Speaker Size: 10 in
  • Audio Driver Size: 10 in
  • Compatible Devices: Car Stereo
  • Warranty Type: Limited

Best for: Silverado Sierra amp-shelf fit.

Why it ranks #10: It fits two 10-inch subs and provides an amp shelf, but its stated fit is limited to 1999–2006 Chevy Silverado and GMC Sierra regular cabs.

Vehicle-specific fit is the key feature of this Subthump box: it is made for 1999–2006 Chevy Silverado and GMC Sierra regular-cab trucks. The sealed enclosure holds two 10-inch subs and incorporates an 18-by-13-inch amp shelf, combining subwoofer space and amplifier placement in one drop-in unit.

The specified Silverado and Sierra model-year range gives buyers a clear vehicle application, and the product states that no vehicle modifications are required for installation. Two 10-inch mounting positions use 0.85 cubic feet per speaker, while the 6.25-inch mounting depth helps check driver clearance. The integrated 18-by-13-inch amp shelf provides a designated place for an amplifier, keeping that component alongside the enclosure. Installed speaker terminals and a charcoal-gray carpet finish round out the listed setup details.

Pros
  • Fits 1999–2006 Silverado and Sierra regular cabs
  • Holds two 10-inch subwoofers
  • 18-by-13-inch amplifier shelf
  • No vehicle modifications required, according to the listing
Cons
  • Vehicle fit is limited to 1999–2006 Chevy Silverado and GMC Sierra regular cabs.

Skip it if you have a different truck make or year; the KICKER 43C104-N is described as a universal regular standard-cab bundle.

This is for an owner of a 1999–2006 Silverado or Sierra regular cab who wants dual 10s and a dedicated amp shelf. Its vehicle-specific fit is the central boundary, despite the stated no-modification installation.

Full product details
BrandSubthump
Audio Driver Size10 inches
ColorCharcoal Gray
Compatible DevicesCar Stereo
Compatible with Vehicle TypeTruck
Enclosure MaterialMetal
Input Voltage12 volts_of_direct_current
Dimensions18"D x 18"H
ManufacturerSubthump
ModelDual 10 with Amp Space Sub Box
Model NumberGMRE-210Amp
Speaker Size10 inches
Warranty TypeLimited

Listed on Amazon as: Subthump Dual 10 with Amp Space Sub Box-Fits 99-06 Chevy Silverado/GMC Sierra Regular Cab

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Avoid the behind-seat fit trap

A box described as universal or truck-compatible can still fail to fit your cab or subwoofer, so verify measurements and model compatibility before ordering. The Rockville RD12-T lists a 49-inch length, 13.25-inch height, and 8-inch depth; compare those dimensions with the actual space behind your seat. The Subthump Dual 10 Box is a sharper compatibility trap: its stated fit is for 1999–2006 Chevy Silverado and GMC Sierra regular cabs, not every single-cab truck.

Mounting depth matters too. The Q Power listing includes a 5-inch mounting detail, while the KICKER bundles list 5-3/4 inches, and the Subthump lists 6.25 inches.

Check your chosen sub’s mounting depth against the enclosure opening and internal clearance. Also confirm whether your truck’s seat, trim, and any existing equipment reduce usable space; the supplied listings do not establish fit for every cab configuration.

Choose enclosure style with installation in mind

A vented box and a sealed box are different enclosure formats, and choosing between them means matching the box to your subwoofer and installation goals. The Q Power enclosure is vented and lists 1.88 cubic feet of air space; several alternatives are explicitly sealed, including the Rockville RD12-T and KICKER bundles. Don’t treat a larger listed volume as an automatic guarantee of better sound: the products vary in speaker count, enclosure type, and stated air-space figures, so those numbers are not direct equivalents.

The sealed Rockville RD10-T lists 0.85 cubic feet per sub, and the Subthump lists the same per-speaker volume for two 10-inch subs. The Belva is an angled, shallow-style option with 0.75 cubic feet and polyfill.

Verify that your selected subwoofer is intended for the enclosure type and air-space range before installation; the product data here does not supply every subwoofer’s enclosure requirements.

How to Choose a Single-Cab Sub Box

Behind-seat fit and dimensions

Look for a box whose stated dimensions leave room for the seat to move and for the enclosure to sit securely. The Rockville RD12-T lists a 49-inch width, 13.25-inch height, and 8-inch depth, while the Belva lists 8.5 by 18.25 by 14.25 inches. The KICKER single-sub bundles list 7.5-inch depth and 20-inch width.

Those figures describe different designs and capacities, so compare them with your measured cab space rather than choosing by width alone. A truck owner with a narrow gap may prefer an angled or compact single-sub format such as Belva; buyers with verified space for a long enclosure can consider the Rockville dual-12.

Measure around seat brackets and trim, which can affect available room.

Subwoofer size and mounting depth

Match the enclosure’s speaker size and mounting depth to the actual subwoofer you plan to install. The choices include single 10- and 12-inch boxes, dual 10-inch and dual 12-inch designs, and bundles with subwoofers already included. Listed depths range from the Q Power’s 5-inch mounting detail to 5-3/4 inches for the KICKER bundles and 6.25 inches for the Subthump.

These figures should not be assumed to guarantee clearance for every sub of the matching nominal size; check the specific driver’s dimensions and the enclosure’s opening. A buyer who already owns a shallow-mount 12-inch sub may consider the Rockville RD12-T, while someone wanting a supplied driver can look at a KICKER bundle.

Confirm the box’s count and fit before purchase.

Enclosure style and air space

Check whether the enclosure is vented or sealed and whether its stated air space suits your intended subwoofer. The Q Power is vented and lists 1.88 cubic feet; the Belva lists 0.75 cubic feet, and the KICKER single-sub boxes list 0.8 cubic feet sealed. The Rockville RD10-T lists 0.85 cubic feet per sub, while the Subthump gives the same per-speaker volume for its dual-10 sealed design.

Those values are not directly interchangeable: they differ by enclosure style and whether the figure applies to one or more drivers. A shopper seeking a vented box can focus on Q Power; someone whose chosen sub calls for a sealed enclosure can compare the sealed options.

Verify the manufacturer’s enclosure-volume guidance for your subwoofer before settling on a box.

Which Sub Box Fits Your Single-Cab Setup?

For a single-cab truck owner seeking a vented 12-inch enclosure, choose the Q Power QBTRUCK112 Vented Sub Box: its truck-style behind-seat design and 1.88 cubic feet of air space set it apart. If you need room for two shallow-mount 12-inch subs and have verified 49 inches of width, consider the Rockville RD12-T Dual 12 Box. For a tight installation, the angled Belva 1TRUCK12 Angled Box offers a compact single-12 format with 0.75 cubic feet and polyfill.

Buyers who prefer two 10-inch subs can compare the Rockville RD10-T Dual 10 Box. Want a ready-to-install single-sub bundle?

The KICKER Comp C12 Loaded Box includes a 12-inch sub. Choose the Subthump only if your truck is a specified 1999–2006 Silverado or Sierra regular cab.

Frequently Asked Questions

How do I measure behind my single-cab seat before choosing a sub box?

Measure the available width, height, and depth behind the seat, including any taper or obstruction that reduces usable space. Check the seat in its normal driving position and allow room for the enclosure and its connections. Compare those measurements with the box dimensions, and verify fit in your specific truck before buying.

Should I choose a sealed or vented subwoofer enclosure for my truck?

Choose based on your subwoofer’s requirements and the kind of enclosure you want to install. Sealed and vented designs differ, so confirm that your subwoofer is compatible with the enclosure type. The listed Q Power QBTRUCK112 is vented; the listed Rockville RD10-T and RD12-T boxes are sealed.

Check the product details before deciding.

How can I check whether my subwoofer’s mounting depth and air-space needs match a box?

Compare the subwoofer manufacturer’s mounting-depth and air-space requirements with the enclosure’s listed details. Make sure the available mounting depth accommodates the subwoofer and that the box’s air space suits that driver. If either figure is missing or unclear, confirm it with the manufacturer rather than assuming compatibility from the subwoofer size alone.

What should I verify when a box is described as universal fit?

Treat universal-fit wording as a general description, not proof that the box fits your truck. Check the enclosure’s dimensions against the space behind your seat, including obstacles and seat movement. Also verify that the intended subwoofer fits the box.

Vehicle-specific fitment information can help narrow the choice, but measuring remains important.

When should I consider a dual-subwoofer enclosure instead of a single-subwoofer box?

Consider a dual-subwoofer enclosure if you want to install two compatible subs and have confirmed the truck has room for the box. Check the enclosure’s dimensions and each subwoofer’s fit requirements before choosing. For example, the editorial verdict identifies the Rockville RD12-T for shoppers needing two shallow-mount 12-inch subs who have verified 49 inches of width.

Final Words

For a dedicated behind-seat vented enclosure, the Q Power QBTRUCK112 stands out with space for one 12-inch subwoofer and listed air space of 1.88 cubic feet. Confirm its 5-inch mounting detail against your subwoofer and measure your truck before choosing. If you need two subs, consider the matching dual-size options only after checking fit; for a specified Silverado or Sierra, verify Subthump’s vehicle fitment.

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