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Q-Customs Factory-fit Subwoofer Enclosures

2002-up Chevrolet Trailblazer/GMC Envoy (Light Tan)

8 Reviews

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Item # 044C1GTAC5

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Our take on the Q-Customs Factory-fit Subwoofer Enclosures

Designed to give you factory fit and finish plus great sound and durability, this Q-Customs enclosure by Q-Logic is designed to hold one 10" Type 1 subwoofer. It mounts to the passenger side panel at the rear of the vehicle.

Designed to give you factory fit and finish plus great sound and durability, this Q-Customs enclosure by Q-Logic is designed to hold one 10" Type 1 subwoofer. It mounts to the passenger side panel at the rear of the vehicle.

This enclosure fits pefectly in the interior of your vehicle. It looks like original equipment, but gives you the deep, pounding bass that no factory system can touch. Internal volume is 0.65 cubic feet.

Please check with us before purchasing by identifying your vehicle, or calling a Sales Advisor at 1-888-955-6000 to verify fit information.

Great product! Fits nice, looks factory! Easy to put in.

Frankie, Great Falls, SC

What's in the Box:

  • Light tan custom 10" subwoofer enclosure with installed terminal cup
  • Light tan ABS fascia panel
  • Light tan mesh pressure-fit grille
  • Polyester fiber batting
  • Roll of foam tape
  • 40" Rubber U-channel gasket (for grille)
  • 30" Speaker wire (installed in enclosure)
  • Eight 1" wood screws
  • Four 1" M6 hex bolts
  • 1/4-20 x 1/2" hex bolt (with a star nut installed)
  • Large metal bracket (1125-51950A) with two 1" studs (each stud has a star nut installed)
  • Small rubber padded metal bracket (1125-51950B)
  • Installation Instructions

Q-Customs Factory-fit Subwoofer Enclosures Reviews

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(8 Reviews)
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Installation Notes


Compatibility: This Q-custom enclosure is designed to be installed in the passenger's side rear quarter panel in the 2002 and up Chevrolet Trailblazer, GMC Envoy, and Oldsmobile Bravada.

Note: This enclosure is made for the 5-passenger models only. It will not fit EXT, XL, or XUV models.

Materials: The enclosure and fascia panel are made of strong, lightweight, light tan, thermo-formed ABS plastic. The side panel of the enclosure features a 5/8"-thick MDF baffle for mounting the 10" woofer. All mounting hardware, including a 2-piece metal mounting bracket, is included.

Enclosure Type: According to Q-Logic's Bass Performance Match specs, this Q-custom is a Type I enclosure, suitable for drivers designed for small, sealed enclosures.

Grille: A matching light tan pressure-fit, flush-mount grille is supplied for a custom look.

Speaker Terminals: The Q-custom has two spring-loaded binding posts, which can securely accept bare wire, pin connectors, banana plugs and dual banana plugs.

Woofer Orientation: Once the enclosure is mounted in the vehicle, the woofer fires sideways toward the center of the vehicle.

Specifications: This enclosure has the following specifications (for proper fit and response, the subwoofer of your choice should conform to the following specs):

  • Driver Size: 10"
  • Internal Volume: 0.65 cu./ft.
  • Maximum Frame Diameter: 12"
  • Cutout Diameter: 9.11"
  • Maximum Depth: 8.0"

Installation Notes

Panel Removal: Before the subwoofer enclosure can be installed, removal of the factory side panel is required. This requires a Phillips-head screwdriver to remove the upper trim panel, and a #50 Torx bit to remove the upper and lower seat belt bolts.

Bracket Installation: In order to install the mounting bracket, you will need a 10mm socket or wrench. The amplifier on Bose-equipped vehicles is mounted in the same location. The bracket will install over the amplifier using the same bolts that secure the amplifier.

Lower Trim Panel: In order for the mounting studs to pass through the lower trim panel, holes will need to be drilled in the storage pocket area. A drill and 3/8" drill bit will be needed.

Woofer Installation: Because the enclosure is secured to the mounting location from the inside of the enclosure, it is necessary to fully install the enclosure in the vehicle before mounting the woofer in the enclosure.

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