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Carpeted square subwoofer box with single 12 inch ported hole

METRA

METRA IB-C112PK 12" ported subwoofer enclosure

SKU CH-8HT9-18031

A carpet-covered 12" ported enclosure with 1.93 cu. ft. internal volume and 16.5" mounting depth for deep, precise bass

  • TypeSubwoofer Box
  • Ported design delivers deep, precise bass response
  • 93 cu. ft. internal volume handles high-output 12" subwoofers
  • 5" mounting depth fits most standard 12-inch drivers
  • 75" wide carpeted enclosure protects finish in vehicle installs
  • 29 lb solid construction reduces panel resonance for cleaner output

Single 12" ported enclosure

The Metra IB-C112PK is a carpet-covered subwoofer box built around a single 12-inch driver opening. Its 1.93 cubic feet of internal volume and ported square hole design target car-audio enthusiasts who want deeper bass extension from one woofer without building a custom cabinet.

Internal volume and mounting depth

The sealed internal airspace of 1.93 cu. ft. and 16.5-inch mounting depth work together to tune the ported alignment, controlling cone excursion and reducing distortion at high output. A rigid carpet-wrapped MDF structure damps panel resonance so the enclosure stays quiet while the subwoofer moves air.

Carpet finish and pre-cut opening

Grey carpet covering resists scuffs and blends with most trunk interiors while protecting the wood core from moisture. The pre-cut 12-inch square woofer hole eliminates router work, letting the installer drop in a compatible driver, secure it with screws and wire the terminals in minutes.

Highlights

  • Ported design delivers deep, precise bass response
  • 93 cu. ft. internal volume handles high-output 12" subwoofers
  • 5" mounting depth fits most standard 12-inch drivers
  • 75" wide carpeted enclosure protects finish in vehicle installs
  • 29 lb solid construction reduces panel resonance for cleaner output

Specifications

BrandMetra
TypeSubwoofer Box

Questions about this item

How do I mount a 12-inch driver in the square cut-out and what torque should I use on the screws?

The enclosure has a square woofer hole sized for a 12-inch driver; use the supplied gasket, align the basket evenly, and tighten the mounting screws in a cross pattern to avoid warping the MDF.

Will the carpet covering or internal damping need replacement after a few years of daily driving?

The trunk-grade carpet is glued to the MDF and resists moisture; the internal polyfill is sealed inside the 1.93 cu ft ported volume and does not require servicing under normal use.

At what power level does the port start to chuff during long bass-heavy tracks?

The 1.93 cu ft ported design tuned for a 12-inch driver typically remains linear up to the driver’s thermal limits; chuffing appears first when excursion exceeds the port’s flare capacity.

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