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Pioneer UD-SW120D

Single down-firing sealed enclosure for 12" shallow sub

1 Review

Item # 130DSW120D

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Our take on the Pioneer UD-SW120D

Pioneer built their UD-SW120D subwoofer enclosure so you can get great bass in a vehicle where there's not a lot of space. This rugged enclosure comes in at just 6-1/4" tall, so it'll fit under many seats or even under the overhang in some trunks. Built with 5/8" medium-density fiberboard and covered in durable black carpet, this enclosure provides .50 cubic feet of air space for a single 12" shallow subwoofer. Pioneer recommends installing the TS-SW3001S4 subwoofer in this enclosure.

Pioneer builds this sturdy box to deliver tight, accurate bass. Install a compatible sub, power up with a suitable amplifier, and you'll be ready to rock.

Product Highlights:

  • sealed down-firing enclosure for one 12" shallow subwoofer
  • 5/8" MDF (medium-density fiberboard) with black carpet covering
  • internal volume: 0.50 cubic feet
  • dimensions: 20-1/2"W x 6-1/4"H x 13-7/8"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

It's a great compact box. It was the perfect size to fit underneath the seat of my f-150.

Mitchell Mullins, Rowlett, tx

What's in the Box:

  • Single down firing enclosure for Pioneer's shallow mount 12" subwoofer
  • Note that mounting hardware is not included

Pioneer UD-SW120D Reviews

Average Customer Review(s):

(1 Review)

Pioneer UD-SW120D

Mitchell Mullins from Rowlett, tx on 5/19/2014

Crutchfield Customer Review (What's this?)

It's a great compact box. It was the perfect size to fit underneath the seat of my f-150.




Hands-on research

Product Research


Compatibility: This enclosure is designed for a single Pioneer 12" shallow-mount component subwoofer, TS-SW3001S4 (item number 130TSS3001, sold separately).

Note: Other brand subwoofers may also be compatible.

Materials: The box is constructed of 5/8" MDF (medium density fiberboard). MDF resists flexing and has anti-resonant qualities.

Design: Complementing the shallow subwoofer, this enclosure provides the smallest sealed box volume recommended for the TS-SW3001S4. The UD-SW120D enclosure will fit under the seat of many vehicles. The exterior is covered with black auto carpet.

Terminals: The spring post wire terminals, located on the side of the enclosure, will accept bare wire (up to 10 gauge), pin connectors, banana plugs, and dual banana plugs.

Brackets: Brackets (not included) are recommended for more secure mounting.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.