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Pioneer UD-SW120D

Single down-firing sealed enclosure for 12" shallow sub

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  • Pioneer UD-SW120D

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  • Pioneer UD-SW120D

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Our take on the Pioneer UD-SW120D

by John Pollard
Pioneer

Why do I need an enclosure?

An enclosure is simply the box that houses your sub; sealed and ported enclosures are the most popular types. A sealed enclosure is usually smaller in size, sacrificing a little volume level to deliver more accurate bass. The ported enclosure features a vent which allows bass waves to escape from behind the mounted sub, augmenting the bass coming off the front of the sub. Ported boxes are louder, bigger, and a little less accurate. Every sub works best in the size and type of enclosure that's recommended by the manufacturer, so make sure you match your sub with the right box.

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.

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
 

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
General
Box Type
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Sealed
Number of Boxes
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1
Number of Speakers Per Box
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1
Speaker Size
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12
Cutout Diameter or Length (inches)
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11
Maximum Speaker Depth (inches)
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4-1/4
Box Volume (cubic feet)
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0.5
Tuning Frequency
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N/A
Height (inches)
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6-1/4
Width (inches)
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20-1/2
Depth (inches)
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13-7/8
Second Depth (inches)
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13-7/8
Wood Thickness (inches)
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5/8
Speaker Wire Connectors
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Spring posts
Box Color
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Black
Box Finish
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Carpet
Parts Warranty
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1 Year
Labor Warranty
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1 Year
Product Research
What's in the box?

Download owner's manual

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

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 open the box, verify contents, 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.

Features

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.

 
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Add accessories for the Pioneer UD-SW120D

You'll want a sub that is a match for this enclosure. See all categories & accessories

Pioneer TS-SW3001S4 Shallow-mount 12" 4-ohm subwoofer
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Stinger PRO Series 16-gauge Speaker Wire Black jacket — priced per foot
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Polyester Fiber Stuffing Make your subwoofer think it's in a bigger box (1-pound pack)
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For a more in-depth review and enhanced detailed information on the Pioneer UD-SW120D, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_130DSW120D/Pioneer-UD-SW120D.html ).

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