Sony XS-GTR121L

GTR series 12" 4-ohm subwoofer

Item #: 158GTR121L

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Five sides equals big bass

The design of the Sony's GTR Series XS-GTR121L 12" 4-ohm subwoofer not only catches your eye, but it also helps give you better bass. The five-sided woofer cone reduces standing waves, which can diminish the bass output. The unique "dimple" design makes the cone more rigid so it'll hold its shape at high output levels, and it reduces the cone's weight so it's more responsive. You'll enjoy tight, accurate bass.

This XS-GTR121L handles up to 400 watts RMS, impressive for a sub in this price range. Even though the cone has five sides, this Sony still fits in a standard round opening in either a ported or sealed enclosure.

To drive this single subwoofer, we recommend a mono amplifier rated between 300 and 600 watts RMS at 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

Product Highlights:

  • 12" 4-ohm subwoofer
  • lightweight dimpled, five-sided injected polypropylene cone
  • durable rubber surround
  • power range: 100-400 watts RMS (1500 watts peak power)
  • frequency response: 30-1000 Hz
  • sensitivity: 87 dB
  • sealed box volume: 0.84 cubic feet
  • ported box volume: 1.37 cubic feet
  • top-mount depth: 5-3/8"
  • warranty: 1 year
  • Our 60-day money-back guarantee

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

Hands-on research

What's in the box?

Download owner's manual

  • One 12" woofer
  • 1 Strip of self-adhesive foam gasket
  • Ten 1-3/8" Self-tapping screws
  • Instructions (English/ French/ Spanish/ German/ 16 other languages)
  • Warranty information

Product Research

Features

P5 Cone Design: The five-sided polypropylene cone uses a unique dimpled design; this stiffens the cone, resulting in lower distortion.

Surround: To improve cone motion control, the surround is made of ThermoPlastic Olefin (TPO), a combination of rubber, polypropylene, polyethylene, and a reinforcing filler.

Binding Posts: The binding post wire terminals will accept pin connectors, spade lugs, single banana plugs, and bare wire up to 8 gauge. The binding posts are spaced too far apart to accept dual banana plugs.

Enclosure Compatibility: This woofer can provide extended bass in sealed and ported enclosures:

  • Recommended Sealed Enclosure Volume: 0.84 ft³
  • Recommended Ported Enclosure Volume: 1.37 ft³ using one 4" diameter x 9-1/8" long port

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.

Sony XS-GTR121L Reviews

Average Customer Review:

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Great subs

Written By Anonymous, Dayton, OH on Wednesday, August 13, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

These are some cool subs

Pros: Look good and sound awesome

Cons: Nothing so far

Get everything you’ll need to enjoy your new Sony XS-GTR121L

We've verified that these enclosures are a good match for this subwoofer.
It's critical to have good wire, and none is included with the sub.
Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
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