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Sony Xplōd™ XS-GTX121LS

Sealed enclosure with one 12" subwoofer

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  • Sony Xplōd™ XS-GTX121LS

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  • Sony Xplōd™ XS-GTX121LS

  • Sony Xplōd™ XS-GTX121LS

  • Sony Xplōd™ XS-GTX121LS

  • Sony Xplōd™ XS-GTX121LS

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Item #: 158GT121LS
 

Review Summary

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Original price $129.99
 
 
 
 

Our take on the Sony Xplōd™ XS-GTX121LS

by Jo Greene
Sony

Enclosed Subwoofers 101

An enclosed subwoofer is a box with a subwoofer already installed. The advantage to buying an enclosed sub is that the manufacturer made the sub, then designed and built the box as a perfect match, so you'll get the best possible performance. Every enclosed sub has a maximum RMS power handling rating, so pair it with an amp with a similar RMS power rating to get the best performance.

Sony designed the XS-GTX121LS sub enclosure to deliver space-saving bass in your compact car or truck. The enclosure houses an explosive 12" sub with a unique five-sided design that helps the cone stay stiff while reducing standing waves that can diminish your bass output. The sub's sturdy internal construction gives you strong performance over the long haul.

This sealed enclosure produces tight, accurate bass, and its medium-density fiberboard construction means this box can stand strong when the bass gets heavy. Industrial-grade black carpet protects your trunk from nicks and scratches. This loaded enclosure handles serious power — up to 300 watts RMS — so you can throw down with confidence. The gold-plated binding post terminals accept just about any speaker connector on the planet.

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Highlights:

  • sealed enclosure with one 12" subwoofer
  • medium-density fiberboard construction covered with black carpet
  • 5-way binding posts accept pin connectors, spade connectors, banana plugs (single or dual), or bare wire (up to 12 gauge)
  • 4-ohm total impedance
  • power handling: 50-300 watts RMS (1000 watts peak power)
  • frequency response: 42-1,000 Hz
  • sensitivity: 87 dB
  • 17-5/8"W x 14-3/8"H x 7-5/8"D1 x 6-3/16"D2
  • warranty: 1 year
  • Our 60-day money-back guarantee

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

Features and Specs
General
Woofer Size (inches)
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12
Woofer Material
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Polypropylene
Enclosure Type
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Sealed
Color
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Black
Pieces in System
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1
Width (inches)
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17-5/8
Height (inches)
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14-3/8
Depth (inches)
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7-5/8
Second Depth (inches)
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6-3/16
Connector Type
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5-way posts
Frequency Response
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42-1,000 Hz
Power Range (Watts RMS)
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50-300
Maximum Wattage
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1000
Sensitivity
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87 dB
Impedance
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4 ohms
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

  • Sealed enclosure with loaded 12" woofer
  • 4 Installation feet
  • Eight 3/4" Pan-head self tapping screws
  • Eight 1-1/4" Flat-head self tapping screws
  • Instructions (English/ French/ Spanish)
  • Warranty information

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

Enclosure: The Sony XS-GTX121LS is a sealed enclosure loaded with one front firing 12" woofer. The box is made of 5/8" medium density fiberboard (MDF) and covered with black carpet on all sides. The enclosure is a slim design to maximize installation flexibility.

Binding Posts: The enclosure features a pair of gold-plated, color-coded, 5-way binding posts on the left side that will accept pin connectors, spade connectors, single banana plugs, dual banana plugs, or bare wire up to 12 gauge.

Woofer: The XS-GTX121LS has a 12", single voice coil, 4-ohm, five-sided polypropylene cone woofer with a rubber surround for lower distortion, louder sound and deeper bass.

Power Ratings: The woofer can handle up to 300 watts RMS; 1,000 watts peak.

Frequency Response: The frequency range for the system is 42 to 1,000 Hz.

Sensitivity: The sensitivity rating is 87 dB (1W/1 m); the in-car sound pressure level is 90 dB (1 watt, measured at the driver's seat).

Mounting: The Sony XS-GTX121LS was designed to fit in the cargo or trunk area of most vehicles, or behind the seat in many pickups. Four mounting brackets are included, along with 16 self-tapping mounting screws to secure the box.

Dimensions:

  • Width: 17.625"
  • Height: 14.375"
  • Depth (deepest point, along the bottom edge of the speaker frame): 7.577"
  • Depth (bottom of enclosure): 6.921"
  • Depth (top of enclosure): 6.165"
 
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Sony Xplōd™ XS-GTX121LS Reviews

Average Customer Review:

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Filter by rating:
4 out of 5

Great Value and Size

Written By Chase U, El Paso, TX on Sunday, March 23, 2014
 
I bought this for my 2 door Nissan Frontier pickup. It fit great in the back and left me some space behind the seats. I was a big fan of the simplicity and size of the system. I used the Sound Ordnance M-1500 to run it, and it worked great. It provided a lot of great sound, but when I really turned it up, it would lose some of the quality. At full power you can hear that the cone is just plastic, so watch out for that. If you're going to run it in a tight space in close proximity, I'd say this is a perfect sub. Also, it came with mounting brackets, so that was nice. It lasted me a year before I sold the truck and sub with it; I never had any issues with it
Pros:
Price Size Construction Quality
Cons:
Sound quality at full power
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"Coolness Factor"
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4 out of 5

Pretty Good

Written By Avalanche, Guam on Thursday, November 07, 2013
Crutchfield Customer Review (What's this?)
 
Pretty good for average Boomers, but not for your serious thumpers. But over all it's good
Pros:
Pretty good but just for you and your passengers only.
Cons:
If you want people to notice you coming I wouldn't recommend this sub.
1 out of 1 people found this helpful
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Value
 
4 out of 5

Great sound for the price!

Written By Brandon C, United States London, Ky on Sunday, October 13, 2013
 
I put this Sony in the back of my Subaru Legacy. I'm using a 1200 watt Hiphonis Brutus amp with the Xplod and it handles every bit of the 1200 watts with little distortion. I would recommend this sub to someone who wants bang for their buck!
Pros:
Great Sound Doesn't take up much space Handles more power than it says
Cons:
None so far
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"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
2 out of 5

Was OK until it blew after 2 weeks

Written By Anonymous, Millis, MA on Wednesday, May 15, 2013
Crutchfield Customer Review (What's this?)
 
Used a 500w JL Audio amp and it blew in 2 weeks. Ended getting a JL Audio W3 12" PowerWedge
1 out of 3 people found this helpful
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"Coolness Factor"
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Ease of Use
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5 out of 5

Sony Xplōd™ XS-GTX121LS

Written By Roger, Milwaukee, WI on Wednesday, December 12, 2012
Crutchfield Customer Review (What's this?)
 
Excellent sound, quality and commodity.
Pros:
easy to install, great sound
Cons:
none
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"Coolness Factor"
Build Quality
Ease of Use
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4 out of 5

Not bad!

Written By Nathan, Elk Grove, CA on Thursday, February 02, 2012
Crutchfield Customer Review (What's this?)
 
I got this sub because of the slim profile of the enclosure and of course the price point. I've had a bunch of different audio set ups in many different vehicles over the years stretching from 1,500 watt powered twin 12" MTX subs with large enclosures to the small kenwood 6X9 powered sub. The sony fit well under the bench seat of my silverado, and the mounting hardware provided made sure it stays put. I mated it with the Kicker DX250 watt mono amplifier and wiring kit. The sound isn't as loud as i would have thought but it does give enough punch to fill the cabin and shake your seat. The sound is a little muddier than other subs i have used, but with a little tuning with the head unit i got it sounded pretty decent and im very happy with it. If i had to do the purchase all over again i would still get this sub however i would buy the 500W kicker amp which would provide a better punch and sound quality.
Pros:
Price, build quality, compact size that will under a bench seat on ext cab trucks.
Cons:
Sound isn't as top quality as it could be.
5 out of 5 people found this helpful
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"Coolness Factor"
Build Quality
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Value
 
5 out of 5

Sony Xplōd™ XS-GTX121LS

Written By AaronK, Southwest on Tuesday, November 22, 2011
Crutchfield Customer Review (What's this?)
 
Awesome Buy!
Pros:
I loved how it was all set up.
Cons:
Nothing.
1 out of 4 people found this helpful
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3 out of 5

At least it's inexpensive!

Written By Lost Lake, Wisconsin on Friday, November 11, 2011
Crutchfield Customer Review (What's this?)
 
I pulled a 10" JL W0 out of my truck to put this sub in. I figured this would give me more bass, and my truck is a Mega Cab so it's a lot bigger than any car, more like a minivan interior. I was hoping I could slide this sub under the rear seat and not have a sub behind the seat so I could still recline the rear seats. The speaker comes with no grill guard and the fit under the rear seat is kind of tight. I think if I put it under there the sub may be damaged when someone sits on the seat. I would like to find a grill guard for it. While I was swapping the two speakers out I had the opportunity to try them side by side. I am powering the sub with an Alpine 350 mono amp, coming off an Eclipse head unit. The JL W0 is the lowest end speaker they make. The JL moves a lot more than the Sony, the cone moves in and out a lot. Both are in sealed boxes. The sound from the JL is definitely sharper. Drum beats are crisper. The Sony is muffled and boomier, more muddy. While the Sony is louder it is more of a rumble. I am going to hook them both up and see if I can get the crisp sharp drums from the JL and keep some of the low end rumble from the Sony. If you are looking for accurate base, I'd keep looking past the Sony.
Pros:
I didn't have to spend a lot. Looks okay. The box is nice.
Cons:
Muddy sound.
3 out of 4 people found this helpful
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5 out of 5

Ridiculous bang for the buck

Written By PeterG, Pittsburg, CA on Friday, July 22, 2011
Crutchfield Customer Review (What's this?)
 
This was my first sub, and I loved it! It was stolen out of my car a month back, and I replaced it with a 10" RF prime sub based on some stellar reviews, and was really disappointed. So I returned that and got this. What a difference! The sound is crystal clear, very resonant, and plenty of volume. For the price, the best around. Even better than some much higher end stuff I have heard. I HIGHLY recommend this to you!
13 out of 13 people found this helpful
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5 out of 5

Lot's of Boom Boom

Written By Jager247, Waynesboro Va on Tuesday, April 12, 2011
 
Got this today to put in my 06 Titan, mounted under the back seat with no
problems. This sub is nice and tight. Feels like a hammer hitting you in the
chest. Very pleased. Running a S/O M1500 amp @300w RMS and a
Kenwood X395 head unit. with Polk 6.5 in all four doors. this system rocks.
9 out of 9 people found this helpful
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Add accessories for the Sony Xplōd™ XS-GTX121LS

It's critical to have good wire, and none is included with the sub. See all categories & accessories

T-Spec 16-gauge Speaker Wire Black/white jacket — priced per foot
11 people say
Your Price: $0.69
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T-Spec 12-gauge Speaker Wire Black/white jacket — priced per foot
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Stinger PRO Series 16-gauge Speaker Wire Black jacket — priced per foot
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Dynamat Xtreme Wedge Pack 1 sheet, 4 square feet
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Dynamat SuperLite Tri-Pak Triple package — 3 sheets, 12 square feet (Model #10612)
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Your Price: $69.99
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Dynamat Xtreme Trunk Kit 5 sheets, 20 square feet
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Dynamat Dynaliner One 54" x 32" sheet (1/8" thick)
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Your Price: $69.99
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Dynamat 19100 License Frame Kit
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Your Price: $14.99
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Autosound 2000 Disc One Low Frequency Test CD (Disc One)
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Autosound 2000 Disc Four Amplifier Optimizer Test CD
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For a more in-depth review and enhanced detailed information on the Sony Xplōd™ XS-GTX121LS, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_158GT121LS/Sony-Xpl-d-XS-GTX121LS.html ).