JBL GTO1214D

Grand Touring Series 12" subwoofer with dual 4-ohm voice coils

Item #: 109GT1214D

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Got an urge to get the lows bumping? JBL's GTO subwoofers may just fit the bill. They work great in sealed or ported boxes, so you'll get bass the way you like it. And these compact subs offer a lower profile so they fit into smaller boxes that save you space.

The GTO1214D 12" subwoofer sports a polypropylene cone, with a big rubber surround that allows plenty of cone movement without sacrificing control. A cast aluminum frame and heavy-duty dustcap reinforce the cone for lows that kick without distortion. A special integrated vent keeps the sub's internal workings cool and improves power handling capability. Dual voice coils give you more flexibility for getting the most out of your amplifier.

Note: If you are wiring this DVC sub for lower impedance, make sure that your amp is compatible. Most 2-channel car amplifiers are stable down to 2 ohms in standard mode, or 4 ohms in bridged operation. Most mono amps are stable down to 2 ohms.

To drive this single subwoofer, we recommend a mono amplifier rated between 260 and 525 watts RMS at 2 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.


Priced per speaker

Product Highlights:

  • 12" subwoofer with dual 4-ohm voice coils
  • polypropylene cone with hi-roll rubber surround
  • cast aluminum frame
  • power range: 100-350 RMS watts (175 watts per coil)
  • peak power: 1,400 watts
  • frequency response: 23-400 Hz
  • sensitivity: 93 dB
  • mounting depth: 6-1/4"
  • sealed box volume: 1.00 cu. ft.
  • ported box volume: 1.75 cu. ft.
  • 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

  • 12" DVC 4-ohm woofer
  • Self-adhesive gasket tape
  • JBL logo sticker
  • Instruction booklet
  • Technical Data sheet
  • Warranty sheet

Scratch & Dent items may be missing non-essential accessories. In some cases the manufacturer's accessories have been replaced with generic equivalents.

Product Research

Features
Enclosure Compatibility

Features

Woofer Cones: The JBL Grand Touring Series woofer features a polypropylene woofer cone with a heavy-duty molded dustcap.

Rubber Surrounds: The woofer features a rubber surround to provide exceptional cone-edge suspension and long-throw linearity with control and stability at the excursion limits.

Spider: The woofer's progressive spider provides better control at the excursion limits and reduces woofer distortion.

Dual 4-ohm Voice Coils: This woofer features dual 4-ohm voice coils that offer flexibility in wiring. When the voice coils are wired in parallel with each other, the woofer presents a 2-ohm mono load. When the voice coils are wired in series with each other, the woofer presents an 8-ohm mono load. In addition, each coil may be connected to a different amplifier channel and each channel will see a 4-ohm load.

Tinsel Wire Protector: The woofer uses a unique tinsel wire protector that also strengthen the joint between the cone, the voice coil and the spider. That joint is the most critical of all and must be able to withstand more stress than any other point in the moving assembly.

Terminals: The woofer features dual binding post terminals which can accept bare wire, pin connectors, spade lugs, and single banana plugs. Because of the spacing between the + and - terminals, they cannot accept dual banana plugs.

Die-Cast Aluminum Basket: The JBL GTO woofer features a die-cast aluminum basket for added rigidity.

Enclosure Compatibility

Recommended Sealed Box Volume: JBL recommends a 1.00 cu/ft sealed enclosure.

Recommended Ported Box Volume: JBL recommends a 1.75 cu/ft ported enclosure. One 4" diameter x 10" long port, tuned at 33Hz, should be used with the 1.75 cu/ft enclosure.

Recommended Bandpass Box Volume: JBL recommends a bandpass enclosure with a 1.00 cu/ft sealed rear chamber and a 1.25 cu/ft front ported chamber. One 4" diameter x 8" long port, tuned at 62Hz, should be used with this enclosure.

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.

JBL GTO1214D Reviews

Average Customer Review:

5 reviews
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Awesome SQ

Written By Lucas M., St. Marie, MT on Friday, May 02, 2014

Crutchfield Customer Review (What's this?)

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

I bought one, knowing that JBL quality came with it. The sub impressed me very much!!! The sound quality (which it does best) was awesome!! It also provided great lows in the Sound Ordinance Bass Bunker. Awesome sub for not much investment!!

Pros: Awesome sound quality!! Great flexibility as far as enclosures go!! Dual voice coil means easier system adaptation. Quick, responsive, yet will stretch out to get LOW!!

Cons: Unfortunately the amplifier I am using, is just too dang much for this guy!!! I wish I had room for two of them, that would be perfect. The voice coils just couldn't take the power!!

JBL GTO1214D

Written By Lisa, Hollywood Fl on Friday, December 27, 2013

Crutchfield Customer Review (What's this?)

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

Easy to install went to crutch field diagrams - perfect! Sounds great!

JBL GTO1214D

Written By brad, Given, WV on Thursday, July 04, 2013

Crutchfield Customer Review (What's this?)

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

Ok for a beginner system not for advanced system

Pros: Ease of use!

Cons: Cheaply built speakers

Great sub!

Written By JBL1212, Chicago,IL. on Monday, January 28, 2013

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

Recently got this sub and man it hits hard. The sub does take time to break in but even at low volume levels slams. I have it in a ported box powered by a Jbl GTO501EZ its around 700w, but is 500rms giving the sub more than enough power putting it around 130% a perfect sweet spot for this 350rms sub. The sub hits its highs and lows very well, it definitely shows 1400w peak. The sub unlike many others has a very solid frame keeping it strong at higher volumes. its very loud!!

Pros: inexpensive, powerful,solid, hits every frequency

Cons: Stinks waiting for it to break in, but its the same for almost any sub

Outstanding subwoofer!

Written By Fancyfeathers, Anchorage, Ak on Sunday, January 20, 2013

Crutchfield Customer Review (What's this?)

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

I took a shot, not knowing much about JBL, and it was worth it. Once I got it broken in with only a 750watt amp it was really great. Superb highs and fantastic lows. Once I got a 1000watt amp then it REALLY started making noise. It's got alot of kick in it, and just for one sub! I would recommend getting this, I'm really glad I did.

Pros: It's great if you want to have more than one subwoofer at a time, since there's dual voice coils which makes for easy wiring. It's got some weight to it, I've always liked a heavy subwoofer haha. It come with a JBL sticker! All around great sound and great quality. I'm satisfied

Cons: If you only use one (like I am) the dual voice coil wiring is not necessary. But it doesn't affect the product to me at all, you just have to make sure you wore it properly(which isn't hard, the book tells you how to do it) other than that, there's nothing I have to complain about

Get everything you’ll need to enjoy your new JBL GTO1214D

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.
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