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JBL GT5-12

275W 12" GT Series Single 4 ohm Subwoofer

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$49.95

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JBL GT5-12

275W 12" GT Series Single 4 ohm Subwoofer

$49.95

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NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

$39.99

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20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

$59.99

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Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

$16.99

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Bundled Savings with this Product

Save 20% on a Sealed Sub Box with Select Subwoofers!

Save 20% on a Sealed Subwoofer Enclosure when you add a Belva MDFS12 to your Subwoofer purchase. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.

8.00

10580

502

JBL GT5-12

$49.95

+

20% OFF

Single 12" Sealed MDF Subwoofer Enclosure (Belva MDFS12)

$39.99

Special Price $31.99 ($39.99 if purchased separately)

Single 12" Sealed MDF Subwoofer Enclosure (Belva MDFS12)

• 3/4" Medium Density Fiberboard Construction
• Durable Black Carpeting
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals

25% Off a Vented Enclosure with Your Subwoofer Purchase!

Add a Belva BBX112BK Vented Subwoofer Enclosure to your Subwoofer purchase and save $15. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.

15.00

10580

145

JBL GT5-12

$49.95

+

25% OFF

Belva BBX112BK (BLACK)

$59.99

Special Price $44.99 ($59.99 if purchased separately)

Belva BBX112BK (BLACK)

• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard Construction
• Black Panel
• Durable Black Carpet
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals
• Total Box Volume: 1.842 Cubic Feet

FREE $40.00 NVX 12 ga. Speaker Wire with purchase!

FREE NVX XWS1225 speaker wire with your purchase! 25 Feet of 100% copper wire, 12 gauge and true to spec!

39.99

10580

28

JBL GT5-12

$49.95

+

100% OFF

NVX XWS1225

$39.99

Special Price $0 ($39.99 if purchased separately)

NVX XWS1225

• 12-Gauge EnvyFlex Power/Ground Wire Cable
• 25 Ft. Pre-Cut Cable
• Ideal for less than 100 Watts
• Flexible Multi-Strand Construction
• Silver-Tinned Oxygen Free Copper

(Offer 1 of 3)

Combined Total Price

$81.94

You Save $8.00

JBL Audio Store

Big Bass

For anyone who likes to crank it up in the car, the new JBL 12" high-output GT5-12 subwoofer is the real deal. The JBL GT5-12 subwoofer features a single 4-ohm voice coil and a vented motor structure, and offers 1100 watts of peak power handling. The GT5-12 also features JBL’s newest design, combining classic elements with modern ones.

All-New Design

The GT5-12 follows the design of the more-expensive JBL subwoofers, combining classic elements with modern ones.


Significant Power Handling Capabilities

The GT5-12 handles 275W/1100W (RMS/Peak) power and offers nearly 20 percent higher Xmax than many competitors.


Increased Reliability

With its fully vented motor structure and rubber-coated tinsel leads, the GT5-12 is able to withstand even the most intense bass assault.


Dual-Stacked, Oversized Magnets

Unlike competing entry-level subwoofers, the GT5-12 is based on a solid motor structure featuring two large magnets covered by the classic JBL rubber ring.




The Sound of quality

Sonic Electronix, one of the leaders in car audio, recently visited Harman, the premium global audio and infotainment group, at their research and development locations in Northridge, California and Detroit, Michigan. The purpose of these visits was to utilize and combine the powerful brand of Harman and the industry leading knowledge behind Sonic Electronix to begin working together on developing future car audio projects.


General Features:

  • 12" GT Series Subwoofer
  • Power Handling:
    • Peak: 1100 watts
    • RMS: 275 watts
  • Recommended power range: 100 - 275 watts RMS
  • Impedance: Single 4 ohm
  • Polypropylene cone woofer
  • Rubber surround
  • Rubber coated tinsel leads
  • Vented motor structure
  • Single 4 ohm voice coil
  • Dual-stacked, oversized magnets
  • Frequency response: 27-450 Hz
  • Sensitivity: 90 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
Tips for Installing the your subwoofer


Product History:

JBL GT5-12 thumbnail
(newest, current model)
JBL GT4-12 thumbnail
(previous model, replaced by JBL GT5-12)

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
GT5 (JBL)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
12"
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
1100 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
275 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Single
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
2"
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
27 - 450 Hz
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
90 dB
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
14.2 mm
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Black
Silver
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Polypropylene
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Rubber
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Double Stacked
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
No
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.
No

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Sealed
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.0 cubic feet
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.75 cubic feet
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
6-7/16"
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
11-1/4"
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No

Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
29 Hz
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
54.2 liters
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
0.58
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 – 10.
0.64
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
4.00 ohms
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 – 10.
6.39

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
75%
4 Star
13%
3 Star
13%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.5
Value
4.8
Features
4.4
Design
4.7
Usability
4.8
matthew

callahan, FL

Overall
Durability
Value
Features
Design
Usability
Awesome sound and underrated RMS power handling.

August 8, 2009

these subwoofers really really kick out the tunes. the powerhandling is way underrated and the can definitly handle more power than they say. i currently have them wired for 2 ohms and 1000 watts RMS between 2 of these and now my rear view mirror looks down when i crank the volume. these subs really get the job done and sound clean and undistorted the whole way through. also, they produce low notes beyond the rated 27Hertz.

41 of 47 found this helpful

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jess

gulfport, mississippi

Overall
Durability
Value
Features
Design
Usability
great buy

May 18, 2011

Bought 2 of these a few a days ago. Awesome subs. Great sound quality and they hit!! I have them in a sealled box. in a 99 eclipse. and the make my rear view mirror fall till it faces down. I can't wait to get a 600rms amp and really push these things. I would def recomend these subs. especially it your on a budget.

41 of 49 found this helpful

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alex

Hillsboro, NH

Overall
Durability
Value
Features
Design
Usability
Great buy!

August 10, 2010

This is a fantastic buy. Amazing for the price.

40 of 47 found this helpful

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Sean

Wappingers falls, NY

Overall
Durability
Value
Features
Design
Usability
WoW!

January 28, 2009

These subs are awesome for the value. Can't get any better than this! I love Sonic Electronix!

39 of 46 found this helpful

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Hamiltonian Bass Fiend

Lincoln, NE

Overall
Durability
Value
Features
Design
Usability
Personal Experience Says This Is One Excellent value

March 27, 2011

Hi, everyone, welcome to this review. Let me start this off with just telling a little bit about myself and my audio background. Being an Electrical Engineer, efficient and well-thought out design is key to any and all products which I consume. I've gone through the all the stereo in a boxes and decided to step things up and design a home system from the ground up each component carefully hand picked on a budget of $500 for the whole system.
The system: This 12" rated subwoofer driver was chosen to go into my hand built 3/4" MDF ported 2.05 cubic foot enclosure (not including port or driver displacement). It is driven by an MB Quart Discus 4-channel A/B amplifier with channels 3 & 4 bridged, feeding 320 watts of rated power. The amp feeds off a 400 watt continuous rated DC power supply. Though I rarely take advantage of all the available power.
Performance: While I only have personal experience with a few budget subwoofer drivers, I am a musician with a keen ear for sound nuances (I'm also somewhat of a bass fiend). I own earbuds and headphones that produce very flat sub bass curves, easily down to 20 hz, these can outdo any 12" subwoofer driver in below 35 hz sub bass, So I know what to look for. After more than 100 hours of listening with every possible musical genre, I can say that this performs as well as expectations. My main focus in a sub driver was to have very accurate and LOW frequency reproduction. Now, anyone with experience in these matters knows that ratings don't necessarily line up with reality. (Notice there is no threshold mentioned [such as +/- 3 dB]... vague ratings are hard to get an accurate idea of actual performance. However other reviews around the internet, along with the a look at the manufacturer supplied frequency response graphs, seemed to also give me the impression that this driver stands above the rest in low frequencies. Now, it all depends on the acoustic environment obviously. A car is much friendlier to low frequency reproduction than a big room, hence the reason for choosing this driver. Using my own tests with test tones and the sub placed optimally for the listening vantage point to be squarely in an anti-node for very low sub-bass frequencies (below 40 hz), I came up with, to my ear, about 33 to 35 hz accurate frequency reproduction and topping out slightly above 100 hz --- this is with the threshold being half the peak volume. As far as I know this is quite good for a setup such as mine. A 12" Pioneer sub of equal cost and same setup was much higher at this threshold (about 40-42 hz). At sub frequencies this low, the difference is very noticeable in bass music tracks, and even in the low rumble of a concert bass drum, however metal/rock/country/pop or what have you, the difference will be unnoticeable.
In summation: this driver performs very well at it's intended purpose low frequency reproduction, in the price range of less than $100. If you intend to burp out 40-70 hz bass at incredible dB, you could probably do better (get a low-end kicker model or some such, they might handle more power, but it seems some of those drivers don't respond well in ultra sub-bass). Very happy with this purchase.

38 of 46 found this helpful

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Max

Malaysia

Overall
Durability
Value
Features
Design
Usability
Bass On A Budget

March 13, 2011

I recommend this sub for anybody who just want to shake the inside of they car with a budget.Hook it up to a 300w RMS Mono and a custom vented box and your done and please don't dream of shaking your neighbors windows. But anyway good value from JBL.

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mike

Salina, KS

Overall
Durability
Value
Features
Design
Usability
nice sub for $$

January 26, 2011

got it hooked to a 600w mono and it sounds like I wanted it to. Not gonna blow the windows out but fills out the sound and can kick when necessary. great experience all around with the sub and sonic!

36 of 44 found this helpful

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Jason

Watertown, MA

Overall
Durability
Value
Features
Design
Usability
Best bang for the buck

April 17, 2009

A subwoofer with 14mm of REAL xmax for this price is unbelievable. It wasn't long ago a subwoofer of this quality would set you back quite a lot. The build quality is excellent from the heavy gauge stamped basket to the rubber coasted tinsel leads. All of the glue joints seemed neat and clean, I have no reason to believe this sub won't last me the life of my car.

In my opinion this woofer is completely underrated at 275W RMS. A 2" coil with vented pole piece means thermal compression should be minimal. A large linear throw, and progressive spider to handle high power transient peaks means the woofer is mechanically robust. As long as you have a moderately sized sealed enclosure or a PROPERLY designed ported box 400-500W should be no problem for this beast.

I've been running two of these in a sealed enclosure (1cf per sub no fill) with 300W RMS of class AB power. They're as efficient as any subwoofer I've used before, and handle everything down to 20Hz with plenty of control. The haven't struggled with anything I've thrown at them and just sound darn good with all types of music.

The only thing I don't like is the cheesy plastic dust-cap. I liked the old orange JBL logo with the peak wattage stamped proudly in large font. Oh well, nothing is perfect.

35 of 42 found this helpful

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Kevin

Bakersfield, CA

Overall
Durability
Value
Features
Design
Usability
Decent subwoofer

May 2, 2010

One of the better entry level subs around. The JBL GT5-12 once matched with the right amp, will not disapoint.

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SB

Los Angeles, Cali

Overall
Durability
Value
Features
Design
Usability
More impressed than the rock P1 or P2

November 1, 2011

Was quite surprised in the sound quality and the difference in the bass that it produced compared to the difference surface design of my Rockfords.
Personal fan of the type R but will def do for a replacement and for time being.

32 of 39 found this helpful

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Slamma

Spartanburg, SC

Overall
Durability
Value
Features
Design
Usability
best sub

December 9, 2009

i heard 2 of these and they are amazing. best subs iv ever heard for the price range.

32 of 39 found this helpful

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jamie

Ringgold , GA

Overall
Durability
Value
Features
Design
Usability
these things hit hard

March 6, 2008

I own 2 of these subs and I have them in a slotted port box powered by a JBL BP300.1 amp and I'm getting around 135 db in my Saturn

I have owned several different brands of subs and by far these are probably the best I've owed I'm ordering 4 more as soon as I can fit more in my budget for my truck.

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Brent

Clayton, NC

Overall
Durability
Value
Features
Design
Usability
Good Buy!

June 25, 2010

I Just bought one of these for my 03 mustang gt convertible and it sounds great ! I have it in a single 12 ported box. I have it hooked up to a 1000 watt Sony Xplod amp, and even with this crappy amp it pounds! This thing has excellent sq as well as some chest pounding bass !

31 of 38 found this helpful

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danny

lamontLamont, CA

Overall
Durability
Value
Features
Design
Usability
Nice 12's

April 9, 2008

I have two of these bad boy.They hit hard in my Galant ES. I have them in a bandpass box. They sound good when u turn up the bass. I recommend u buy some JBL GT.

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reza

Hong Kong

Overall
Durability
Value
Features
Design
Usability
this is best in price

July 14, 2012

I have 2 of these subs and I have them in a closed box powered by 800w rms and MARVEL me.

29 of 35 found this helpful

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Riley

Mound, MN

Overall
Durability
Value
Features
Design
Usability
bandpass

September 14, 2011

My brother had an older version of these subs in a 01 civic with a bandpass box.sounded AMAZING for the amount he paid. now they are hooked up to the garage sound system. and yes, the neighbors do complain.

30 of 37 found this helpful

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vernon

gulfport,mississippi

Overall
Durability
Value
Features
Design
Usability
great sub

June 5, 2011

I got this sub for my wife grand am gt and she love it. It don't shake the roof but its the kinda bass she wanted.

29 of 37 found this helpful

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Joskie

Arizona

Overall
Durability
Value
Features
Design
Usability
JBL GT5-12 Powerfull

February 14, 2016

I'm running these speakers in a 1QF per speaker which matches perfect. (sealed) These subs are being ran on a Hifonics 1000.1 monoblock amp. I have this amp and speakers running at 2ohms. I must say these speakers pound very hard and clear. This amp and speaker combo is a great match at ( roughly 750 watts) and I couldn't be happier with my purchase. You could go out and buy more expensive subs buy why. I've been in car audio for about 25+ years so I know when I say these speakers kick, they kick. My friend has all Rockford and my system hits and sounds cleaner than his by far. GET THESE SPEAKERS.....Don't over power match RMS that's the key that most people don't follow.

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jose

portland

Overall
Durability
Value
Features
Design
Usability
jbl gt5-12

March 29, 2016

This subs are good for people who are looking for something to bring the attention of other . I recommend this product besides they are loud , they last for a long time.

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Brian

St.Peters, MO

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Sweet subs

March 9, 2016

I received these 12's really fast and they are awesome. Great look, good construction and they sound awesome!

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X-men

NV

Overall
Durability
Value
Features
Design
Usability
JBL you can not be wrong.

February 15, 2016

NO KiCKER NO KENWOOD, BUT JBL. is enough trying one of their products to never go back to others brands. fair price, but mostly quality, thanks jbl,

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Michael

port saint lucie, FL

Overall
Durability
Value
Features
Design
Usability
One of the best subwoofers I have ever owned

January 10, 2016

This speaker pounds!!! I am running it on a single Kicker Mono Block 400 amplifier. It straight out rocks my little Toyota Tacoma.

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Tweekster

CHURCHS FERRY, ND

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
jbl gt-5

January 8, 2016

Great sub,like the Infinity but better price and looks!

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dj 1tyme

leakesville,ms

Overall
Durability
Value
Features
Design
Usability
jbl gt5-12

December 30, 2015

I put two in a ported box 35hz tune sounds great plas low I would recommend this subs.

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Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $39.99

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $59.99

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $70.97

Dynamat Sound Dampening Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $97.97

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $16.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $16.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $79.99

4 Ft of 1/4" Thick Black Heat Shrink Tubing

Provides abrasion resistance and added protection for your cables.

Your Price $2.99

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $8.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $9.97

Spring Post Terminal Cup

Makes adding a spring post terminal to an enclosure simple! Banana clip ready!

Your Price $3.99

40" x 15 Ft Piece of Premium Un-Backed Automotive Trim Carpet

Durable design for long life-span, available in many colors and shades.

Your Price $41.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

Your Price $19.95

Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

Your Price $19.95

12" Protective Waffle Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe.

Your Price $4.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

1 JBL GT5-12 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 JBL GT5-12 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 JBL GT5-12 Subwoofers

4 Channel Amp

4 JBL GT5-12 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Browse 2 questions and 4 answers
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Why did you choose this?
Sonic Electronix Store
price-sensativity-xmax-cone construction
william D on Jun 13, 2016
heard they where great replacement subwoofers, and wanted to give them a shot for now.
Enrique D on Jan 6, 2016
JBL Speakers have a real good reputation!
Shaka K on Jun 10, 2016
What is the optimal size for a sealed enclosure?
John B on Nov 15, 2015
Best Answer: Hello John,

As specified in the features and specs, 1 cubic foot.
Reply · Report · Rick MStaff on Nov 16, 2015
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

GT5-12

UPC

050036119412

Weight

16.00lbs

Internal SKU

gt512

Internal Product ID

10580

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: JBL GT5-12

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