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JBL GT4-12

1000W Single 4 ohms 12" Subwoofer

4.5

(2 reviews)

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The product on this page is discontinued, but there is a newer model available:
Newer Model: JBL GT5-12
gt512 thumbnail
$69.00In Stock
  • 12" JBL Subwoofer
  • Power Handling:
    • Peak: 1000 watts
    • RMS: 250 watts
  • Polypropylene Cone
  • Rubber surround
  • Over-sized motor design
  • High temperature 4 ohm voice coil
  • Frequency response: 23-450 Hz
  • Sensitivity: 93 dB
  • 1-year SonicElectronix.com warranty
Product History:
JBL GT5-12 thumbnail
(newest, current model)
JBL GT4-12 thumbnail
(previous model, replaced by JBL GT5-12)
Subwoofer Specifications
Subwoofer Size12"
Peak Power Handling1000 watts
RMS Power Handling250 watts
Voice Coil(s)Single
Impedance (Per Voice Coil)4 ohms
Frequency Response23 - 450 Hz
Sensitivity93 dB
Xmax (millimeters)N/A
Woofer CompositionPolypropylene
Woofer SurroundRubber
Recommended Enclosure Specifications
Top-Mount Depth6.25"
Cutout Diameter11.14"
Warranty and Return Policy
Return Policy Standard Return Policy
Customer Review Summary for JBL GT4-12
Average Customer Rating is 4.5 out of 5 stars:
4.5
based on 2 Reviews
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Rating Distribution:
5 star:
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50%
4 star:
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3 star:
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what's this?
Average Attributes Rating:
Durability
4.5
Value
5.0
Features
4.5
Design
3.5
Usability
4.0
what's this?
Most Helpful Customer Reviews:
July 24, 2007 Great subs
Review by
Michael from Saint Petersburg, FL
Overall
Durability
Value
Features
Design
Usability
This sub hits so hard. for this price....you cannot refuse.
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July 12, 2007 big bang for the buck
Review by
Craig from Mc Neil, AR
Overall
Durability
Value
Features
Design
Usability
Great sound from these subs they produce clean deep hitting bass. Have in a small enclosure because of limited trunk space and still sounds good bigger box even better
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Speaker Wire
Choose from our recommended speaker wire to hook up your amplifier to your new subwoofer. The higher quality of speaker wire that it used for this connection, the better your subwoofer will sound.
 ProductPriceAdd?
15 ft. of 12 AWG StreetWires Speaker Wire15 ft. of 12 AWG StreetWires Speaker Wire
This SuperCable from StreetWires is a noise free link between your amplifier and your subwoofer.		$19.99
20 ft. of 12 AWG Kicker Speaker Wire20 ft. of 12 AWG Kicker Speaker Wire
Kicker uses twisted pair technology and hyper-flex cable to provide you with the cleanest sound and a simple installation.		$24.49
Sound Dampening Material
Get the most sound out of your new subwoofer with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
 ProductPriceAdd?
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat!		$18.99
Dynamat Xtreme Trunk KitDynamat Xtreme Trunk Kit
Get better sounding bass from your new subwoofer with enough Dynamat Extreme for your entire trunk.		$94.99
Enclosure Accessories
These accessories are designed to help you build the custom enclosure that you have always wanted, or add to the box that you already bought. Either way, these products can assist you in achieving better sound, better looks, and more bass!
 ProductPriceAdd?
20 oz. Bag of Poly-Fil20 oz. Bag of Poly-Fil
Polyester fiber fiberfill adds better bass to your system.		$5.99
16 oz. Can of Adhesive Spray16 oz. Can of Adhesive Spray
Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.		$5.99
Spring Post Terminal CupSpring Post Terminal Cup
Makes adding a spring post terminal to an enclosure simple! Banana clip ready!		$2.99
Binding Post Terminal CupBinding Post Terminal Cup
Use this to easily install a binding post terminal to your subwoofer enclosure.		$2.99
Banana Clip TerminalsBanana Clip Terminals
These high grade banana clips allow you to plug into your banana clip ready terminal for a secure connection.		$4.99
System Optimization and Tuning
Use these items to assist in testing and tuning your new car audio system to perfection!
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD		$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.		$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.		$12.99

For more information on wiring subwoofers, visit our Subwoofer Wiring Guide: Subwoofer Wiring Guide

Product Summary

Manufacturer: JBL
Model number: GT4-12
Weight: 11.50 lbs
Internal SKU: gt412
Internal product ID: 8457

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