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JBL GT5-15

300W 15" GT Series Single 4 ohm Subwoofer

JBL
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• 1200W Peak
• 300W RMS
• Single 4 Ohm
• Polypropylene Cone
• Rubber Surround
• Rubber-Coated Tinsel Leads
• Dual-Stacked Oversized Magnets
• Sensitivity: 92dB

Learn more about the gt515

We apologize

This item has been discontinued


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Product Highlights


• 1200W Peak
• 300W RMS
• Single 4 Ohm
• Polypropylene Cone
• Rubber Surround
• Rubber-Coated Tinsel Leads
• Dual-Stacked Oversized Magnets
• Sensitivity: 92dB

Description


JBL brand icon

Authorized dealer

Big Bass

For anyone who likes to crank it up in the car, the JBL® high-output GT5-15 subwoofer is the real deal. The JBL GT5-15 subwoofer features a single 4-ohm voice coil and a vented motor structure, and offers 1200 watts of peak power handling. The GT5-15 also features JBL’s newest design, combining classic elements with modern ones.

All-New Design

The GT5-15 follows the design of the more-expensive JBL subwoofers, combining classic elements with modern ones.


Significant Power Handling Capabilities

The GT5-15 handles as much as 300W/1200W (RMS/Peak) • With its fully vented motor structure and rubber-coated tinsel leads, the GT5-15 is able to withstand even the most intense bass assault.


Dual-Stacked, Oversized Magnets

Unlike competing entry-level subwoofers, the GT5-15 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:

  • 15" Single 4 Ohm GT Series Subwoofer
  • Power Handling:
    • Peak: 1200 watts
    • RMS: 300 watts
  • Recommended power range: 150 - 300 watts RMS
  • Impedance: Single 4 Ohm
  • Polypropylene cone woofer
  • Rubber surround
  • Completely vented motor structure
  • Rubber-coated tinsel leads
  • Single 4 Ohm voice coil
  • Dual-stacked oversized magnets
  • Frequency response: 25-400 Hz
  • Sensitivity: 92 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
Tips for Installing the your subwoofer


Subwoofer Wiring Guide


Wiring Guide to Wire 1 JBL GT5-15 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 JBL GT5-15 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 JBL GT5-15 Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 JBL GT5-15 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Series
GT5 Series
Subwoofer Size
15"
Peak Power Handling
1200 watts
RMS Power Handling
300 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
4 ohm
Voice Coil Diameter
2"
Frequency Response
25 - 400 Hz
Sensitivity
92 dB
Xmax (millimeters)
14.5 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Silver
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Magnet Structure
Double Stacked
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
1.5 cubic feet
Maximum Sealed Box Volume
2.0 cubic feet
Minimum Ported Box Volume
3.5 cubic feet
Maximum Ported Box Volume
4.5 cubic feet
Top-Mount Depth (Mounting Depth)
7-5/16"
Cutout Diameter
14"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
27.30 Hz
Equivalent Compliance (Vas)
106.5 liters
Total Speaker Q Value (Qts)
0.67
Electrical Q Value (Qes)
0.76
Electrical Resistance of Voice Coil (Re)
3.63 ohm
Mechanical Q Value (Qms)
5.70
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

JBL

Model Number:

GT5-15

Weight:

20.00lbs

Internal SKU:

gt515

Internal Product ID:

16026

Product and How-to Videos


  • Harman International: The Pursuit of Great Sound
  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?
  • How to Install a Car Subwoofer in a Box

Customer Ratings & Reviews


JBL GT5-15 thumbnail image

5 star
69%
4 star
31%
3 star
0%
2 star
0%
1 star
0%



Durability
4.8
Value
4.9
Features
4.3
Design
4.6
Usability
4.9

Customer Reviews

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AMAZING! POUNDS LIKE NO OTHER! GET THESE!

I bought two of these from Sonic and put them in my Integra. They're in a cheap-o box made of 1/2 MDF and running off the Power Acoustik BAMF-2000/1D amp. OH MY GOD! These are OFF THE HOOK! I got the loudest sound system at my school. Awesome sound quality too! If you're on a budget and you're looking for some SLAP, get these with the amp I mentioned. YOU WON'T BE DISAPPOINTED!

By Aaron on May 13, 2009

21 found this helpful


Fantastic. I highly recommend these.

I bought this subwoofer to run it by itself almost a year ago now. I have it running at 350rms 800peak in a ported box in the back of my hatchback.. It's still running great. This sub hits fantastic. Absolutely shakes the car. It's like having a back massager in my chair. If you're on a budget, this is the best boom for your buck.

By Rachel on February 19, 2010

20 found this helpful


Great Woofers!

I have 3 of these hooked up with a JBL amp in an enclosed box. Great sound quality and VERY loud. You cannot go wrong with JBL!

By Isaac on September 28, 2009

20 found this helpful


very great speckers

The JBL GT5-15 subwoofers are very outstanding. everything I was looking for and more.

By michael on October 18, 2010

20 found this helpful


the best sound ever

I have 2 of these and they shake like hell, it's the best bass speakers ever.

By sound boy on October 12, 2012

16 found this helpful


Get more BUMP for your buck

For the price, you can't find a better sub. My car was rockin when I put this bad boy in and it was so clear and crisp when the bass hit

By @Frankthatank on September 27, 2011

17 found this helpful


Pound'n away!!

Push'n with 1000 watt Gorilla amp,sounds great!! Does just what it's supposed to!!

By Nitromike on December 19, 2012

16 found this helpful


DO IT!

This subwoofer is amazing. I own one of these and can't complain, I've had it for over a year now and it still handles the daily abuse I give it. It can hit so hard that I've broke the seals on my box twice. Place it in the recommended 1.5 cubic foot sealed enclosure and you will have no need to complain. I install my own and "wow" my friends song after song with this sub.

By Nate on May 5, 2011

15 found this helpful


4 years later...

I was just taking a trip down memory lane, looking up the specs of my beloved subs and had to leave my two cents. I have had two of these puppies bumping 1800 watts through my car for four years now and have loved it. I have them in a double slotted enclosure and they never fail to impress and inspire. These subwoofers have shaped my life! Friends bring their ipods with them when we take trips in my car and everyone knows that in my car you roll down the windows, turn up the bass, and enjoy the ride. These subs are durable, beautiful, deep, and give a thick bass sound. I hope you find yourself inspired to drop a note of praise four years down the road as well.

By Rachel on August 4, 2012

14 found this helpful


Good Bang for your buck

I have 3 of these on a kicker zx1000.1 in my ford ranger and it beats. For the price you cant go wrong.

By Zack on October 6, 2011

14 found this helpful




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