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JBL GT7-4

GT7 Series 4" 2-way car speakers

Item # 109JBLG74

These GT7-4 speakers from JBL have everything you want when shopping for a car speaker: an advanced design, quality...

Find what Fits your vehicle

These GT7-4 speakers from JBL have everything you want when shopping for a car speaker: an advanced design, quality...

California customers:
Please click here for your Proposition 65 warning.

Enrique
Need help?
Contact our Virginia-based experts.
Discontinued item
1 question - 1 answer

Item # 109JBLG74

Enrique
Need help?
Contact our Virginia-based experts.

About the JBL GT7-4

A cool upgrade

These GT7-4 speakers from JBL have everything you want when shopping for a car speaker: an advanced design, quality materials, a cool look, and a practical price tag. But in the end, it's what they sound like that matters most, and true to their iconic heritage, these JBLs deliver.
GT7-4 profile

The compact design of the GT7-4 makes it a fit for a wide variety of cars.

A cool upgrade

These GT7-4 speakers from JBL have everything you want when shopping for a car speaker: an advanced design, quality materials, a cool look, and a practical price tag. But in the end, it's what they sound like that matters most, and true to their iconic heritage, these JBLs deliver.

How do they do it?

In spite of their size, these 4" speakers always kick out plentiful midbass, thanks to their patented Plus One™ architecture which expands the surface area of the polypropylene woofer cone. Balanced dome tweeters handle the high notes with ease, especially when powered by an aftermarket radio or amp. JBL built these GT7 speakers to handle up to 30 watts RMS, but with a design geared toward maximum efficiency, you'll gain superior performance even from a factory radio. Grilles are included for a custom installation.

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Product highlights:

  • 4" 2-way speakers (pair)
  • polypropylene Plus One™ woofer cone with foam surround
  • balanced dome PEI tweeter
  • power range: 2-30 watts RMS (90 watts peak power)
  • frequency response: 75-20,000 Hz
  • sensitivity: 90 dB
  • top-mount depth: 2"
  • grilles included
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # GT7-4

What's in the box:

  • Two 2-way speakers
  • 2 Grilles
  • Eight 1-1/8" Self-tapping Allen head screws
  • 3mm Allen head bit
  • 8 Speed clips
  • Instruction manual

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More details on the JBL GT7-4

Pat M.

Features & specs

General
Speaker Size 4
Design 2-way
Tweeter Design Balanced Dome
Impedance (Ohms) 4
Tweeter Composition PEI
Woofer Composition Polypropylene
Woofer Surround Foam
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity (1W at 1 meter) N/A
Sensitivity at 2.83 volts 90
Frequency Response 75 - 20k Hz
Minimum RMS Wattage 2
Maximum RMS Wattage 30
Peak Power Handling (Watts) 90
Top-mount Depth (Inches) 2
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 3 5/8
Mounting Height (Inches) 0.48

Product Research

Features

Plus One Woofer Cones: The Plus One speaker cones offer more surface area than other speakers that fit in the same size opening. This is accomplished by using a new basket design and hi-roll surround. The result is greater bass output and an increase in efficiency.

Balanced Dome Tweeter: Each speaker has a PEI (Poly-Ether-Imide) balanced dome tweeter. PEI is a polymer film that produces a wide soundstage for superior imaging. A semi-dome tweeter has a dome placed inside a cone. Balanced dome tweeters are semi-dome tweeters with equal reproduction area given the cone and dome portions of the tweeter.

4/2 Hole Compatibility: Most 4" factory speakers use four mounting screws, however, in some vehicles, only two are used. The GT7-4's mounting tabs can be removed, allowing installation in 4-hole or 2-hole applications. Care should be taken handling the speaker after any tabs are removed because the broken edges may be sharp. Please check the Find What Fits Your Car application to confirm fit in your vehicle.

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Customer Q&A

1 question already asked

Q
Will these speakers fit in the factory brackets?
[ Peter  Apr 27, 2015 ]
1 answer
A
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.
[ Krissy  Apr 27, 2015 ]  Staff

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