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JBL GX642 4"x6" 2-way car speakers

Item # 109GX642

JBL makes speakers for trend-setters, those who want a car speaker that looks as good as it sounds.

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JBL makes speakers for trend-setters, those who want a car speaker that looks as good as it sounds.

Item # 109GX642

About the JBL GX642

Alexander H.

Stylish sound

JBL makes speakers for trend-setters, those who want a car speaker that looks as good as it sounds. The GX642 4"x6" coaxial speaker flaunts a contemporary look that's backed by JBL's legendary commitment to excellent sound. The speaker's patented Plus One™ structure extends the surface area of the polypropylene woofer cone to give you a better midbass experience. And an edge-driven tweeter expands the high-frequency range, so you'll hear musical details that you never heard from your old speakers.
JBL GX642

The compact build of the JBL GX642 makes it a great fit for more factory openings.

Stylish sound

JBL makes speakers for trend-setters, those who want a car speaker that looks as good as it sounds. The GX642 4"x6" coaxial speaker flaunts a contemporary look that's backed by JBL's legendary commitment to excellent sound. The speaker's patented Plus One™ structure extends the surface area of the polypropylene woofer cone to give you a better midbass experience. And an edge-driven tweeter expands the high-frequency range, so you'll hear musical details that you never heard from your old speakers.

The little things that count

The GX642's low-impedance design safely draws more power from your car stereo or amp to give your music extra punch. JBL has also included a tweeter deflector to compensate for the diversity of car interiors. With high-frequency soundwaves guided more directly toward your ears, your music gains a truer, more dynamic sound.

A match for any system

These 2.3-ohm speakers are sensitive enough that you can power them with an aftermarket stereo, but you'll get even better results feeding them power from an outboard amp.

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Product highlights:

  • 4"x6" 2-way speakers (pair)
  • polypropylene Plus One™ woofer cone
  • edge-driven soft balanced dome tweeter
  • power range: 2-40 watts RMS (120 watts peak power)
  • frequency response: 75-21,000 Hz
  • impedance: 2.3 ohms
  • sensitivity: 91 dB
  • top-mount depth: 1-7/8"
  • warranty: 1 year
  • MFR # GX642

What's in the box:

  • Two 2-way speakers
  • 2 Adhesive backed foam gasket strips
  • 2 Standard 4x6 Adapter brackets (with speakers installed)
  • Instruction manual

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4.5 out of 5 stars
16 reviews

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More details on the JBL GX642

Pat M.

Features & specs

General
Speaker Size
Design 2-way
Tweeter Design Balanced Dome
Impedance (Ohms) 2.3
Tweeter Composition Fabric
Woofer Composition Polypropylene
Woofer Surround Rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity (1W at 1 meter) N/A
Sensitivity at 2.83 volts 91
Frequency Response 75 - 21k Hz
Minimum RMS Wattage 2
Maximum RMS Wattage 40
Peak Power Handling (Watts) 120
Top-mount Depth (Inches) 1 7/8
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 0
Mounting Height (Inches) 0.314
Frame Width 4.06
Frame Length 6.204

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 balanced dome tweeter. 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.

Size Classification Note: The GX642 comes mounted on a standard 4x6 bracket (the most common 4x6 application). With the bracket in place the speakers can be top mounted in some Metric 4x6 applications, but most Metric 4x6 installations will require removing the bracket. (In addition to the four bolts holding the bracket in place, it's also glued to the basket and will likely break when removed.) Please refer to the Crutchfield Vehicle Selector to confirm fit in your vehicle.

High-Output Design: The 2.3Ω voice coil design compensates for the high in-line resistance of small gauge factory wiring, extracting more power from factory (or aftermarket) receivers. This results in clearer, richer sound for the listener.

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