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JBL GTO638

6-1/2" or 6-3/4" 3-Way Grand Touring Series Loud Speakers (GTO 638, GTO-638)

  • 4.4

(12 reviews)

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Price Information

$149.95

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$74.95

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Professional JBL Sound:

With the long history of professional audio equipment manufactured my JBL, it is no surprise that the Grand Touring Series (GTO) produce some of the finest sound available for car speakers. By integrating the majority of JBL's top car speaker technology, these speakers are able to effectively deliver truly stunning audio, while keeping the price affordable for everyone. For those that are looking for a quality car speaker that will not only sound great, but also keep more money in your pockets. Put your trust in JBL and these Grand Touring Series speakers.

Tweeter-Level Adjustment with Unipoint:

The tweeters on the GTO series speakers are an excellent example of JBL's advanced technology. Made from My/Ti (Mylar and Titanium composite), the tweeters offer a higher power handling, greater efficiency, and reduced distortion. To direct that sound where you want, JBL has designed a Unipoint rotating tweeter pod that allows the tweeter to be directed towards the listener. This results is better imaging and a more accurate sound stage. To top of the tweeter technology, JBL engineered a tweeter-level control switch that adjusts the tweeter dB output. This allows for more sound adjustments after the speaker is installed.

  • 6-1/2"/6-3/4" Grand Touring Series 3-Way Car Speaker System
  • Power Handling:
    • Peak: 360 watts per set / 180 watts each side
    • RMS: 120 watts per set / 60 watts each side
  • Patent pending Plus One woofer cones
  • Mylar/titanium composite dome tweeters
  • Can be safely powered by any headunit
  • Sensitivity: 92 dB
  • 2 ohms impedance
  • Frequency response: 50-21,000 Hz
  • Top-mount depth: 2"
  • Cutout diameter: 5-1/8"
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Priced Per Pair

Product History:

JBL GTO638 thumbnail
(newest, current model)
JBL GTO637 thumbnail
(previous model, replaced by JBL GTO638)

Sonic Electronix, Inc. can only ship JBL products within the United States of America.

Speaker Specifications
Speaker Size 6-1/2" (also mounts in 6-3/4" w/ included brackets)
Design 3-way
Tweeter Design Dome
Tweeter Composition Mylar/Titanium Hybrid
Woofer Composition Plus One
Peak Power Handling 180 watts
RMS Power Handling 60 watts
Sensitivity 92 dB
Frequency Response 50 - 21,000 Hz
Impedance (Per Voice Coil) 2 ohms
Shallow Mount Installation Yes
Top-Mount Depth 2"
Cutout Dimensions 5-1/8" x 5-1/8" 
Speaker Grilles Yes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration 1 year
Labor Warranty Duration 1 year
Warranty Provider Manufacturer
Customer Review Summary for JBL GTO638
Average Customer Rating is 4.4 out of 5 stars:
  • 4.4
based on 12 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
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83%
4 star:
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0%
3 star:
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0%
2 star:
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8%
1 star:
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8%
what's this?
Average Attributes Rating:
Durability
  • 4.3
4.3
Value
  • 4.4
4.4
Features
  • 4.7
4.7
Design
  • 4.8
4.8
Usability
  • 4.6
4.6
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
September 9, 2010 Good speakers
6 of 8 people found the following review helpful:
Review by
Mr. Mike from Mt. Juliet ,Tn.
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
Bought these to drive off HU and was not happy. Decided to put in rear and put CDT coax in front and drive with Kenwood 4 ch. amp. Well once I drove them with amp I discovered why I did not like running off HU. They are power hungry and once I had enough power to them combined with CDT's in front they sound unreal! I have always liked JBL and continue to like them. Just make sure you drive these with amp and give them the juice they need. If you do this they will perform.
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March 5, 2012 Rockn!
2 of 2 people found the following review helpful:
Review by
Roger from Osceola,In
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
I would recommend these speakers for 2 reasons. I bought them without ever hearing them and they are a JBL product pretty much the only speakers I would ever own. If only Yamaha would now make car stereos the world would be a better place lol.
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April 17, 2013 JBL GTO638 vs polk audio dxi6500
Review by
Vegeta700 from Bronx, NY
Overall
  • 5.0
Durability
  • 5.0
Value
  • 4.0
Features
  • 5.0
Design
  • 4.0
Usability
  • 5.0
I bought 2 pairs of these bad boys for my car. They sound awesome, great highs, enough of mids and you can get some low's but not too much. I have all 4 speakers hooked up to a 4 channel 1000 Watt amp at 125 rms for each channel. They are pretty loud when i set my volume at 15 when the radio can hold up to 50 on the radio. After 30 i get distortion. I'm really happy with my product and i do recommend these speakers and it will sound even sweeter with an amp. By the way i also own 2 pairs of the polk audio dxi6500 and i was disappointed how i spent more $$$ on them and they dont sound as good as these JBL. 2 tweeters went out on my polk audio's and i was stuck with only mids and horrible low's. they couldn't handle the power of the amp and it sounded lower than the JBL's.
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March 19, 2013 Great tweeters
Review by
spritemast from lithonia, ga
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
The sound from these are amazing ....I had these with a 10w amp and a 60w rms amp ...it sounds good with 10 but 60 is fantastic ....soloooo clear ...you will not b disappointed!!!
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March 15, 2013 WOW
Review by
ben from olalla, WA
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
recently bought these mated them to the same 5.25"'s and put them on a gto1004 from JBL... these sound (to me) better .. cleaner, deeper, all around than the 750$ focal's i was going to use. running them on 150W rms and they love it. for the money i couldn't ask for a better sounding speaker, keep up with the JBL 1224's i have running 1100 watts each! makes the BOSE system i had in my avalanche sound like childs play. thanks sonic for stocking a great product... huge jbl fan now
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View All 12 Reviews for JBL GTO638
Speaker Wire
Upgrade your factory speaker wire to aftermarket speaker wire and hear the difference! Using thicker gauges, newer technology, and higher quality materials, aftermarket speaker wire is key to upgrading the sound in your car.
  Product Price Add?
20 ft. of 16 AWG KICKER X-Series Speaker Wire 20 ft. of 16 AWG KICKER X-Series Speaker Wire
Get high quality sound from Kicker's twisted-pair, true to gauge speaker wire.
$17.95
50 ft. of 14 AWG StreetWires Speaker Cable 50 ft. of 14 AWG StreetWires Speaker Cable
Streetwires Super Cable provides a zero-grip insulation for a smooth install as well as true gauge twisted wire construction.
$39.99
Sound Dampening Material
Get optimal sound from your new speakers with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
  Product Price Add?
NVX SDSK2 Speaker Kit NVX SDSK2 Speaker Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!
$14.99
NVX SDRLR1 Sound Dampening Rubber Roller NVX SDRLR1 Sound Dampening Rubber Roller
Install your Sound Dampening with ease! This heavy duty rubber roller is designed specifically to install your NVX products!
$8.95
Speaker Baffles, Spacers, and Depth Extenders
Mount your speakers in the location that you need with these speaker spacers, extenders, and adapters.
  Product Price Add?
Speaker Baffles for your Speakers Speaker Baffles for your Speakers
Enhance the sound of your speakers with these easy to install speaker baffles.
$9.99
1/2" Depth Extender for 6-1/2" Speakers 1/2" Depth Extender for 6-1/2" Speakers
Need just a little more room to install your new speakers? These 1/2" spacers are just what you are looking for.
$8.99
Installation, Tools & Accessories
Get all of the tools and accessories to install your new speakers like a professional, or take your car to an expert and have them installed by redeeming professional installation cards.
  Product Price Add?
Car Stereo and Speaker Installation Tool Kit Car Stereo and Speaker Installation Tool Kit
Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.
$14.99
Door Panel & Upholstery Remover Tool Door Panel & Upholstery Remover Tool
The ideal tool for removing your car's door panels to replace you speakers!
$11.99
Universal Window Handle Remover Tool Universal Window Handle Remover Tool
Designed to easily remove the manual window handles without breaking any interior pieces.
$11.99
Universal Wire Puller & Grabber Universal Wire Puller & Grabber
Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!
$8.99
22-18 AWG Butt Connectors 22-18 AWG Butt Connectors
These red butt connectors are perfect for connecting the speaker wire when replacing your factory speakers!
$4.99
16-14 AWG Butt Connectors 16-14 AWG Butt Connectors
These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!
$4.99
Tone Generators and Sound Testing Equipment
Optimize your new system's sound quality by testing and calibrating all of your components with these items.
  Product Price Add?
Scosche SPL Meter Scosche SPL Meter
Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.
$24.99
AutoSound 2000 CD-101 AutoSound 2000 CD-101
Low frequency test CD
$12.99
AutoSound 2000 CD-102 AutoSound 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-103 AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99
Main Product
  Product Price Add?
JBL GTO638 JBL GTO638 $74.95
Related products
JBL GTO638 + Sound Dampening
6.5"/6-3/4" Grand Touring Series 3-Way Car Speaker System • 180 Watts • 60 Watts RMS • Plus One Woofer • Mylar/Titanium Composite Dome Tweeters • 2 Ohms • Included Sound Dampening

Product Summary

Manufacturer: JBL
Model number: GTO638
UPC: 050036930291
Weight: 6.00 lbs
Internal SKU: gto638
Internal product ID: 17735