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JBL GTO8628 (GTO-8628)

6" x 8" / 5" x 7" Grand Touring Series 2-way Car Speakers

4.3

(6 reviews)

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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" x 8" (also fits in 5" x 7") Grand Touring Series 2-way Car Speakers
  • Power Handling:
    • Peak: 360 watts per pair / 180 watts each
    • RMS: 120 watts per pair / 60 watts each
  • Plus One cone material
  • Mylar/titanium composite dome tweeters
  • Frequency response: 50-21,000 Hz
  • 2 ohms impedance
  • Sensitivity: 92dB
  • Cutout dimensions: 4-9/16" x 7-3/16"
  • Top-mount depth: 2-1/4"
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Priced Per Pair

Product History:
JBL GTO8628 (GTO-8628) thumbnail
(newest, current model)
JBL GTO8627 thumbnail
(previous model, replaced by JBL GTO8628 (GTO-8628))
Speaker Specifications
Speaker Size6" x 8" (also mounts in most 5" x 7" locations)
Design2-way
Tweeter DesignDome
Tweeter CompositionMylar/Titanium Hybrid
Woofer CompositionPlus One
Woofer SurroundN/A
Peak Power Handling180 watts
RMS Power Handling60 watts
Sensitivity92 dB
Frequency Response50 - 21,000 Hz
Impedance (Per Voice Coil)2 ohms
Top-Mount Depth2-1/4"
Bottom-Mount DepthN/A
Cutout Dimensions4-9/16" x 7-3/16" 
Speaker GrillesNo
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for JBL GTO8628 (GTO-8628)
Average Customer Rating is 4.3 out of 5 stars:
4.3
based on 6 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
.
.
50%
4 star:
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.
33%
3 star:
.
.
17%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
4.7
Value
5.0
Features
4.7
Design
4.8
Usability
4.8
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
September 5, 2011 Good mids; limited bass
Review by
Dickybird from Main Line, PA
Overall
Durability
Value
Features
Design
Usability
Sound quality is good, but i was expecting more in the bass department. Important to note that i am not running an amp with these speakers.
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March 1, 2011 Quality Sound
Review by
Sound Enthusiast from Bay Area, California
Overall
Durability
Value
Features
Design
Usability
As expected, the engineers at JBL have produced a very natural sounding speaker. These speakers have a balanced natural sound to them. When driven by a quality head unit and amp, these speakers can be driven hard while maintaining their sound integrity. The balanced design allows the listener to fine tune or tailor the sound to his or her preference. JBL produces some of the best drivers and speakers for live performance venues. They obviously engineer some of the best car audio speakers, too!
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October 19, 2010 Big sound for a small speaker
Review by
David from St. George, UT
Overall
Durability
Value
Features
Design
Usability
Listed as a 6 x 8 speakers, but they truly are a 5 x 7 that fits original mounts. These speakers provide great bass response, the built in cross-overs and the adjustable tweeters make directing your sound correctly a breeze. I use a aftermarket Alpine with a 45 watt amp with Infinity 5 x 7 front and these GTO-8628 in the rear. Sonic's price made these speakers a no brainer.
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October 13, 2010 entry level
Review by
B from the Port, Michigan
Overall
Durability
Value
Features
Design
Usability
for the price i couldnt beat it. decent bass responsce, mids were alittle muddy at high volumes, as with highs. a good head unit and amp should fix that hopefully. overall im happy with them, but i would get the 4 0r 5 way pioneers if i had to order again. id say middle of the road and price point for most, not awsome, deffinatly not bad. wayy better than stock :)
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April 27, 2010 VERY accurate speakers for the price
Review by
smokey from indianapolis, in
Overall
Durability
Value
Features
Design
Usability
these are very accurate speakers (as mentioned above)...
Woofer Review:
the bass response is tight...no distortion to speak of...at full volume with the bass i get punchy, tight sounds that really give the music more of home stereo feel (which is what i want)...the vocals are very strong and don't get distorted at high levels...

Tweeter Review:
The way that the tweeters are designed is very practical...on normal setups it seems that the crispy highs get driven right into my shins...to the point of not really noticing them..with these GTOs you can adjust the angle of the tweeter so that the sounds can be driven upwards towards the driver so the highs don't get lost in the bass....and the tweeters are really sweat...again no fuzz or distortion just crispy highs...

i have a amp on order for them, but really off of the head unit they are A1 components....I HIGHLY recommend these to budget shoppers and audiophiles alike...
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View All 6 Reviews for JBL GTO8628 (GTO-8628)
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.
 ProductPriceAdd?
20 ft. of 16 AWG KICKER X-Series Speaker Wire20 ft. of 16 AWG KICKER X-Series Speaker Wire
Get high quality sound from Kicker's twisted-pair, true to gauge speaker wire.
$19.99
50 ft. of 14 AWG StreetWires Speaker Cable50 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.
$29.99
50 ft. of 16 Gauge Monster XLN Series Speaker Cable50 ft. of 16 Gauge Monster XLN Series Speaker Cable
Upgrade to clean and clear sound with Monster Cable's Xtra Low Noise (XLN) construction.
$35.00
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.
 ProductPriceAdd?
Dynamat Xtreme Speaker KitDynamat Xtreme Speaker Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!
$21.99
Dynamat Dynaxorb Speaker PakDynamat Dynaxorb Speaker Pak
Revolutionary damping material designed to prevent distortion caused by the back wave of a speaker interfering with the front wave.
$19.99
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat products!
$18.99
Ballistic Speaker KitBallistic Speaker Kit
Eliminate speaker distortion, road noise, and rattles with this sound dampening material from Ballistic.
$15.99
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.
 ProductPriceAdd?
Door Panel & Upholstery Remover ToolDoor Panel & Upholstery Remover Tool
The ideal tool for removing your car's door panels to replace you speakers!
$11.99
Universal Window Handle Remover ToolUniversal Window Handle Remover Tool
Designed to easily remove the manual window handles without breaking any interior pieces.
$4.99
Universal Wire Puller & GrabberUniversal Wire Puller & Grabber
Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!
$6.99
16-14 AWG Butt Connectors16-14 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.
 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
Main Product
 ProductPriceAdd?
JBL GTO8628JBL GTO8628 (GTO-8628)$59.95

Product Summary

Manufacturer: JBL
Model number: GTO8628
UPC: 050036930383
Weight: 6.50 lbs
Internal SKU: gto8628
Internal product ID: 17732

Price Information

$119.95

–$60.00

$59.95

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Customer Testimonial

The speakers I got were as good as the reviews and specs said they were! Thanks Sonic for the quick delivery. Ordered on Tuesday, received Wednesday. Thanks Sonic, you guys rock!

- ClarityJunkie from Fremont, CA

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