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JBL GTO8628

6" x 8" / 5" x 7" 2-Way GTO Grand Touring Series Coaxial Car Speakers

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List price $119.95

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$69.95

with warranty A Pair

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JBL GTO8628

6" x 8" / 5" x 7" 2-Way GTO Grand Touring Series Coaxial Car Speakers

$69.95

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Bundled Savings with this Product

20% Off Speaker Installation Kit with Purchase!

Get everything that you need to optimize your JBL speaker installation with the Sonic Electronix Speaker Installation Kit. Premium NVX Sound Deadener and Scosche Stereo Tool Kit. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.

6.60

17732

1206

JBL GTO8628

$69.95

+

20% OFF

NVX Speaker Installation Kit

$32.99

Special Price $26.39 ($32.99 if purchased separately)

NVX Speaker Installation Kit

• Everything You Need for a Smooth Speaker Install
• NVX SDSK2 Sound Dampening Speaker Kit
• Two 10" x 10" Pieces
• NVX SDRLR1 Sound Dampening Rubber Roller
• Scosche TK12 Complete Car Stereo Tool Kit
• Includes Wire Stripper/Cutter, Screwdriver, RCA Cable Runner, Panel Removal Tool, Test Light, and other Installtion Accessories

Save 25% on a Install Tool Kit!

Save 25% off on the Scosche TK12 install tool kit with your purchase! This kit includes a voltage test light, wire stripper and many other tools you need to install your system!

4.25

17732

500

JBL GTO8628

$69.95

+

25% OFF

Scosche TK12

$16.99

Special Price $12.74 ($16.99 if purchased separately)

Scosche TK12

12V Car Stereo Installation Kit • Includes Wire Stripper/Cutter, Screwdriver, RCA Cable Runner, Panel Removal Tool, Test Light, and other Installtion Accessories • Perfect for Installing a First Car Stereo

25% off on Sound Dampening!

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5.00

17732

102

JBL GTO8628

$69.95

+

25% OFF

NVX SDVK4

$19.99

Special Price $14.99 ($19.99 if purchased separately)

NVX SDVK4

• Eliminates Road Noise
• Quiets Vibrations
• Stops Rattles
• Increases SPL
• Reduces Heat
• Simple To Install
• Easy To Form Aluminum
• Four Step Peel and Stick Installation
• One 18" x 32" Piece

Get 25% off Sound Dampening Speaker Kit with Purchase!

For a limited time, get 25% off of the NVX SDSK2 Speaker Kit with a qualifying pair of speakers! Sound dampening will eliminate rattles, insulate against heat, and also improve the sound and output of your speakers!

3.75

17732

100

JBL GTO8628

$69.95

+

25% OFF

NVX SDSK2

$14.99

Special Price $11.24 ($14.99 if purchased separately)

NVX SDSK2

• Eliminates Road Noise
• Quiets Vibrations
• Stops Annoying Rattles
• Increases SPL
• Reduces Heat
• Simple To Install
• Peel and Stick Installation
• Two 10" x 10" Pieces

(Offer 1 of 4)

Combined Total Price

$96.34

You Save $6.60

JBL Store

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.



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.


JBL GTO939

General Features

  • 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 Honey Comb Laminate (HCL) cone
    • Plus One Cone adds up to 25% more surface area to the cone
  • 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 GTO8629 thumbnail
(newest, current model)
JBL GTO8628 thumbnail
(previous model, replaced by JBL GTO8629)
JBL GTO8627 thumbnail
(previous model, replaced by JBL GTO8628)

Speaker Specifications

Series
This is the manufacturer product line of speakers.
GTO (JBL)
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Pair
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
6" x 8" (also mounts in most 5" x 7" locations)
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Dome
Tweeter Size
Refers to the size of the tweeter. Typically, smaller tweeters produces less output with higher frequency response.
1"
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Mylar/Titanium Hybrid
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Honeycomb Laminate (HCL)
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Rubber
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
180 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
60 watts
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
92 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
50 - 21,000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
2 ohms
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
2-1/4"
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
4-9/16" x 7-3/16" 
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
No
Number of Speakers
This is the number of speaker that is included in the package. Each purchase will result in receiving the number of speakers indicated here. Please note that some items will have multiple woofers in the same enclosure. For sets of component speakers, this number will refer to the number of sets of speakers (For example, 2 would indicate the purchase includes 2 woofers and 2 tweeters).

Please refer to the product image and description for further details about the speaker.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
73%
4 Star
18%
3 Star
9%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.7
Value
4.9
Features
4.6
Design
4.8
Usability
4.9
bubblez

Tyler TX

Overall
Durability
Value
Features
Design
Usability
AWESOME HIGHS!

November 4, 2014

These speakers have the best tweeters of any speaker I have ever bought and I have had kicker, alpine, polk, RF, clarion, pioneer, and more. Such a clear crisp high it gave me goose bumps the first time a turned them up. I have a subwoofer so It doesn't rally mater to me but Bass is ok, About the same as my stock ford speakers but a little clearer. Fit right into my f250 door holes and the stock screw holes lined up to. After I listened to the pair I bought for the front I ordered two more for the back very happy.

24 of 39 found this helpful

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John

El Paso,Tx

Overall
Durability
Value
Features
Design
Usability
Ford Ranger Supercab

September 13, 2013

I installed these speakers in the rear and they sound great. With the factory stereo they gave a lower tone sound than the factory fronts. The highs when comparing front to back were crisper in the back but when played loud the factory speakers seemed on par at the higher end. Bass was much of an improvement over factory.Where the speakers really shined is when I installed a JVC KW R500 double din stereo. It gave much more power that was needed for the JBL's to show their true colors. JBL rocks with crisp highs and decent bass to keep me happy.

20 of 31 found this helpful

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Alan

Whitehall, MT

Overall
Durability
Value
Features
Design
Usability
Great Speakers

November 10, 2012

I have always liked JBL speakers since I built a home stereo years ago in the 80s. Great speaker for the car. Everyone that has heard my system likes there sound.

24 of 40 found this helpful

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smokey

indianapolis, in

Overall
Durability
Value
Features
Design
Usability
VERY accurate speakers for the price

April 27, 2010

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...

22 of 36 found this helpful

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arm

CA

Overall
Durability
Value
Features
Design
Usability
review

January 2, 2015

The clearness of the voice in very good the bass is ok. Theses speakers are not really made for bass. Also, due to high bass the tweeter which is located on top of the cone, gets hit and makes a very nasty noise!!! I'm running a 4-channel amp with these speakers.

22 of 37 found this helpful

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ME_MYSELF_I

Home ca

Overall
Durability
Value
Features
Design
Usability
jbl gto8628

May 7, 2013

good speakers miss on the low to ultra lows im running them in my doors off a amp sound clear clean just about what i expected for a 6x8

22 of 38 found this helpful

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Michael

Anaheim, CA

Overall
Durability
Value
Features
Design
Usability
JBL GTO8628 Awesome Speakers

September 29, 2012

These speakers rock. The bass sounds great, mids and highs all sound great. These replaced some 4x6 speakers in a 04 silverado ext cab with a little trimming and use of the provided spacer between the spkr and door metal The difference is amazing. I would recommend these to anyone looking to improve the sound in there vehicle.

18 of 32 found this helpful

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Borat

Union, NJ

Overall
Durability
Value
Features
Design
Usability
Very nice and delicious

September 23, 2014

I make purchase on these speakers. They are a very nice!! I like

20 of 37 found this helpful

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John

Virginia Beach, VA

Overall
Durability
Value
Features
Design
Usability
Great speakers

March 30, 2014

I used these in my 2010 Ford FX4 dbl cab with Sony system and Naval. Replaced the fronts with there 5x7 components, these in the rear and replaced the stock bass with the kicker soundgate. This system is now night and day. These speakers are awesome........

25 of 47 found this helpful

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maddmaxx

Cartersville, Ga.

Overall
Durability
Value
Features
Design
Usability
Rockin'

November 1, 2013

These are really good for the money. I bought four for my extended cab Mazda B-3000 and they are excellent. If you don't have a ton of cash but want great sound these are the speakers to buy. Sonic has great prices and fast shipping.

17 of 31 found this helpful

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Dickybird

Main Line, PA

Overall
Durability
Value
Features
Design
Usability
Good mids; limited bass

September 5, 2011

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.

23 of 43 found this helpful

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David

St. George, UT

Overall
Durability
Value
Features
Design
Usability
Big sound for a small speaker

October 19, 2010

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.

20 of 37 found this helpful

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B

the Port, Michigan

Overall
Durability
Value
Features
Design
Usability
entry level

October 13, 2010

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 :)

21 of 39 found this helpful

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rob

montclair,ca

Overall
Durability
Value
Features
Design
Usability
best speakers

December 21, 2009

the best bass for 6x8 and the sound is aaa+++

21 of 39 found this helpful

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Denis

Panama City, FL

Overall
Durability
Value
Features
Design
Usability
Good Performance

December 27, 2014

Having had older model JBL GTO's, these have similar voicing.... good bottom end with deep kick, neutral midrange, but the poly/ titanium tweeters need taming a bit. This was without attenuating the tweeters via the switch so that's still an option. I left it as is since they were installed in the upper doors off-axis (Ford Mountaineer) and just pivoted the tweeter angles to point more towards the dome light. The upper frequencies on the EQ were gently sloped down until they sounded more natural. The bottom end was cut off using a hpf of 100hz @ -12db. They can handle going a bit lower to fullrange, but sound cleaner with that particular xover point while still having more than enough upper bass to blend with a small sub.

Powered by a 65x4 US Acoustic amp, they handle power well and don't reach breakup until the deck is turned up to max at which that point, they're LOUD! Mated with an Infinity 860W bridged on the same amp's rear, this was a great match. The overall sound is very good for a deck with limited EQ & Xover, no time alignment.

These are more than worth the purchase if you're on a tight budget. The adjustability is about as close as you can get to having a component set.

18 of 34 found this helpful

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Cory

Canada

Overall
Durability
Value
Features
Design
Usability
Great

May 15, 2014

Great product exactly as described, the sound great!
Thanks a lot!

21 of 43 found this helpful

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Jeff

Hartsville, TN

Overall
Durability
Value
Features
Design
Usability
Sound Great

April 3, 2015

Of all the 6x8 speakers i've had in my life...i would put these near the top...they sound better than the Kickers i have in my other vehicle and sound as good as the Alpines i had in another vehicle....for the money, these are GREAT!!!

7 of 17 found this helpful

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Zplox

Placentia, California

Overall
Durability
Value
Features
Design
Usability
Best speakers ever

March 6, 2015

I never have had a car speaker like these, not expensive and very powerfull

11 of 26 found this helpful

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Denis

Panama City, FL

Overall
Durability
Value
Features
Design
Usability
JBL Sound

December 27, 2014

The overall tonality & voicing on these are reminiscent of the older series GTO which is a good thing! What's even better is the ability to orient the tweeter to aim towards the dome light or wherever, plus you can attenuate the tweeter via a switch on the housing. When you amp these & high pass near 100hz (if mated to a sub), then the attenuation switch comes in handy to dial back on the highs a bit. They pump out pretty good bass, but I wouldn't add a lot of power to them fullrange. Fine for deck or small amp power (40 watts) in that regard. With an amp & crossed upwards, these suckers get pretty loud before breaking up.

Overall, these are great speakers for the cost. The poly/ titanium tweeters have quite a bit of sizzle, but can be toned down via switch or pivoting off-axis. Bout as good as you can get without using a component set with separate tweeter. I'd buy these again!

12 of 28 found this helpful

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rodney

Columbus, GA

Overall
Durability
Value
Features
Design
Usability
Nice speakers

February 27, 2015

Sound from these speakers are nice and clear. They have a nice mid range with decent bass but I got the speakers for the highs and mids. They are great for those. I have subs for the low end. I do turn off my subs some times and they do sound good as full range speakers also

11 of 27 found this helpful

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Will

Palm Bay, Florida

Overall
Durability
Value
Features
Design
Usability
Great speakers! Sound Awesome

March 18, 2013

These speakers are great! I ordered them because they were the stock size for my 98 mustang, and I they seemed higher quality than most other. The rotating tweeter is great, and the woofer is able to handle some pretty good base. Because of these speakers, I actually decided to buy more JBL speakers for the back (I went with GTO938 speakers which were 6x9) Together they sound awesome

Really no downside to these speakers, they're just great. Only thing I'd consider replacing them with would be a JBL Component set

13 of 32 found this helpful

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Sound Enthusiast

Bay Area, California

Overall
Durability
Value
Features
Design
Usability
Quality Sound

March 1, 2011

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!

10 of 28 found this helpful

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Accessory Tools and Products

Accessories added

Streetwires 25 ft. of True Spec 12 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $44.95

Belva 23 ft. of True Spec 12 Gauge Speaker Wire

100% Copper Clad Aluminum, high strand count with ultra-flexible PVC blended jacket for easy installation

Your Price $14.99

NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!

Your Price $14.99

Dynamat Xtreme Speaker Kit 10415

Enough sound dampening for 2 speakers!

Your Price $17.95

Stinger Roadkill Speaker Kit

Use this to eliminate rattle from your speakers!

Your Price $13.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $16.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $6.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

3 in 1 Wire Quick Splice T-Tap and Butt Connector Crimper + Wire Cutter

Used for cutting copper and aluminum wires up to 8 gauge.

Your Price $29.99

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!

Your Price $7.99

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Browse 1 question and 5 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
I am having trouble finding speakers that fit my Pathfinder. This site said these will. Hope they are right. I chose this particular speaker based on wattage rating and price.
Stephen M on Apr 15, 2015
really a good company and these speakers rock
larry w on Nov 20, 2014
price and good reviews
david s on Jan 6, 2015
needed some quality here
Isaac T on Aug 11, 2014

Product Summary

Manufacturer

Model Number

GTO8628

UPC

050036930383

Weight

6.50lbs

Internal SKU

gto8628

Internal Product ID

17732

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: JBL GTO8628