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6" x 8" / 5" x 7" 2-Way Car Component Speakers System

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List price $229.95

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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.

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.


General Features:

  • 6" x 8" Grand Touring Series 2-way Component Car Speakers System
  • Power Handling:
    • Peak: 420 watts per set / 210 watts each side
    • RMS: 140 watts per set / 70 watts each side
  • Plus One cone material
  • Low-distortion, low-Q woofer
  • Outboard passive crossover with tweeter-level adjustment, poly caps and tweeter protection
  • Mylar/titanium composite dome tweeters
  • I-Mount and Starfish mounting system
  • Frequency response: 50-21,000 Hz
  • 2 ohms impedance
  • Sensitivity: 92 dB
  • Cutout dimensions: 7-3/16" x 4-15/16"
  • Top-mount depth: 2-1/4"
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Priced Per Complete Component System: 2 midwoofers, 2 tweeters and 2 crossover networks.

Product History:

JBL GTO8608C thumbnail
(newest, current model)
JBL GTO8607C thumbnail
(previous model, replaced by JBL GTO8608C)

Speaker Specifications

This is the manufacturer product line of speakers.
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.
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)
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 Component System
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.
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.

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.
Plus One
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.
210 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.
70 watts
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.
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
7-3/16 x 4-15/16 
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.
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

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Virginia Beach, VA

Great Product

March 30, 2014

10 Ford FX4 dbl cab. Replaced the Sony upgrAde speakers with these. Not only is the sound cleaner but the low mids are louder and the highs are crisper. The fact that they are 2 ohm allows the AMP to increase it's rated RMS power. What a product!

21 of 37 found this helpful

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winchester, MA

Great Speakers!

May 11, 2010

I have owned these speakers for six months and they are great. The highs, mids, and lows sounds fabulous. The sound is very crisp and clear. JBL is an excellent sound system company and they proved this to me with these speakers because they really do bring my music to life and i have had a friend comment that it feels like hes up front at a concert. I would definitely buy this product again top notch and sonic electronix delivered it on time.

21 of 38 found this helpful

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Fort Smith, AR

Outstanding sound and performance

April 13, 2014

I installed these speakers in the front doors of my 2011 Ford Fusion, which is definitely not an easy task, and I couldn't be more happy with the sound. I am truly impressed with how clear, crisp and detailed the music is, and I'm even playing it through a LOC and a factory radio. I installed my speakers with the JBL504EZ amp, a perfect combination. Super easy install. What impresses me the most is that the speakers do not fatigue your ears, despite the fact that the tweeters are titanium. They really are clear and loud and I would absolutely recommend them to any Ford owners. Very reasonable price for the quality you get.

18 of 34 found this helpful

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Great Sound

February 1, 2014

The speakers are pretty nice. They have a great range of sound and really hit the highs. I put these in a 2006 Ford Ranger XL and they sounded great, especially for the price.

16 of 31 found this helpful

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Roseburg, OR

best sounding speakers

February 2, 2015

great fit awesome sounding they sound better than my MB quarts speakers

13 of 26 found this helpful

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Union, New Jersey

Great product, great price

September 17, 2014

I bought a pair of JBL component speakers and i was extremely impressed with the product and the quality of the brand. The day after i installed the component speakers I decided to order the coaxials for ny rear speakers. I have a 2008 mazda 3 hatch with 2 12" kickers in a ported box and these speakers supplement the bass extremely well while supllying crystal clear highs and decent mids. Im currently running the speakers through my stock head unit and plan on reamping them soon. Great product. Recommended for anyone looking to upgrade for cheap.

15 of 30 found this helpful

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Whitehall, MT

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.

18 of 36 found this helpful

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Sounds Amazing !

January 16, 2014

I replaced the Infinity 6x8 3-way speakers with these and they out sound anything else I have used. Concert sounding from your car. Done.

16 of 33 found this helpful

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Overland Park, KS

I love JBL!

September 24, 2013

These are some great speakers, and at great value too! Too bad they are discontinued... The tweeters and really fire out some loud and clear sound! Just don't turn it up to loud, or you'll hurt your ears, lol (before you break your speakers). 5 stars!

14 of 29 found this helpful

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Litchfield, CT

Loud and clear

November 23, 2012

I drive a convertible Mustang and was desperately in need of new sound that would be loud enough for top down highway driving. Success. These speakers f***ing rock. No noticeable distortion yet and crystal clear highs.
Upon opening the box I was amazed by the sheer number of parts, however after the initial shock I was pleased with the variety of mounting options. Great buy. 100% recommended.

15 of 31 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

12-10 AWG Butt Connectors

These yellow butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers.

Your Price $6.99

12-10 AWG Yellow T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

Your Price $4.49

12-10 AWG Quick Disconnect Connectors

These yellow quick disconnect connectors make it easy to connect and disconnect speaker wire your to your new aftermarket speakers!

Your Price $6.99

NVX SDDK12 Door Kit

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

Your Price $49.99

Dynamat Xtreme Door Kit 10435

Enough sound dampening to cover most doors!

Your Price $59.99

Stinger Roadkill Door Kit

Use this to eliminate rattle from your doors!

Your Price $46.99

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

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

Your Price $6.99

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

Browse 2 questions and 9 answers
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Why did you choose this?
Sonic Electronix Store
I have always liked JBL products and I read the reviews on these component speakers.... well how could I go wrong. Plus I just put in a kick-butt system, just needed the speakers. Could not find this system any place less or equal to the price offered here.
Theodore C on Mar 31, 2015
Great product fair price
Johnny P on Dec 28, 2014
Their JBL's enough said.
Derek E on Mar 21, 2015
one off the best sound quality speakers for the price
nick c on Dec 28, 2014
what is the surround for the JBL GTO8608C made of, rubber or ???
Don B on Aug 25, 2014
Best Answer: I dont know what its made of but the product is fantastic.100% recommended
Reply · Report · Adam L on Aug 26, 2014
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Product Summary


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Internal Product ID


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 GTO8608C