Item# GTO608C



210-Watt, 6-1/2" Two-Way Component System

$79.9579.95 per system $199.95
Product Actions
Add to cart options

This item is currently not available.

Does It Fit My Car?

What's in the box?

  • (2) GTO608C Midwoofers
  • (2) Tweeter brackets
  • (2) Caps screws for tweeter brackets
  • (2) Additional alternate tweeter encasements
  • (2) Additional alternate tweeter brackets
  • (2) Additional alternante bracket cap
  • (1) Owner's Manual
  • (2) Grilles, (2) mounting bracket for woofers, (2) buffer pieces for grille/mounting bracket
  • (2) Crossover units
  • (12) Screw clips
  • (2) Tweeters
  • (8) Small clip screws, (2) long clip screws
  • (34) Screws
  • (4) Sets of speaker wire
  • (2) Tweeter encasements

The JBL-only Plus One® woofer cone (patent no. 7,548,631 B2) is exceptionally stiff, lightweight and has up to 25 percent more active surface area than you’ll ever find on competing models of the same size. You get an audible increase in bass output and efficiency.

The GTO608C has a voice-matched outboard component crossover network to ensure optimum transition from the midwoofer to the midrange speaker and the tweeter. You get realistic, hear-every-detail sound.

My-Ti™ tweeters deliver increased power handling, reduced distortion and increased efficiency. A Mylar®/titanium composite dome makes way for open, smooth spacious sound and a seamless transition between the middle and high frequencies.

With a frequency response of 50Hz to 21kHz, the GTO608C reproduces powerful, teeth-rattling bass tones and the highest highs without distortion.

I-Mount™ (patent no. 5,859,917) allows for more precise imaging and simplifies tweeter installation with angle-, surface- or flush-mount options. It’s a tweeter mounting system that makes for one of the easiest and most versatile installations you’ve ever done.

The JBL GTO608C has a tweeter high-cut filter on the crossover that allows you to attenuate the tweeter by -6dB to optimize performance and optimize blend with the the mid/woofer based on installation location.Personal, tweeter level control.

Grand Touring
Frequency Response
Power Handling (RMS)
Power Handling (Peak)
(2.83V@1m) 92dB
Nominal Impedance
2 ohms
Low-Frequency Transducer
PlusOne® HCL™ honeycomb-laiminate cone
HF cut: 0dB/-6dB
Crossover Frequencies
High-Frequency Transducer
25mm (1") edge-driven My-Ti™ dome, pivoting
Mounting Depth Woofer (in)
External Diameter Woofer (mm)
External Diameter Woofer (in)
Mounting Cutout Diameter Woofer (mm)
External Diameter Tweeter (in)
Mounting Depth Woofer (mm)
Mounting Cutout Diameter Woofer (in)
Mounting Cutout Diameter Tweeter (mm)
Mounting Cutout Diameter Tweeter (in)
External Diameter Tweeter (mm)
Mounting Depth Tweeter (in)
Mounting Depth Tweeter (mm)

The latest owner's manuals, quick start guides, and documents.

1 Year Warranty

Products purchased online or from an authorized local retailer and under warranty may qualify for an exchange with a valid receipt.

Purchases made from an unauthorized dealer will not be eligible for exchange.

Request an Exchange

Call us: 1.800.336.4525

  • Sales and pre-sale assistance
  • Technical help
  • Parts and accessories
GTO608C is rated 3.0 out of 5 by 2.
Rated 4 out of 5 by from Clean + low distortion I've had these in my car for 6 months now. They sound super clean and crisp. there's no need for the tweeter boost on the cross over. The only thing I don't like is the lack of lower mid range. I think that's due to my doors design though,, not the speaker.
Date published: 2014-07-03
Rated 2 out of 5 by from Mediocre These components are about average and definitely leave a lot to be desired. Fs = 83Hz, no inductor in the crossover, almost too crisp highs. No low end bass, the factory speakers deliver better here. They do have punchy midbass which is an interesting combination with the stock front speakers. The ease of install is excellent as everything you need is included, but overall sound quality is just so-so. For the price $$ they are alright, but no way I would pay $$$ for them.
Date published: 2013-05-14
  • 2016-10-23T09:51CST
  • bvseo_cps, prod_bvrr, vn_cps_3.4.0
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_2
  • loc_en_US, sid_gto608c, PRD, sort_positive
  • clientName_JBL

are these the best to remedy my 2007 Toyota Sequoia's front door speakers that are producing a rattling sound?  Would I need the whole system, or just two 6-1/2 inch speakers?

Asked by: ron reuss
Thank you for your question on the door speaker, looking at your car speaker guide you can opt out the tweeter and the crossover and just install the 6 1/2 speakers, for cost saving you can look at our GX 6 1/2 series and just get the speaker not the entire set
Answered by: Randy at JBL
Date published: 2016-05-17

do you have to install this in pairs or only which is blown out?

Asked by: Francisco
Thank you for your question, you install these as separate and save the other one for later use.
Answered by: Randy at JBL
Date published: 2016-04-19

Hello, What is the woofer surround made from on the GTO608C and the other GTO series speakers?  Foam? Rubber? Cloth? Thanks, Ryan

Asked by: rcg13
Answered by: tellme
Date published: 2016-03-22
  • 2016-10-23T09:55CST
  • bvseo_cps, prod_bvqa, vn_cps_3.4.0
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_3
  • loc_en_US, sid_gto608c, PRD, sort_recentAnswersFirst
  • clientName_JBL

Store Locator

No Online Dealer's available for this product

Find a Store Near You

The Store Locator is designed to help you find the closest store near you.

Click a store in the list or on the map to view details.