600W Peak (200W RMS) 6x9" GTO Series 3-Way Coaxial Car Speakers

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• 300 watts Peak Each, 100 watts RMS Each
• 1" Silk Edge-Driven Dome Tweeters
• Carbon-injected cone material
• Impedance: 3 ohms
• Sensitivity: 94 dB

Learn more about the gto939

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Product Highlights

• 300 watts Peak Each, 100 watts RMS Each
• 1" Silk Edge-Driven Dome Tweeters
• Carbon-injected cone material
• Impedance: 3 ohms
• Sensitivity: 94 dB


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Authorized dealer

Product Details:

  • 6" x 9" GTO Series 3-way Coaxial Car Speakers
  • Power Handling:
    • Peak: 600 watts per pair / 300 watts each
    • RMS: 200 watts per pair / 100 watts each
  • Carbon-injected cone material
  • Butyl Rubber speaker surround
  • 1" Silk Edge-Driven Dome Tweeters
  • Patented Plus One glass fiber woofers
  • UniPivot and angled tweeter
  • Vented magnet assemblies
  • Adjustable tweeter level
  • Top-mount Depth: 2-7/8"
  • Cutout Dimensions: 5-7/8" x 8-5/8" 
  • Impedance: 3 ohms
  • Frequency Response: 46 - 21000 Hz
  • Sensitivity: 94 dB
  • Grilles included
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Per Pair

Product history:

JBL GTO939 thumbnail
(newest, current model)
JBL GTO938 thumbnail
(previous model, replaced by JBL GTO939)
JBL GTO937 thumbnail
(previous model, replaced by JBL GTO938)

Specifications & Details

Speaker Specifications
GTO Series
Priced Per
Speaker Size
6" x 9"
3-way Coaxial
Tweeter Design
Edge-Driven Dome
Tweeter Size
Tweeter Composition
Woofer Composition
Woofer Surround
Butyl Rubber
Peak Power Handling
300 watts
RMS Power Handling
100 watts
Total PEAK Per Pair/Set
600 watts
Total RMS Per Pair/Set
200 watts
94 dB
Frequency Response
46 - 21000 Hz
Impedance (Per Voice Coil)
3 ohms
Shallow Mount Installation
Top-Mount Depth (Mounting Depth)
Bottom-Mount Depth
3 11/16"
Cutout Dimensions
5-7/8" x 8-5/8" 
Number of Speakers
CTA-2031 Compliant
General specifications
Marine Certified
Hi-Res Certified
Speaker Grilles
Includes Damping Kit
without Damping Kit
What is in the box?
User manual
WITB: Speakers
Speakers (2)
Grilles (2, attached)
Mounting screws (8)
Mounting clips (8)
Adhesive brand badges
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details



Model Number:




Internal SKU:


Internal Product ID:


Product and How-to Videos

  • JBL GTO Series Car Speakers
  • Harman International: The Pursuit of Great Sound

Customer Ratings & Reviews

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Customer Reviews

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I'm picky about sound, and these sound great. Replaced some other aftermarket 6x9's with these. Great bass, would never know that they have a relatively shallow mounting depth. Fit in the doors of my Tacoma 2012. Ridiculous power handling. I'm no 6x9 aficionado, but they're the best I've heard.

By Wandulonian on January 13, 2013


found this helpful.

Good sounding speaker but...

I put these in a 92 Dodge Ram Pickup. Speaker location is not great in the first place seat partially blocks them. Overall sound quality is great having had JBL speakers in the past both Home and Auto. First problem I had is I did not have mirror imaged so one of the speakers fired the tweeter into the seat even more (no matter how I turned the speakers to make them work). One thing I did not like was the plastic housing for the speaker instead of metal. Also in the design of the mounting system for a flush mount is not the greatest, which is what I have in my doors. This truck is not a very smooth riding truck in the first place (rides like a lumber truck). I fear the housing is going to crack and break over time, only time will tell on that. To get a better sound image in this truck i put JL Audio tweeters on the pillars for the window to pull the high up to where you can hear the highs better. Advise from a Audio Shop it worked. Part of the problem is the design of the truck not the speaker. They are still a real good sounding speaker overall. They were put in as an upgrade from some cheap speakers I put in years ago. They made a Huge difference in the sound quality compared to the ones that I replaced for the better.

By Clueless on September 11, 2013


found this helpful.


Since my sub was over powering my highs and mids, I bought these to help level out the playing field and these 6x9's deliver! Worth every penny! I recommend you hook them up to an amp, they'll definitely help your highs and mids out!

By bgj361 on September 17, 2013


found this helpful.

Bigger than specifications

I bought these speakers for my 2015 RAM 1500, Speakers look nice but they would not fit in either front or back doors, even though it said it would fit. It is not an issue of the depth but the plastic speaker frame that comes down the back to the magnet, making them too wide for installation behind door panel. I ended up going with the JBL GX962, they fit perfect and sound great, night and day better over stock speakers, even with the stock head unit.

By John on September 26, 2017 Checkmark Icon Verified purchase


found this helpful.

By José Luis on December 4, 2022 Checkmark Icon Verified purchase


found this helpful.

Great Speakers.

Love how these speakers sound. Bought these to replace my kickers cs on my impala. Truly impressed with how loud they are and the bass on them is great. Feels like i have a mini subwoofer in my car. Hooked this up to amp for better sound. Definetly the best speakers i have heard so far. Love how clear and loud the highs are. Would definetly recommend these speakers.

By Juan on November 11, 2023 Checkmark Icon Verified purchase


found this helpful.


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