JBL

GTO939

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JBL® GTO Series of high-fidelity automotive speakers feature innovative technologies that we’ve engineered for the environment and conditions in today’s cars to help them deliver exceptional sound. Using the patented Plus One® woofer-cone technology and rugged construction materials such as carbon composite frames, butyl rubber surrounds and fabric tweeter diaphragms, plus UniPivot™ (U.S. patent no. 6,002,780) tweeter positioning on select coaxial models and the I-Mount™ (U.S. patent no. 5,859,917) system for the tweeters in the component separates, GTO Series automotive speakers are the ideal upgrade for any car’s audio system.
At a Glance:
  • 25 – 300 watts suggested amplifier power range
  • Patented Plus One woofer cone technology
  • Fiberglass-reinforced plastic (FRP) frames
  • Three-ohm voice coils
  • Vented magnet assemblies
  • Frequency response to 21kHz
  • High sensitivity (94dB@2.83V/1m)
  • UniPivot and adjustable tweeter level
  • Edge-driven, soft-dome tweeter diaphragms
  • Industry leading product development and evaluation standards
What's in the Box:
  • 2 GTO 939 loudspeakers
  • 2 protective grilles
  • Owner’s/installation manual
JBL® GTO Series high-fidelity automotive speakers feature innovative technologies that we’ve engineered for the environment and conditions in today’s cars to help them deliver exceptional sound. Using patented, carbon-injected Plus One® (U.S patent no. 7,548,631) woofer cones, fiberglass-reinforced plastic (FRP) frames, butyl rubber surrounds and fabric tweeter diaphragms, GTO Series automotive speakers are the ideal upgrade to any car’s audio system. GTO Series speakers, including component separates with woofer, tweeter and passive crossover, cover the most popular factory-replacement and aftermarket sizes. Other unique features such as UniPivot™ (U.S. patent no. 6,002,780) tweeter positioning and tweeter level controls on select coaxial models or the I-Mount™ (U.S. patent no. 5,859,917) system for the tweeters in the component separates provide even greater installation flexibility to achieve the ultimate in-vehicle sound experience. Easily installed and built to last, JBL GTO Series speakers bring music to life in the car.
Product Features:
  • 25 – 300 watts suggested amplifier power range
    JBL engineers designed the GTO 939 speaker to produce strong, clear sound from a head-unit or amplifier capable of delivering up to 300 watts of power. This makes the GTO 939 an ideal match to systems powered with head-unit or factory-amplifier power levels, or even with many of the GTO Series amplifier combinations to help keep up with systems that feature one or more subwoofers. And its great power-handling specifications also increase reliability over the lifetime of the speaker.
  • Patented Plus One woofer-cone technology
    The GTO 939’s Plus One carbon-injected cones provide more overall speaker cone area than others in the class. With an effective increase in cone area, the speaker radiates more air. Also, the carbon-injected cone material produces a lighter and stiffer cone. The result is a better low-frequency response and a greater ability to make those important musical notes that people often associate with larger speaker sizes.
  • Carbon-Composite Non Magnetic Frame
    The Carbon-Composite non magnetic frame used in the GTO 939’s speakers resist warping even when you mount them on uneven surfaces. Their nonmagnetic carbon composite helps to control the magnet’s energy and deliver it to the voice instead of wasting it as heat. What’s more, the plastic doesn’t resonate. The result of this control is accurate sound in your car.
  • True 4 Ohm Technology
    Low-Impedance, three ohm voice coils compensate for the undergauged speaker wiring found in many of today's cars, and make the most of every watt your amplifier or head unit can deliver.
  • Vented magnet assemblies
    GTO 939 speakers feature vented magnet assemblies to help cool the voice coil. Keeping the voice coil cool adds to increased reliability from greater power handling and helps eliminate power compression that can distort the speakers’ sound.
  • Frequency response to 21kHz
    A wide frequency response that extends beyond 20kHz helps to compensate for speaker-placement variations in your car and for human hearing deficiencies in the high-frequency spectrum above 15kHz. The result is that GTO 939 speakers deliver more of the full-range frequency response that you associate with great sound.
  • High sensitivity (94dB@2.83V/1m)
    High sensitivity allows a wider range of power to provide great sound without overdriving the audio system. With a sensitivity of 94 decibels at 2.83 volts/1 meter, the GTO 939 speakers achieve excellent volume and musicality with as little as 5 watts RMS. That means better performance overall, even with very moderate power driving them. And better performance makes the GTO 939 speakers an ideal replacement for factory speakers as well as for any aftermarket speaker installation.
  • Adjustable tweeter level
    Easily adjust the tweeter output from 0 to +3 decibels to compensate for low and off-axis mounting positions or road noise.
  • Edge-driven, soft-dome tweeter diaphragms
    The edge-driven, soft-dome tweeter design in the GTO 939 increases power handling while reducing high-frequency distortion. Edge-driven tweeters also have better dispersion characteristics and allow a lower crossover frequency, which improves imaging. The result is better vocals and clarity in your music. There’s no sense having it loud if it doesn’t sound clean, too.
  • Industry-leading product development and evaluation standards
    JBL technicians specifically evaluate each GTO Series speaker model in the development stages for overall and vocal-range voicing, intermodulation distortion (IMD) and performance at the limits of electrical and mechanical design. We also test according to strict carmaker reliability standards, both in development and in final production. All of these details are virtually unique to JBL car speakers, as most competitors do not even come close to this level of detail and oversight.
Plus One-teknologi

Plus One-membraner med injiceret kulstof giver et større samlet højttalermembranområde end andre membraner i klassen.

Highlights:
Manuals & Downloads:
Specifikationer:
Size
6" x 9"
Type
Three-Way
Audio Specifications:
Power Handling (RMS)
5W-200W
Sensitivity
(2.83V/1m) 94dB
Frequency Response
46Hz-21kHz
Power Handling (Peak)
300W
Nominal Impedance
3 ohms
Dimensions:
Mounting Cutout Diameter (in)
8-5/8
Mounting Depth (in)
2-13/16
Mounting Cutout Diameter (mm)
219
External Diameter (in)
9-9/16
External Diameter (mm)
243
Mounting Depth (mm)
71
GTO939 is rated 5.0 out of 5 by 5.
Rated 5 out of 5 by from Great 6x9 crispy sound I buy these edition to my 4 jbl gto 609c I didn't install them in the car yet but I hook it up to my receiver. Which is Harman kardon avr 1710s used it on stereo mode. After breaking it in after 4 hours of playing I start pushing power on the speakers. Very nice bass. I play with the bass control to see what is the respond on the speakers. They hit nice bass. Very nice vocals also When you push the -db button by the tweeters makes a huge difference on the tweeter. You get very ear iching tremble which i like. Nice quality all around. I am gonna push mostly mid bass on these I have the s3 1224 for the deep bass. You can never have to much speaker
Date published: 2017-12-30
Rated 5 out of 5 by from Great Speakers for the price. I installed these speakers into my 2009 Sierra in boxes under the rear seats with the tweeters facing up. I purchased the basic 6 x 9 boxes and they fit near perfect under the seat securely. I have a 40 watt 10 year old Sony amplifier turned all the way up and these speakers scream. Due to the size of the little 12 x 12 boxes, the bass is nothing to really brag about but the mids and highs are as good as it gets. I plan on following up the 6 x 9's with a pair of JBL 12's to get the bass I need to compensate for them. I can tell you that the sound is amazing, No popping or tweeter squeeling. These speakers will not disappoint. I could easily add my kicker 300 amp to them but they are plenty loud enough with the 40 watts behind them. I must also mention that I am still using my stock stereo. With an aftermarket unit and added EQ, these speakers could be fined tuned to perfection. Spend the extra money and get them. ROCK ON JBL. ROCK ON.
Date published: 2016-07-26
Rated 5 out of 5 by from Worth every penny!!! Great sound for a 6X9 3way I bought them to replace stock 6X9 rear speakers in a 2011 Nissan Altima. They sound great and rattle the license plate frame!!! Now I don't have to turn the volume up all the way to enjoy my music. I listen to dance,rap,r&b, and latin music. All sounds good wit these speakers!!!!
Date published: 2015-01-18
Rated 5 out of 5 by from Great speakers GTO 939 I got the speakers by Jan. I have a 2000 mazda protege that had good speakers but I didnt got the sound that I wanted, so i decided to try with JBL and the sound it was amaizing. The bass is incredible and the sound its so clear!
Date published: 2014-05-24
Rated 5 out of 5 by from 3 ans et c'est nickel Ça fait 3 ans que je les ai ! Pas bouger, bonne basses, c'est largement suffisant pour avoir mal aux oreilles ;) Elles ont un super rendu qualité son, elles valent le coup pour le prix et tout ça sans ampli
Date published: 2016-07-05
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Have Kenwood ddx9904 deck and 75w 4 channel amp. Would these be a better match in my front doors of my sienna or the newer 930s? I have 2 gto329 in my dash and a sub in the rear. Trying to find best match with 329s. I'm giving 75rms to each speaker.

Asked by: Wesdog357
These should be good as well since these speakers can handle 75W just fine and would a good match with your GTO 329.
Answered by: Mario at Customer service
Date published: 2018-10-16

Will the GTO939 mounting holes fit a 2017 Dodge Charger? I purchased another speaker brand to replace the existing factory speakers but the mounting holes themselves did not line up properly. If not, are there any recommendations?

Asked by: antman
We would like to work with you directly to help you with your issue. Please submit a case request at https://www.jbl.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Mario at Customer service
Date published: 2018-07-04

I have a king cab truck what kind of box do I put them in or do I just put them on board with open on back

Asked by: Ed53050
We would like to work with you directly. Please submit a case request at https://www.jbl.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: JoshD
Date published: 2018-04-29

Bought a complete set 6x9 GTO 939 (6x9), GTO 629 (6.5) and GTO 19T (Twiters) Wich car amp can do better for a nice sound?

Asked by: lsantos81
We would like to work with you directly to help you with your issue. Please submit a case request at https://www.jbl.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Mario at Customer service
Date published: 2018-03-04

I recently purchased the GTO939's and the GTO609C's for a total of 4 speakers. My current radio has a 200 watt peak or 50 watts*4. I need to purchase an amplifier and I need a recommendation for which JBL amp is best for my situation. Thanks.

Asked by: Cole H
The best that we can recommend would be our JBL GTR-104 and JBL GTR-7535, where the latter would be best if you plan to add a subwoofer to your system at a later date.
Answered by: Steven M
Date published: 2018-01-03

This is for clarification.. can i use the gto 939 speakers with a 2-4 ohm stable amp? Would there modifications as regards wiring the speakers to the amp?

Asked by: Myie111
Hi! Yes, you can use an amplifier that is rated 2 or 4 ohms with the GTO 939. You do not need to do any modifications with the wiring and the setup. You just need to wire them the same way on how you usually wire car speakers to their amplifier.
Answered by: Gian at Customer Service
Date published: 2017-12-20

Is there a trick to putting the guards (covers) on the gto939's. Mine don't seem to want to sink into the speaker. The opening for the center speaker won't even sit flush with the speaker. It's as If the guard is to small. Any hints or ideas. Thanks

Asked by: Drunkenweasel
We would like to work with you directly to help you with your issue. Please submit a case request at https://www.jbl.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Mario at Customer service
Date published: 2017-12-02

I recently installed pioneer 4200NEX in a 2000 Toyota Camry XLE which has JBL premium sound installed in it. The guy mentioned that both my rear speakers are blown and need to be replaced. Can I use these speakers to replace the stock JBL speakers?

Asked by: RajaTH
Being that the GTO939 speakers can handle up to 300 watts, they can certainly handle the 20 or so watts of power that your stock system currently puts out. So, if you are simply looking to improve the sonic quality of your existing system, putting these speakers in should do the trick. On the other hand, if you are trying to get more volume out of your system, you will definitely need these speakers and an amplifier, in order to increase your volume. OR, if you are putting these speakers in because you have blown your stock speakers, this is likely because your stock amp is not powerful enough for your listening taste. In this case you would have likely turned your stock system up too loud, causing distortion, and as a result, blew the speakers due to distortion. So in this case we would also recommend an amplifier as well.
Answered by: Ren at Customer Service
Date published: 2017-12-02
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