JBL

GTO939

Details
Item# GTO939
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    • Black
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£119.99119.99 per pair

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Additional Information
A 6'' x 9'' (160mm x 230mm) three-way speaker with adjustable-level tweeter
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:
  • 1 pair of speakers
  • 1 pair of speaker grilles
  • User Manual
JBL GTO 939 speakers handle a robust 300 watts peak power (100 watts RMS). This much power makes for 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.
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® Technology

Plus One carbon-injected cones provide more overall speaker-cone area than other cones in its class.

Highlights:
Manuals & Downloads:
General Specifications:
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 4.
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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