This JBL series incorporates many patents that are also found in JBL's pro speakers
Plus One® Technology
Harman's patented cones provide higher sensitivity, low-frequency output for greater musical character.
Allows the tweeter to be aimed at the listening location for better stereo imaging and high-frequency response at the listener's ear.
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.
What's in the box?
- 2 GTO 939 loudspeakers
- 2 protective grilles
- Owner’s/installation manual
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.
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.
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.
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.
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.
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 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.
Easily adjust the tweeter output from 0 to +3 decibels to compensate for low and off-axis mounting positions or road noise.
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.
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.
- 6" x 9"
- Power Handling (RMS)
- (2.83V/1m) 94dB
- Frequency Response
- Power Handling (Peak)
- Nominal Impedance
- 3 ohms
- Mounting Cutout Diameter (in)
- Mounting Depth (in)
- Mounting Cutout Diameter (mm)
- External Diameter (in)
- External Diameter (mm)
- Mounting Depth (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.
I'm thinking about buying these for a new sound system I'm building. What amp(s) do you suggest for these and also some GT7-6s? ps. If you have any better suggests speaker-wise, I'd love to hear it, so I can find the absolute best. THANKS!
I am looking to pair a RF 400-2 to the perfect set of 6x9s for the front doors of a 2014 Grand Caravan. A 400-4 will power the dash speakers and the rear. I am trying to get the fullest sound without a sub. What is the best mix of JBL speakers for this?
I just purchased these and the JBL GTO638s for my 2013 Altima to replace my stock speakers. What amp would I need to install for these speakers?
I'm finding conflicting info regarding GTO939's RMS Power Range. Crutchfield (JBL authorized retailer) lists the RMS 5-100w. The GTO939 box shows 100w. But your website lists 5-200w. Has the speaker changed? Or just advertisement material?
i have a 2104 camry do I need a speaker harness to connect this speaker. And if I need could you help me out which one I need. Thanks for the help.
The GTO939 I bought came with a removable plastic oval ring that sits on top and around the edge of the cone. The speaker grill doesn't seem to sit properly with this ring seating between the cone and the grill. Is this oval ring an installation option?
What is the depth of the GTO939?
Is amplifier required for this?
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.