Item# GTO-3EZ



1370-Watt, Three-Channel Amplifier
$299.95 each


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Finally, high-performance amplifiers that are easy to install and calibrate. The JBL® GTO-3EZ three-channel car audio amplifier provides unmatched ease of installation, configuration and calibration – processes that are necessary to produce clean, powerful sound. Whether you’re upgrading an OEM (original-equipment manufacturer) audio system or installing an aftermarket system, this amplifier offers virtually limitless applications with wired or auto-sensing turn-on – but without making you fuss with adding third-party adapters or converters. These amps drive up to 15 volts of audio signal right to the inputs with either line-level or speaker-level signals. And they come with RCA-to-bare-wire adapters and a setup CD. Experience the clean and powerful output of GTO Series amplifiers in a variety of channel configurations and power ratings, all of which are CEA®-2006A compliant and backed by the JBL reputation for top quality.

What's in the box?

  • (1) GTO Subwoofers Amplifier
  • (1) Setup CD
  • (3) Bare Wire-to-RCA adapters
  • (1) Owners Manual

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General Specifications

Grand Touring

Audio Specifications

Peak Power
Signal-to-Noise Ratio
Frequency Response
20Hz-23kHz front and rear channels; 10Hz-280Hz sub channel
Maximum Current Draw
Number of Channels/Type
1+2 Channels
2-Ohm Power Output
75W RMS x 2 channels at 2 ohms + 500W RMS x 1 channel at 2 ohms, 14.4V DC, less than 1.0% THD
4-Ohm Power Output
50W RMS x 2 channels at 4 ohms + 350W RMS x 1 channel at 4 ohms, 14.4V DC, less than 1.0% THD


A complete 1370-watt (max) system amplifier

A system amplifier features multiple channels configured into a single chassis that can power an entire system. The GTO-3EZ system amplifier is a three-channel, 2x50 watts + 1x500 watts RMS configuration (1370 watts max). High-efficiency Class D amplification in the subwoofer channels ensures maximum output for the low end, while variable active crossovers (40Hz – 280Hz low-pass and 40Hz – 220Hz high-pass) and variable bass boost ensure the right integration, no matter what speakers you connect.

Easy setup and adjustment of input gain

The GTO-3EZ system amplifier includes an input-level switch, a setup CD with test signals and LED indicators to tell you when the setting is correct. Simply set the switch, turn the input-level knob and watch for the green light that indicates that the setup is perfect. That’s all there is to it. There’s a reason why the amplifier’s model number contains EZ. This feature significantly reduces installation time and delivers excellent results.

Wired or auto-sensing remote turn-on

JBL engineers have configured the GTO-3EZ system amplifier to turn on with a wired input (as in aftermarket systems) or with an auto-sensing circuit that activates whenever the amp detects an audio signal. The auto-sensing feature is helpful when you’re upgrading OEM audio systems that don’t include a remote trigger wire. It’s easily defeated by a switch when you’re using a wired remote turn-on input.

Input signal up to 15V (line-level or speaker-level)

The GTO-3EZ system amplifier accepts a wide range of inputs up to 15 volts with line-level or speaker-level signals. Using RCA-to-bare-wire adapters included with the amplifier, you can connect to virtually any OEM or aftermarket audio system. The end result is an amplifier that works with the widest range of cars on the road.

Built-in, variable active crossovers

Active 12-decibel/octave crossovers offer variable high-pass filter points between 40Hz and 220Hz on the full-range channels and variable low-pass filter points between 40Hz and 280Hz on the subwoofer channel. Importantly, all filter points on the adjustment dial match the silkscreened frequency points on the amplifier chassis – a feature that not all amps provide.

Built-in, variable bass boost

The GTO-3EZ system amplifier provides a range of bass boost from 0 decibels to +12 decibels, centered at 45Hz. This is a useful feature for restoring some bass that may be limited by the low-frequency response of certain speakers in the system – or to enhance a particular range of bass that the speakers already produce well.

Bridgeable channel pairs (on full-range channels)

You can bridge pairs of the GTO-3EZ system amplifier’s main channels into a single, more powerful channel. This setup is useful for flexible audio system designs in a growing system or for full-range speakers in a system that needs more power.

High-efficiency Class D operation (on subwoofer channel)

The high-efficiency, low-current and low-heat performance of Class D amplification ensures high power output from the GTO-3EZ’s subwoofer channel. It also minimizes any need for upgrades to your vehicle’s electrical system.

Automatic thermal and low-impedance protection

Amplifier protection is just like insurance; you hope you’ll never need it, but it’s nice to have when you do. Thermal protection keeps the GTO-3EZ system amplifier from overworking itself to the point of premature failure. Low-impedance protection keeps the amplifier safe from any speaker or wiring failures that result in short circuits.

Compatible with wired remote bass control (sold separately)

The GTO-3EZ amplifier is compatible with the optional wired remote bass control, which provides easy adjustment of subwoofer-channel bass levels from the front seat. The wired remote is easy to connect with a telephone-style jack and can be mounted in a variety of positions to suit the vehicle and location preferences.

Warranty 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 elibible for exchange.

Request an Exchange

Product Support

Call us: 1.800.336.4525

  • Sales and pre-sale assistance
  • Technical help
  • Parts and accessories


GTO-3EZ is rated 5.0 out of 5 by 2.
Rated 5 out of 5 by from Very good sounding and powerful amp Very powerful amp for its size , it's incredible how much power this little thing can deliver its very small but when you tun it on the earthquake begins , the sound its superb the bass its felt very good and its tight and deep with no disturbing boom like others amps very good sounding , the high/mid amp its also good sounding and incredibly powerful , the gain setup led s are very helpful i think those make the difference and outrun other competing brands i m sure the other car amplifiers brands will copy this feature that JBL brought on market because its very good , hope the durability will be good it the only cons is that it heats a little to much hope this won't be a problem. Very happy with my chose to buy JBL against other brands if the durability will be as good as other aspects of this amp clearly this its best buy in his price range.
Date published: 2014-12-16
Rated 5 out of 5 by from I am really impressed! This amp is great. It is perfect for my truck. There are not a lot of 2 channel + sub amps out there but even if there was i would still pick JBL every time. The rated power output is probably underrated. This thing is a beast. It will dim my lights when other similarly rated competitors amps would not. I run some JBL Power 5 1/4" coaxials and two JBL GTO 8" subwoofers off this amp. A perfect one amp truck setup. In any vehicle where you just want a front sound stage and a sub, this is perfect. You could get two of these if you wanted a rear stage and needed two powerful subwoofer channels as well. I hardly even look at other brands anymore. JBL is so consistently good and well priced that i don't need to. In my house and in my cars, its all JBL. Thanks again, JBL!
Date published: 2013-08-31
  • 2015-09-02T07:32CST
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