Why You Should Pay Attention to This Owner’s Manual

The performance of your vehicle’s audio system depends as much on quality installation and setup as it does on quality gear. Of course, these new JBL® GTO subwoofer amplifiers are bulletproof performers that are built using the highest quality components, and will outperform any competing product on the test bench. To make sure you extract all the performance possible from your new amp, whether you install it yourself or have a professional install it for you, we’ve incorporated some new features that make setup simple and precise and ensure you get all the power and performance you’ve paid for.

What makes these amplifiers different

All amplifiers include some signal processing functions, level setting controls and other switches and connectors that make it possible to hook the amp up to just about any existing system. However, with many amplifiers, considerable technical expertise is required to make the best use of those connectors, switches and controls to get powerful noise- free sound. JBL GTO subwoofer amplifiers include Simple Setup designed to make it easy for you to get all the noise- free power your amp is capable of delivering.

What makes input setup easy

GTO Amplifiers include adapters for connecting almost any analog signal and feature built-in Gain Indicator LEDs and a setup CD that makes precision adjustment simple, no matter your level of experience. The setup of GTO amplifiers is a little different than amplifiers you may have installed in the past, so please read this owner’s manual before you begin. If you’re an experienced installer, skipping ahead is OK, but please don’t skip Setup Procedure, on page 6.

So we can better serve you should you require warranty service, please retain your original sales receipt and register your GTO-1001EZ or GTO-751EZ or GTO-501EZ online at www.jbl.com.

Included Items

The following items are included in the packaging. If any of these items are missing, please contact your authorized

JBL dealer, or JBL customer service at www.jbl.com.

GTO Subwoofer

 

Amplifier

Setup CD

Bare Wire-to-RCA

Adapters (2)

Location and Mounting

Installation Warnings and Tips

IMPORTANT: Disconnect the vehicle’s negative (–) battery terminal before beginning the installation.

•Always wear protective eyewear when using tools.

•Check clearances on both sides of a planned mounting surface. Be sure that screws or wires will not puncture brake lines, fuel lines or wiring harnesses, and that wire routing will not interfere with the safe operation of the vehicle.

•When making electrical connections, make sure they are secure and properly insulated.

•If you must replace any of the amplifier’s fuses, be sure to use the same type of fuse and current rating as that of the original.

Installation Location

Amplifiers need air circulation to stay cool. Select a location that provides enough air for the amp to cool itself.

•Suitable locations are under a seat (provided the amplifier doesn’t interfere with the seat adjustment mechanism), in the trunk, or in any other location that provides enough cooling air.

•Do not mount the amplifier with the heatsink facing downward, as this interferes with the amplifier’s convection cooling.

•Mount the amplifier so that it will not be damaged by the feet of backseat passengers or shifting cargo in the trunk.

•Mount the amplifier so that it remains dry – never mount an amplifier outside the car or in the engine compartment.

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JBL GTO-751EZ, GTO-1001EZ, GTO-501EZ owner manual Included Items, Location and Mounting
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GTO-751EZ, GTO-501EZ, GTO-1001EZ specifications

The JBL GTO series of amplifiers, including the GTO-1001EZ, GTO-501EZ, and GTO-751EZ, represents a compelling choice for audiophiles who seek enhanced audio performance in their vehicles. These amplifiers are designed to deliver powerful and clear sound quality, making them essential components for any high-fidelity car audio system.

The GTO-1001EZ is a monoblock amplifier that boasts a robust output of 1000 watts RMS at 2 ohms. This model utilizes JBL's latest technology, including True Power technology, which ensures consistent power delivery without distortion. The amplifier features a variable low-pass filter that allows users to tailor their bass response according to the type of music they prefer. Additionally, the GTO-1001EZ includes a remote gain control for easy adjustments from the driver’s seat.

The GTO-501EZ is a versatile five-channel amplifier capable of powering both speakers and subwoofers, making it an excellent choice for building a complete audio system. Offering 75 watts RMS per channel at 4 ohms for the speakers and a dedicated subwoofer channel with a peak power of 500 watts, this amplifier provides dynamic sound across all frequencies. It also incorporates high-level inputs, which facilitate seamless integration with factory audio systems. The GTO-501EZ features an advanced thermal management system to prevent overheating during extended use.

For those seeking even more power, the GTO-751EZ is a robust seven-channel amplifier designed to drive speakers and a subwoofer efficiently. With a total output of 900 watts RMS, this amplifier is perfect for large setups and can accommodate high-performance audio systems. It also comes equipped with a built-in DSP processor, allowing users to customize the sound field and frequency response to suit their preferences.

All three models feature JBL's special class D amplifier technology that helps to minimize size while maximizing output efficiency. The compact design makes installation in tight spaces a breeze. Additionally, these amplifiers utilize gold-plated terminals for improved connectivity and performance.

In summary, the JBL GTO-1001EZ, GTO-501EZ, and GTO-751EZ amplifiers stand out in the automotive audio landscape. With their powerful output, customizable features, and state-of-the-art technologies, they provide an excellent foundation for a high-quality car audio system, enhancing the listening experience for anyone who values exceptional sound quality on the road.
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