GTO-1001EZ/ GTO-751EZ/GTO-501EZ subwoofer amplifier Owner’s Manual
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.
English Mounting the Amplifier NOTE: You may find it more convenient to make all of the connections to the amplifier before you permanently mount it to the vehicle. Before mounting the amplifier you must remove the two end caps to expose the mounting holes and the connections. Using a Phillips screwdriver, remove the attachment screws and then the end caps, as shown in the illustration.
Connecting the Power and Ground The GTO subwoofer amplifiers are capable of delivering extremely high power levels, and require a heavy-duty and reliable connection to the vehicle’s electrical system to achieve optimal performance. Please adhere to the following instructions carefully. Using the Connectors GTO subwoofer amplifiers use the same type of screw terminals for power and speaker connections.
English Power Connection 1. C onnect a wire (minimum 6AWG – 13.2mm2 – for the GTO-1001EZ; minimum 8AWG – 8.4mm2 –for the GTO-751EZ and GTO-501EZ) directly to the battery’s positive (+) terminal. 2. I nstall a fuse holder for a 120A fuse (GTO-1001EZ), 80A fuse (GTO-751EZ) or 50A Fuse (GTO-501EZ) on this wire within 18" (46cm) of the battery’s (+) terminal. Do not install the fuse in the holder at this time. 3. R oute this wire to the amplifier’s location and connect it to the amplifier’s +12V terminal.
Input Connections Input Connectors Use RCA audio cables to connect source units with preamp-level outputs to the amplifier; use the supplied bare wireto-RCA adapters to connect to source units that don’t have RCA output connectors. Use a small Phillips screwdriver to loosen the adapter’s set screws and insert the speaker wires into the holes on the back of the adapter. Tighten the set screws to secure the wires.
English The low-pass Crossover control setting you use for your subwoofer will depend partly on the system’s high-pass channel settings, and partly on the type and location of your system’s subwoofer. Start by setting the Crossover control to a frequency somewhat lower than the lowest setting you used on any of the high-pass channels.
Bass Boost The Bass Boost control provides up to 12dB of bass boost at 45Hz. Set this control according to your personal taste, but be careful not to set the control at a high enough level to cause audible distortion or bottoming of your subwoofer.
English Troubleshooting If your amplifier isn’t performing the way you think it should, check to see if the problem is covered in this section before calling your dealer or contacting JBL customer service. Problem Causes and solutions No sound (the amplifier’s Power/ Protection LED is off): •C heck that the amplifier’s +12V and GND connections have been properly made. •C heck if the fuse on the +12V wire located near the battery is blown; if so, replace it with an identical fuse.
Specifications GTO-1001EZ Number of Channels: 1 Power Output (CEA 2006A): 650W RMS x 1 channel at 4 ohms, 14.4V DC, <1.0% THD 1000W RMS x 1 channel at 2 ohms, 14.4V DC, <1.0% THD Max Power: 1450W x 1 channel at 2 ohms (50Hz), 15.5V DC, 10% THD Frequency Response: 10Hz – 280Hz (±3dB) Signal-to-Noise (@ 1W): > 80dB Maximum Current Draw: 95A Fuse Replacement: 40A x 3 Dimensions (D x H x W): 14-11/16" x 2-9/16" x 9-11/16" (373mm x 66mm x 246mm) Weight: 10.8 lb (4.
English HARMAN Consumer, Inc. 8500 Balboa Boulevard, Northridge, CA 91329 USA © 2011 HARMAN International Industries, Incorporated. All rights reserved. JBL is a trademark of HARMAN International Industries, Incorporated, registered in the United States and/or other countries. Features, specifications and appearance are subject to change without notice. www.jbl.
