User manual AMERICAN AUDIO GX-300

[. . . ] American Audio® User Instructions GX-300 Professional Power Amplifier Power ON American AudioTM GX-300 Professional Stereo Amplifier Ch A Power Bridge Stereo Clip Signal Ch B Clip Signal Min Max Min Max American Audio® 4295 Charter Street Los Angeles Ca. 90058 Revised 5/01 CONTENTS QUICK START. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SAFETY PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 FRONT PANEL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 REAR PANEL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 INPUTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 OUTPUTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 LOW-CUT FILTER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 RESET BREAKER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 STEREO/BRIDGED MONO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 PROTECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Quick Start: The following instructions are provide as a guide for those user already familiar with the basic operation of amplifiers. 1. Be sure you amplifier and all other audio equipment is power down before attempting any type of connection. The amplifier power button is located on the lower left-hand side of the front of amplifier. [. . . ] After unpacking, inspect the amplifier for any type of damage that may have occurred during shipping or transit. If you notice any type of damage notify your dealer immediately for instructions. Installation: This amplifier is designed to mount in a standard 19" rack. The front panel provides four holes used to screw the unit into a rack. Cart Installation: Use only with a stable cart or stand. When a cart is used, use caution when moving the cart/unit combination to avoid injury from tip-overs. Customer Support: For assistance beyond that which is cover in this manual, American Audio® provides a toll free customer support line, to provide additional set up help and to answer any question should you encounter problems during your set up or initial operation. For service related issue please contact American Audio® Technical Support Team. Service Hours are Monday through Friday 9:00 a. m. Voice: (800) 322-6337 Fax: (323) 582-2610 E-mail: support@americandj. com You may also visit us on the web at www. americandj. com for any comments or suggestions. GX-300TM Power Amplifier Instructions page 4 FRONT PANEL Diagram 1 Power ON American AudioTM GX-300 Professional Stereo Amplifier Power Ch A Bridge Stereo Clip Signal Ch B Clip Signal Min Max Min Max 1 2 3 4 56 7 8 9 10 1. POWER BUTTON This is used to activate the amplifier's main power. When main power is activated it will indicated the Power LED (2). POWER LED This green LED will glow when the amplifier is turned on, indicating main power is traveling through the unit. BRIDGE LED This green LED will glow when the amplifier is in Mono-Bridge mode. For more information on operating in Mono-Bridge mode see page . STEREO LED This green LED will glow when the amplifier is in Stereo mode. For more information on operating in Stereo mode see page . CHANNEL A CLIP INDICATOR This red LED will glow begin to flash at the amplifiers clipping point, the point when the output signal begins to distort. Under heavy clipping lower the input gains (Diagram 8) to reduce the risk of damage to your speakers and amplifier. This LED will also glow constantly when channel A goes in to protect mode. In protect mode the output signal to the speakers will terminated. 6. CHANNEL A SIGNAL INDICATOR This Green LED will glow when there is an input signal present. 7. CHANNEL A GAIN CONTROL This knob adjust the channel one volume output to the speakers connect to channel one. 8. CHANNEL B CLIP INDICATOR This LED comes on at the amplifiers clipping point, the point when the output signal begins to distort. Under heavy clipping lower the input gains (Diagram 10) to reduce the risk of damage to your speakers and amplifier. [. . . ] Be sure not to raise the volume to the clip level however, an intermittent clip signal is acceptable. MONO BRIDGE OPERATION: Page 9/Diagram 8 give you a description of mono bridge set-up. Be sure you amplifier and all other equipment is shut off. Press the Stereo/Mono switch to the in position (Page 6/Diagram 2). Connect your speaker across the red output binding post on the rear of your amplifier (See Page 8 Mono Bridge Set-Up). [. . . ]