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Summary of Contents for Adcom GFA-7605
- Page 1 OWNER’S MANUAL GFA-7605 & GFA-7607 Multichannel High-Current Power Amplifiers...
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Page 2: Welcome
On behalf of all of us at ADCOM, I want to thank you for your selection of our product for your home or business entertainment system. -
Page 3: Table Of Contents
DESCRIPTION OF UNIT: REAR PANEL ... 9-10 DESCRIPTION OF UNIT: FRONT PANEL ... 10-11 CONNECTIONS DIAGRAM ... 11 TROUBLESHOOTING RESOLVING PROBLEMS ... 12 CARING FOR YOUR GFA-7605/7607 ... 13 SERVICE INFORMATION ... 13 GFA-7605 SPECIFICATIONS ... 14 GFA-7607 SPECIFICATIONS ... 15 ... 4... -
Page 4: Safety Information
THE FOLLOWING PRECAUTIONS AND SAFETY INSTRUCTIONS ARE REQUIREMENTS OF UL AND CSA SAFETY REGULATIONS Warning: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION The graphic symbol of a lightning flash with an arrow point within a triangle signifies that there... -
Page 5: Gfa-7605 Features
Be sure to verify that the serial number printed on the rear panel matches the serial number on the outer carton. If any number is altered or missing, or if the ADCOM Warranty Card is not included in the carton, you should notify us immediately in order to ensure that you have received a genuine ADCOM product which has not been opened, mishandled, or tampered with in any way. -
Page 6: Unpacking The Gfa-7605/7607
Not only will heat generated by the amplifier affect the performance of equipment stacked on top of the GFA-7605/7607, but the free flow of air through the ventilating slots in the amplifier may be partially obstructed. -
Page 7: Connecting The Gfa-7605/7607
When connecting the amplifier to the loudspeaker, it is vital to maintain proper polarity (positive to positive, negative to negative). On the GFA-7605/7607, the positive terminal is color coded RED and labeled “+,” and the negative is color coded BLACK and labeled “-.” The positive terminal on the speaker will be color coded RED, or will be labeled “+,” “pos,”... -
Page 8: Input Jacks
GFA-7607 REAR PANEL GFA-7607 FRONT PANEL distortion alert > thermal protection > ( 6 ) ( 7 ) (1) Input Jacks (2) Output Binding Posts (3) I2V DC Trigger (4) AC Fuse (5) AC Power Cord ( 2 ) (6) On/Off Switch (7) Power LED (8) Thermal Protection LEDs (9) Distortion Alert LEDs... -
Page 9: Description Of Unit: Rear Panel
We have however provided the ability to control the OFF/ON function of the GFA-7605/7607 by a l2V DC output jack on the rear of certain ADCOM pre-amplifiers and tuner preamplifiers. When using this feature the front panel Power Switch must be left in the in “on”... -
Page 10: Description Of Unit: Front Panel
ADCOM dealer so they may check its integrity. To replace the fuse, insert it in the back of the fuse-holder cap. -
Page 11: Connections Diagram
Protection to be activated or, in extreme cases, damage your loudspeakers. Right Surround WHENEVER CONNECTIONS TO OR FROM THE GFA-7605 & GFA-7607 ARE BEING MADE, BE CERTAIN THAT THE AC ON/OFF SWITCH OF THE AMPLIFIER IS IN THE OFF POSITION, THE AC CORD OF THE... -
Page 12: Resolving Problems
(i.e. the cable box, or VCR). If the hum is no longer present, you must insert a “75Ω Ground Loop Isolator” before reconnecting the line. You should check with your ADCOM Dealer to obtain one. If the “75Ω... -
Page 13: Caring For Your Gfa-7605/7607
CARING FOR YOUR GFA-7605/7607 Great care has been taken by ADCOM to ensure that your amplifier is as flawless in appearance as it is electronically. The front panel is a heavy-gauge, high-grade aluminum extrusion carefully finished and anodized for durability. The chassis, top cover and rear panel are heavy-gauge steel that has been powder coated and baked to ensure a lasting finish. -
Page 14: Gfa-7605 Specifications
GFA-7605 SPECIFICATIONS Power Rating (To EIA/CEA-490-A Requirements) 125 Watts continuous average power per channel into 8 ohms at any frequency between 20Hz and 20kHz with all channels driven at less than 1.00% THD. 175 Watts continuous average power per channel into 4 ohms at any frequency between 20Hz and 20khz with all channels driven at less than 1.00% THD. -
Page 15: Gfa-7607 Specifications
GFA-7607 SPECIFICATIONS Power Rating (To EIA/CEA-490-A Requirements) 125 Watts continuous average power per channel into 8 ohms at any frequency between 20Hz and 20kHz with all channels driven at less than 1.00% THD. 175 Watts continuous average power per channel into 4 ohms at any frequency between 20Hz and 20khz with all channels driven at less than 1.00% THD. - Page 16 ADCOM A division of Klein Technology Group, LLC 8551 East Anderson Drive, Suite 105 Scottsdale, Arizona 85255 Voice: (480) 607-2277 Fax: (480) 348-9876 http://www.adcom.com GFA7605_07_manual_v1...
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