Table of Contents
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Table of Contents
Related Manuals for Adcom GFA-7807
Summary of Contents for Adcom GFA-7807
- Page 1 OWNER’S MANUAL GFA-7805 & GFA-7807 Multi-channel 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 selecting our product for your home or business entertainment system. Sincerely,... -
Page 3: Table Of Contents
WELCOME ... 2 SAFETY INFORMATION DESCRIPTION OF UNIT GFA-7805 FEATURES ... 5 GFA-7807 FEATURES ... 5 WARRANTY INFORMATION ... 5 INSTALLATION & HOOKUP UNPACKING THE GFA-7805/7807 ... 6 INSTALLING THE GFA-7805/7807 ... 6 OPERATION FRONT AND REAR PANEL DIAGRAMS ... -
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-7805 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-7805/7807
UNPACKING THE GFA-7805/7807 Before your new ADCOM amplifier left our factory, it was carefully inspected for physical imperfections and tested for all electrical parameters as a routine part of ADCOM’s systematic quality control. This, along with full operational and mechanical testing, should ensure a product flawless in both appearance and performance. -
Page 7: Front And Rear Panel Diagrams
GFA-7807 REAR PANEL GFA-7807 FRONT PANEL distortion alert > thermal protection > ( 6 ) ( 7 ) (1) Input Jacks (2) Output Binding Posts (3) I2V DC Trigger ( 2 ) (4) AC Fuse (5) AC Power Cord (6) On/Off Switch 7807 ( 8 ) ( 9 ) -
Page 8: Description Of Unit: Rear Panel
Make sure the switch is in the appropriate posi- tion for the type of connection you have choosen. For best performance, always use high quality interconnects. Your ADCOM dealer can help select the best cable for your needs. (2) Outputs The GFA-7805’s and GFA-7807’s connections to the loudspeakers are made through high-grade, 5-way, gold-plated binding post terminals. - Page 9 (9) Distortion Alert LEDs The Distortion Alert circuit is a unique ADCOM distortion detection system which reads all forms of non-linear distortion such as THD, IM, slew-induced, “clipping,” etc. The Distortion Alert LEDs will light when distortion reaches...
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Page 10: Connections Diagram
CAUTION RISK OF ELECTRIC SHOCK please visit www.adcom.com Right Surround Left Surround unbalanced input unbalanced input input select input select balanced input balanced input balanced input output... -
Page 11: Connecting The Gfa-7805/7807
(home theater) mode is in operation. A device such as the ADCOM GFS-3 or GFS-6 speaker selector is recommended. A Speaker Selector enables you to maintain good sonic integrity while giving you the flexibility to add speakers throughout your house. -
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-7805/7807
CARING FOR YOUR GFA-7805/7807 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-7805 Specifications
GFA-7805 SPECIFICATIONS Power Rating (To EIA/CEA-490-A Requirements) 300 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. 450 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-7807 Specifications
GFA-7807 SPECIFICATIONS Power Rating (To EIA/CEA-490-A Requirements) 300 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. 450 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 GFA7805_07_manual_v1...
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