Adcom GFA-7700 Owner'S Manual Download Page 14

Servicing

ADCOM has a Technical Service Department to answer questions pertinent to the installation 

and operation of your unit. In the event of difficulty, please contact us for prompt advice. 

Please have the following information readily at hand: the unit’s model and serial numbers, 

and dealer from whom it was purchased. If your problem cannot be resolved through our 

combined efforts, we may refer you to an authorized repair agency, or authorize return of 

the unit to our factory. To aid us in directing you to a convenient service center, it would be 

helpful if you indicate which major city is accessible to your home.

 

Please address mail inquires to: 

Phone, Fax or Email inquiries to :

 

ADCOM Service 

Voice: (480) 607-2277 

 

 

8551 East Anderson Drive, Suite 105 

Fax: (480) 348-9876

 

Scottsdale, Arizona 85255  

Monday-Friday 

 

United States of America 

9:00 AM to 5:00 PM MST

 

www.adcom.com 

[email protected]

UNDER NO CIRCUMSTANCES SHOULD YOUR UNIT BE SHIPPED TO OUR FACTORY WITHOUT 

PRIOR AUTHORIZATION, OR PACKED IN OTHER THAN ITS ORIGINAL CARTON AND FILLERS.

For fax inquires, please include a return fax or voice number for the reply. When calling or 

writing about your GFA-7700, be sure to note and refer to its serial number as well as the 

date of purchase and the dealer from whom it was purchased. In the event the unit must be 

returned to our factory for service, you will be instructed on the proper procedure when you 

call or write for a Return Authorization. For warranty coverage, a copy of the original proof 

of purchase is required. If you have no original copy, please contact your dealer to obtain a 

duplicate copy.

If the original shipping carton and its fillers have been lost, discarded, or damaged, a 

duplicate carton may be obtained from our Service Department for a nominal charge.

Always ship PREPAID VIA UNITED PARCEL SERVICE (UPS) OR OTHER APPROVED CARRIER. DO NOT 

SHIP VIA PARCEL POST, since the packaging was not designed to withstand rough Parcel Post 

handling. FREIGHT COLLECT SHIPMENTS CAN NOT BE ACCEPTED UNDER ANY CIRCUMSTANCES.

14

Summary of Contents for GFA-7700

Page 1: ...GFA 7700 High Current 5 Channel Power Amplifier Owner s Manual...

Page 2: ......

Page 3: ...ut devices Convenient 12 VDC power ON OFF triggering Heavy gauge anodized aluminum front panel Powder coated baked chassis and top cover for greater durability Cooling vents for greater efficiency and...

Page 4: ...onnections to it ADCOM Protection Plan USA ONLY ADCOM offers the enclosed valuable Limited Warranty Please read the details on the Warranty Card carefully to understand the extent of the protection of...

Page 5: ...kers are made through high grade 5 way gold plated binding post terminals There are two terminals for each speaker which are colored RED for the positive output and BLACK for the negative output The b...

Page 6: ...Fuse only with one identical in type and rating as printed on the rear panel DO NOT USE ANY SUBSTITUTE FUSES WITH DIFFERENT RATINGS OR VALUES Failure to observe this precaution may cause serious dama...

Page 7: ...hen the GFA 7700 is turned off the Power LED will take some time to fade out completely It may take up to 30 seconds to fully extinguish Additionally the internal power transformer is provided with a...

Page 8: ...has been triggered and the amplifier is inoperative The thermal protection circuitry will typically be triggered by very high power demands into impedances much lower than the amplifier is capable of...

Page 9: ...nal components It is imperative that these vents are not obstructed in any way We recommend that you do not stack other components on top of the GFA 7700 Not only will heat generated by the amplifier...

Page 10: ...designations are as you are sitting down in your listening viewing area On the rear panel the inputs and outputs are grouped in 5 bracketed sets one for each channel They are as follows RS Right Surr...

Page 11: ...rity positive to positive negative to negative On the GFA 7700 the positive terminal is color coded RED and labeled and the negative is color coded BLACK and labeled The positive terminal on the speak...

Page 12: ...y high volumes levels from your system It is not recommended that you run additional sets of speakers on any or all of the amplifiers in the GFA 7700 in order to insure the integrity of the system If...

Page 13: ...solator works only partially or not at all then please read Note 2 to complete the troubleshooting procedure Note 2 Make sure that the power amplifier is at least six inches from the Preamp and or Pro...

Page 14: ...HOULD YOUR UNIT BE SHIPPED TO OUR FACTORY WITHOUT PRIOR AUTHORIZATION OR PACKED IN OTHER THAN ITS ORIGINAL CARTON AND FILLERS For fax inquires please include a return fax or voice number for the reply...

Page 15: ...ohms 0 01 Dynamic Headroom 1 9 dB Signal to Noise Ratio A Weighted 115dB Gain 29dB Input Sensitivity for 1 Watt 0 1 volts for 150 Watts 1 14 volts Input Impedance 50k Damping Factor 20Hz to 20kHz 800...

Page 16: ...8551 East Anderson Drive Suite 105 Scottsdale Arizona 85255 Voice 480 607 2277 Fax 480 348 9876 www adcom com gfa7700_manual_v1...

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