Instruction/ maintenance manual of the product GFA-7605 Adcom
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OW NE R’ S MA NU AL G F A - 7 6 0 5 & G F A - 7 6 0 7 Mu lt ic ha nn el H ig h- Cu rr en t P ow er A mp li e rs.
W E L C O M E 2 Dear fe llow ADCOM produc t owner , W elcome to the ADCOM fami ly! For more than twenty years, A DCOM products hav e delive red excelle nt perform ance and value for custom ers around the wor ld.
T A B L E O F C O N T E N T S WELCOME ........................................ 2 SAFETY INFORMA TION ........................... 4 DESCRIPTION OF UNIT GF A-7605 FEA TURES .............................. 5 GF A-7607 FEA TURES ...........................
THE FOLLOWING PRECAUTIONS AND SAFETY INSTRUCTIONS ARE REQUIREMENTS OF UL AND CSA SAFETY REGULATIONS Warning: To reduce the risk of re or electric shock, do not expose this unit to rain or moisture.
GF A-7605 FEA TURES • P recision-matched devices used throughout the signal path. • 100,000 µF of power supply-lter capacitance to optimize transient response. • Independent power supplies for each channel. • Fewer gain stages improve signal reproduction accuracy .
INTROD UCTION Congratul ations on your decision to purc hase the GF A-7605 or GF A-76 07 multichannel power ampl ier . The GF A-7605 and GF A-7607 have been desig ned to be high performance and musically accur ate in a congur ation specicall y designed to integrate with any home theater processor .
7 CONNEC TING T HE GF A-7605 /7607 When connecting the amplier to the loudspea ker , it is vital to maintain proper polarity (positive to positive, negative to negative). On the GF A-7605/76 07, the posit ive term inal is color coded RED and labeled “+,” and the negative is color coded BLACK and labeled “-.
G F A 7607 distortion alert > LF C RF RS R B thermal protection > LB L S GF A-76 07 FRO NT P AN EL ( 6 ) ( 8 ) ( 9 ) ( 7 ) GF A-76 07 REA R P ANEL ( 2 ) ( 1 ) ( 5 ) ( 4 ) ( 3 ) (1) Input Jacks (.
9 DESC RIPTIO N OF U NIT : REA R P ANEL (1) Inputs The audio inpu ts fo r the GF A-7 605 a nd GF A-760 7 are thr ough h igh-q ualit y , g old-p lated RCA jac ks to minim ize hig h-freq uency loss es, no ise, etc. They will acce pt sta ndard RCA-t ype p lugs, one f or ea ch of the c hanne ls.
10 Since the fuse has a cera mic body and you ca nnot visu ally examin e the fus e element it is the refore sug gested th at you r eplace it with an id entical s ubstitute or bring t he fuse to yo ur ADCOM dealer so they may check its integrity . T o replac e the fus e, insert it in the back of t he fuse-ho lder cap.
Left Front Right Surround Right Back Left Back Left Surround Center Right Front curren t phase a ngle or th e reactan ce of the loudspeake rs which the ampli er is dri ving. Som etimes, wh en the ampli er is in use, the L EDs may o ccasionall y icker during high vol ume listen ing, part icularly i f you are driving low im pedances.
RESO L VING P ROBLEMS Use th e chart b elow to so lve commo n situatio ns that do n’t requi re profess ional att ention. If the step s stated i n POSSIBLE SOLUT ION do not resolve your probl em, then p lease con tact your ADCOM Deal er or cal l the ADCOM Cu stomer Ser vice Depart ment.
For Fax inquires, please include a return Fax number for the reply. When calling or writing about your GF A-7605/7607, 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 any communications to us, please include a daytime phone number where we may reach you.
GF A-7605 SPECIFICA TIONS 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.
GF A-7607 SPECIFICA TIONS 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.
ADCOM A division of Klein T echnology Group, LLC 8551 East Anderson Drive, Suite 105 Scottsdale, Arizona 85255 V oice: (480) 607-2277 Fax: (480) 348-9876 http://www .
An important point after buying a device Adcom GFA-7605 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Adcom GFA-7605 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Adcom GFA-7605 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Adcom GFA-7605 you will learn all the available features of the product, as well as information on its operation. The information that you get Adcom GFA-7605 will certainly help you make a decision on the purchase.
If you already are a holder of Adcom GFA-7605, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Adcom GFA-7605.
However, one of the most important roles played by the user manual is to help in solving problems with Adcom GFA-7605. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Adcom GFA-7605 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
