Adcom GFA-5500 - Manual (Page 5)

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GFA-5500 Rear Panel Diagram
WARNING
WHENEVER CONNECTIONS TO OR FROM THE GFA-5500 ARE BEING MADE, BE CERTAIN THAT THE
AC ON/OFF SWITCH OF THE AMPLIFIER IS IN THE OFF POSITION, THE AC CORD OF THE AMPLIFIER
IS DISCONNECTED FROM THE AC WALL OUTLET AND THAT ALL ASSOCIATED COMPONENTS ARE
OFF.
RIGHT/LEFT OUTPUT ©
The GFA-5500's connection to the loudspeakers are made through two high quality, five-way, gold plated binding posts
located on the rear panel. These terminals will accommodate either bare wire, tinned wire, terminal pins, spade lugs or
banana plugs, both single and dual. These output terminals are color coded RED and BLACK to indicate polarity. To
ensure correct stereo phasing, you must connect the RED output terminal (labeled “+") to the loudspeaker input terminal
color coded RED (or labeled POSITIVE, "+”, POS, 8 OHMS or 4 OHMS). The BLACK binding post terminal on the
amplifier (labeled "-”) should be connected to the loudspeaker input terminal color coded BLACK (or labeled NEGATIVE,
NEG, C, COMMON, G, or GROUND).
The RIGHT OUTPUT should be connected to the right channel loudspeaker, as you face the pair of loudspeakers, and
the LEFT OUTPUT to the left channel loudspeaker.
In order to ensure that connections to the loudspeakers are correct, you must be able to identify each wire conductor of
the loudspeaker cables at both ends of the cables. This is relatively easy to do since most loudspeaker cables'consist of
two parallel, stranded conductors in a flexible insulation, with a coding system for wire identification. Sometimes there is
a colored “tracer" wrapped around one of the conductors; some cables have one of the conductors colored silver and the
other copper; some have a “ridge" molded on the insulation of one of the conductors, while others are imprinted with
a n d / o r m a r k i n g s . Your ADCOM dealer also sells special loudspeaker cables and these are most often labeled with
respect to polarity.