Adcom GFA-555MS Bedienungsanleitung Seite 1

HIGH CURRENT POWER AMPLIFIER GFA-555ms The contents of this manual are subject to change. Please check our website www

originate from a point directly in front of you and exact localization will be fairly easy. If you now move a foot or two to the left and the ri

correct stereo phasing with optimal bass response, you must observe these connections precisely. Although the GFA-555ms can generate

operate reliably and if triggering of protective devices is to be avoided. The preceding is particularly true of amplifiers which have ex

To remove a blown or suspect fuse from its fuse holder, use only a number 2 Phillips screwdriver to prevent damage to the fuse holder

Whenever the POWER switch on the front panel is turned on and the amplifier is energized, the POWER LED will glow. If turning on the amplifier does n

damaging the fuse holder. DO NOT FORCE THE FUSE-HOLDER CAP INTO THE THREADS. Seating of the cap in the fuse-holder body should be

INSTANTANEOUS DISTORTION ALERT LEDs The INSTANTANEOUS DISTORTION ALERT circuit is a unique ADCOM distortion-detection system which reads all f

NOTE ACTIVATION OF THE THERMAL PROTECTION CIRCUITRY IN THE GFA-555ms IS AN INDICATION THAT THE AMPLIFIER HAS BEEN OVERDRIVEN OR THAT THE LOAD

When calling or writing about your GFA-555ms, be sure to note and refer to its model and serial numbers as well as the date of purchase and

GFA-555ms SPECIFICATIONS Power Rating (To FTC Requirements) 125 watts continuous average power into 8 ohms at any frequency between 20Hz

INTRODUCTION Please read thoroughly these operating instructions for the GFA-555ms before connecting or attempting to operate it. The installation and

IM Distortion, Bridged (CCIF, Any Combination from 4kHz to 20kHz) 400 watts into 8 ohms ≦0.005% THD + Noise at 400 Watts i

400 watts into 8 ohms, bridged 800VA GENERAL Power 120VAC/60Hz Chassis Dimensio

without repetitive destruction of the loudspeaker load. To achieve the above, eight sets of specially selected TO-3-type, metal-cased bipolar output

 Addition of a servo circuit minimizes DC-offset voltage at the loudspeaker outputs; this insures that there is no woofer "biasing" with a

INSTALLING THE GFA-555ms The GFA-555ms is equipped with large heatsinks to dissipate the heat generated by the output power transistors.

packed with the optional rack-mount adaptors for more information. CONNECTING THE GFA-555ms The optimal performance of the GFA-555ms will ultimatel

accommodate either bare wire, tinned wire, terminal pins, spade lugs, or "banana plugs", both single and dual. The output termin

and not exceeding 60 feet, useAWG14stranded wire only. Runs exceeding 60 feet require the use of heavier conductors such asAWG12stranded wire. If you

If you prefer to use other methods of connection, unscrew the insulated, hexagonal head of the binding post until the hole in the binding-post stud is