SOUNDSTREAM 644s - Manuals

l l INSTALLATION STEP 2 BALANCED/UNBALANCED INPUT The REFERENCE6445 amplifier has the ability to accept either standard Unbalanced RCA signal inputs, or Balanced “Pro Audio” inputs with the use of the Soundstream or Balanced Line Transmitters or some other balanced line audio source. Before installi...

(Continued From page 13) I N T E R N A L The REFERENCE amplifiers are fused with automotive-type fuses. In the event of blown the on the top panel will light. The fuses are accessible via a plastic plug on the bottom of the amplifier. See thechart below to determine the fuse value. Never replace the...

INSTALLATION STEP 5 LEVEL SETTING The input levels are adjusted by means of the individual channel input levelcontrols located on the front of the amplifier. This is a unique dual-stage circuit that adjusts both level and gain. This topology maintains better Signal-to-Noise ratios even when using so...

l INSTALLATION STEP 6 CROSSOVER ADJUSTMENTS The and amplifiers incorporate an board staggered electronic They also have RCA outputs to drive an external amplifier. No external electronic crossover is necessary. The high and low pass portions of the crossover can be set independently of one another. ...

l TROUBLESHOOTING PROBLEM CAUSE No sound and power LED lit No power or ground at amp No remote turn-on signal Blown fuse near battery No sound, power LED lit, and the option has not been added. No signal input Fault LED is lit The switch is in the “IN” position, Move it to the “OUT” position Amp pow...