Soundstream Technologies 644s manual

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Table of contents for the manual

  • Page 1

    REFERENCE 414s 644s 4/3/2 Channel Power Amplifiers OWNER’S MANUAL AND INSTALLATION GUIDE SOUNDSTREAM _ TECHNOLOGIES[...]

  • Page 2

    l om*o CONGRA TULA TIONS! TABLE OF CONTENTS YOU now own a REFERENCE Amplifier, the product of an uncompromising design and engineering philosophy. Your Soundstream REFERENCE amplifier will outperform any other amplifier in the world. Design Features .................................................... To maximize the performance of your system, we [...]

  • Page 3

    DESIGN FEATURES l Uncompromising Design and Construction including mil-spec glass epoxy circuit boards and high current custom gold-plated solid brass connections that will accept up to 4 gauge power/ground wire. l Auto High CurrentTM - Soundstream’s exclusive circuit which automatically customizes your amplifier to its particular application-Hig[...]

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  • Page 6

    l o0.a AUTO HIGH CURRENTTM POWER SUPPLY The REFERENCE amplifier employs an extremely efficient Auto High CorrwP power supply (patent pending). This power supply circuitry automatically customizes your amplifier for optimum efficiency and power output into virtually any impedance load. When other brand amplifiers are driven at low impedances (i.e., [...]

  • Page 7

    l l INSTALLATION STEP 2 b 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 BLTTH or BLT4N Balanced Line Transmitters or some other balanced line audio source. Before installing your system, you should decid[...]

  • Page 8

    (Continued From page 13) INTERNAL The REFERENCE amplifiers are fused with automotive-type fuses. In the event of blown powersupplyfuses, the “FaulY’indicator on the top panel will light. The fuses are accessible via a plastic plug on the bottom of the amplifier. See the chart below to determine the fuse value. Never replace the fuses with a hig[...]

  • Page 9

    .( INST ALLATION STEP 5 L LEVEL SETTING The input levels are adjusted by means of the individual channel input level controls 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 sources with minimal output. In the ideal sit[...]

  • Page 10

    l / INSTALLATION STEP 6 k CROSSOVER ADJUSTMENTS The REFERENCE644s and REFERENCE414s amplifiers incorporate an on- board staggered electronic crossover. 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. In [...]

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    l oaao TROUBLESHOOTING PROBLEM CAUSE No sound and power LED & noJ lit 1 No power or ground at amp 1 No remote turn-on signal 1 Blown fuse near battery No sound, power LED Is lit, and the AIRBASSTM option has not been added. 1 No signal input Fault LED is lit ) The A/RBASSTM switch is in the “IN” position, Move it to the “OUT” position I[...]

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