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Soundstream Technologies 404s manual

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Table of contents for the manual

  • Page 1

    20 SOUNDSTREAM TECHNOLOGIES 120 Blue Ravine Road  Folsom  California 95630 USA ph 916.351.1288  fax 916.351.0414 rev A - 4.25.96 SERIES AND PARALLEL WIRING 2 - 4 ohm drivers in parallel = 2 ohms 2 - 4 ohm drivers in series = 8 ohms 4 - 4 ohm drivers in parallel =1 ohm 1 REFERENCE 404s 4/3/2 Channel Power Amplifier OWNERS MANUAL AND INS TAL[...]

  • Page 2

    2 CONGR ATULATIONS! You now own the REFERENCE404s Amplifier , the product of an uncompromising design and engineering phi losophy. Your Soundstream REFERENCE404s amplifier will outperform any other amplifier in the world. To maximize the performance of your system, we recommend that you thoroughly acquaint yourself with its capabilities and feature[...]

  • Page 3

    18 PROTECTION CIRCUITRY Your REFERENCE404s amplifier is protected against both overheating and short circuits by means of the following circuits: • Auto High Current ™ power supply • Main power supply fuses • Circuit breaker on each channel • Smart Power Supply Thermal Rollback activating at 85°C • A fail - safe thermal protection circ[...]

  • Page 4

    4 DESIGN FEATURES • Uncompromising Design and Construction including mil - spec glass epoxy circuit boards and high current custom gold - plated solid brass connections that will accept up t o 4 gauge power/ground wire. • Auto High Current™ - Soundstream’s newest exclusive circuit which automatically customizes your amplifier to its particu[...]

  • Page 5

    16 SAMPLE SYSTEM #3 2 channels of input with 2 channels of bri dged high pass output External input to channels 3 & 4 with an external crossover 5 • Fault Monitor LED on the top panel notifies you of blown power supply fuses. • 1/2 ohm Drive Ability - The REFERENCE404s amplifier is designed to drive virtually any load — all the way down t[...]

  • Page 6

    6 Reference404s 15 SAMPLE SYSTEM #2 2 channels of input with 4 stereo channels of high pass output Internal input to channels 3 & 4 with an external crossover[...]

  • Page 7

    14 SAMPLE SYSTEM #1 4 channels of input 4 channels of full range output 7 Key to Callouts 1. F ault LED - Indicates a blown fuse. 2. High Power LED - Indicates amplifier power on in "High Power" mode. 3. Auto High Current™ LED - Indicates amplifier power on in "High Current" mode. 4. +12V - Connected to a fuse or circuit break[...]

  • Page 8

    8 OTHER CO MMENTS: If you blow fuses with the REFERENCE404s amplifier, it is likely that the amplifier is seeing a dead short, either in the speake r wire or in the speaker itself. Rectify the problem before blowing multiple fuses! AUTO HIGH CURRENT™ POWER SUPP LY The REFERENCE404s amplifier employs an extremely efficient Auto High Current™ pow[...]

  • Page 9

    12 INS TALLATION AND MOUNTING 1. AMPLIFIER LOCATION The REFE RENCE404s amplifier employs highly efficient circuitry and a unique Chassisink TM design to maintain lower operating temperatures. Additional cooling may be required if the amplifier is located in a tightly c onfined area or when driving especially low impedance loads at extremely high le[...]

  • Page 10

    10 WIRING POWER AND GROUND To ensure maximum output from your REFERENCE404s amplifier, use high quality, low - loss power and ground cables. The REFERENCE40 4s amplifier will accept up to 4 gauge power and ground cables. Determine from the chart up to 10’ up to 20’ REFERENCE404s Soundstream Power40 or Power80 (4 or 8 ga.) Soundstream Power40 (4[...]