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Soundstream Technologies Stereo Amplifier manual

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Table of contents for the manual

  • Page 1

    1 REFERENCE Class A PICASSO PICASSO 4/3/2 Channel Power Amplifier OWNERS MANUAL AND INS TALLATION GUIDE[...]

  • Page 2

    2 CONGR ATULATIONS! You now own the REFERENCE Class A PICASSO PICASSO Amplifier , the most musical amplifier ever created for the 12 volt environment. Your Soundstream REFERENCE Class A PICASSO amplifier will outperform any other amplifier in the world. To maximize the performance of your system, we recommend that you thoroughly acquaint yourself w[...]

  • Page 3

    3 TABLE OF CONTENTS Design Features ........................................................................................................ 4 - 5 REFERENCE Class A PICASSO Diagram ..................................................................... 6 - 7 Selecting Input Modes .......................................................................[...]

  • Page 4

    4 DESIGN FE ATURES • Audiophile Circuit Topology - The REFERENCE Class A PICASSO is designed with the shortest signal path possible, resulting in the most sonically tr ansparent amplifier Soundstream has ever built! • 2 ohm Satellite Drive Ability - The REFERENCE Class A PICASSO amplifier is designed to drive satellite speaker loads down to 2 o[...]

  • Page 5

    5 range from 13.2 to 14.4 volts. • Fault Monitor LED on the top panel notifies you of blown power supply fuses. • Dual Discrete Class A Drive Stages - Over six times th e drive current of most amps, which maintains performance into low impedance loads. • Drive Delay TM Muted Turn - on/off Circuit - A unique circuit which completely eliminates[...]

  • Page 6

    6 PICASSO PICASSO[...]

  • Page 7

    7 Key to Callouts 1. Fault LED - Indicates a blown fuse. 2. Power LED - Indicates amplifier power on. 3. Input Overload Indicators - Indicates the signal input level or input gain level is too high - channels 1 & 2. 4. Input Level Selector Switch - Selectable input sensitivity range from 0.2 - 2 Volts RMS, or from 0.5 - 5 Volts RMS - channels 1[...]

  • Page 8

    8 INS TA LL ATION STEP 1 COHERENT STEREO™ / MIXED - MONO / BRIDGED MONO The REFERENCE Class A PICASSO amplifier has the ability to operate in any one of the following modes: Coherent Ste reo™ with identical left and right stereo channels for maximum fidelity. Best choice for satellite speakers. Use this mode unless Mixed - Mono is necessary. Mi[...]

  • Page 9

    9 INS TA LL ATION STEP 2 BALANCED / UNBALANCED INPUT The REFERENCE Class A PICASSO amplifier has the ability to accept either standard Unbalanced RCA signal inputs, or Balanced "Pro Audio" inputs with the use o f the Soundstream BLT Balanced Line Transmitter or some other balanced line audio source. Before installing your system, you shou[...]

  • Page 10

    10 WIRING POWER AND GROUND To ensure maximum output from your REFERENCE Class A PICASSO amplifier, use high quality, low - loss power and ground cables. The PICASSO amplifier will accept up to 4 gauge power and ground cables. Determine from the chart below the minimum gauge power and ground wire for your application. INS TA LL ATION STEP 3 up to 10[...]

  • Page 11

    11 INS TALLATION AND MOUNTING 1. AMPLIFIER LOCATION The REFERENCE Class A PICASSO amplifier employs highly efficient ci rcuitry 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 extre[...]

  • Page 12

    12 INS TA LL ATION STEP 5 NOTE: Even though the S/N ratio with low output sources is better with the PICASSO amplifier than others, your best combination of output level and Signal to Noise ratio will be achieved when the input levels a re set between 500 mV and 5.0 V. LEVEL SETTING The input levels are adjusted by means of the individual channel i[...]

  • Page 13

    13 SAMPLE SYSTEM #1 4 channels of input 4 channels of full range output External input to channels 3 & 4[...]

  • Page 14

    14 SAMPLE SYSTEM #2 4 channels of high pass input to the PICASSO 4 channels of high pass output to satellite speakers E xternal input to channels 3 & 4 from an external crossover - - - - - - - - - 2 channels of low pass input to the Class A 10.0 or other amplifier 1 Bridged Mono channel of low pass output to subwoofers[...]

  • Page 15

    15 SAMPLE SYSTEM #3 2 channels of high pass input to the PICASSO 4 channels of high pass output to satellite speakers Internal input to channels 3 & 4 from an external crossover - - - - - - - - - 2 channels of low pass input to the Class A 10.0 or other amplifier 1 Bridged Mono channel of low pass output to subwoofers[...]

  • Page 16

    16 SAMPLE SYSTEM #4 2 channe ls of high pass input to the PICASSO 2 channels of bridged high pass output to satellite speakers External input to channel 4 from an external crossover - - - - - - - - - 2 channels of low pass input to the Class A 10.0 or other amplifier 1 Bridged Mono channel of low pass output to subwoofers[...]

  • Page 17

    17 SAMPLE SYSTEM #5 2 channels of high pass input to the PICASSO, with 2 stereo channels driving tweeters 2 channels of band pass input to the PICASSO, with 2 stereo channels driving mid - range speakers External input to channels 3 & 4 from an external crossover - - - - - - - - - 2 channels of low pass input to the Class A 10.0 or other amplif[...]

  • Page 18

    18 PROTECTION CIRCUITRY Your REFERENCE Class A PICASSO is protected against both overheating and short circuits by means of the following circuits: • Main power supply fuses • Smart Power Supply Thermal Rollback activating at 85°C. • A fail - safe thermal protection circuit activating at 95°C. Your amplifier also incorporates an innova tive[...]

  • Page 19

    19 SPECIFIC ATIONS SERVICE The REFERENCE Class A PICASSO is protected by a limited warranty. Please read the enclosed warranty card. THD <0.1% Signal to Noise >100 dB Frequency Response 20 Hz to 20 kHz ± 0.5 dB Stereo Separation >90 dB Damping >200 Input Sensitivity 200 mV - 2.0 V, or 500 mV - 5.0 V Input Impedance 12 k Ω W x D x H: [...]

  • Page 20

    20 SOUNDSTREAM TECHNOLOGIES 120 Blue Ravine Road  Folsom  California 95630 USA[...]