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SERIES AND PARALLEL WIRING
REFERENCE
Class A
5.0 & 10.0
Power Amplifiers
2-4 ohm drivers in parallel
= 2 ohms
INS
4-4 ohm drivers in parallel
=1 ohm
2-4 ohm drivers in series
= 8 ohms
120 Blue Ravine Road Folsom California 95630 USA
ph 916.351.1288 fax 916.351.0414
rev B - 4.17.96
20
1
SOUNDSTREAM TECHNOLOGIES
TALLATION GUIDE
AND
OWNERS MANUAL
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CONGRATULATIONS! SERVICE Your Soundstream REFERENCE Class A amplifier is protected by a limited You now own the REFERENCE Class A Amplifier , the product of an uncompromising design and engineering philosophy. Your Soundstream REFERENCE Class A amplifier will outperf orm any other amplifier in the world. To maximize the performance of your system, we recommend that you SPECIFICATIONS thoroughly acquaint yourself with its capabilities and feature s. Please POWER 4 Ω Stereo 2 Ω Ste
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PROTECTION CIRCUITRY TABLE OF CONTENTS Your REFERENCE Class A amplifier is protected against both overheating and short circuits by means of the following circuits: • Design Features ................................ ................................ . 4 - 5 • Smart Power Supply Thermal Rollback activating at 85°C. • A fail - safe thermal protection circuit activating at 95°C. AIRBASS™ ................................ ................................ ............. 5 Your amplifier
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LSE.Q THEORY AND USE (continued) DESIGN FEATURES 8.0 This is due to the loss of any 7.0 • Pure Class A Output Topology for the utmost in musicality and definitive appreciable resistive air mass. At 6.0 power output. Soundstream's unique design allows the Class A amplifiers to 5.0 frequencies below resonance, the 4.0 incomparable sonics or, when operated at lower impedances, to woofer starts to behave as i f it were 3.0 provide phenomenal amounts of power . 2.0 mounted in “free - air
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LSE.Q THEORY AND USE (Class A 10.0) LSE.Q is a unique subwoofer control circuit most amplifiers in the Class A 5.0, and over twelve times in the Class A included with the SOUNDSTREA M 10.0! More drive current maintains the amplifiers' per formance into low REFERENCE Class A 10.0 amplifier. It is impedance loads. capable of removi TM material. The circui t consists of two controls. •Drive Delay Muted Turn-on/off Circuit - A unique circuit which One adjusts the frequency of operation
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INSTALLATION STEP 5 Class A 5.0 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 - s circuit that adjusts both level and gain. This topology maintains better Signal th minimal output. In the ideal situation, all components in the audio system reach maximum undistorted output at the same time. The reason is bec ause an amplifier will only make what comes into it bigger.
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INSTALLATION STEP 4 INSTALLATION AND MOUNTING Key to Callouts 1. AMPLIFIER LOCATION The REFERENCE Class A amplifiers employ highly efficient circuitry and a 1. Fault LED - Indicates a blown fuse. unique Chassisink design to maintain lower operating temperatures. 2. Power LED - Indicates amplifier power on. Additional cooling may be required if the amplifier is located in a tightly 3. Input Overload Indicators - Indicates the signal input level or input gain confined area or whe
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Class A (Continued from page 12) of blown power supply fuse, the “Fault” indicator on the top panel will light. The fuse is accessible from the front panel of t he amplifier. See the chart Never replace the fuses with a higher value than what is supplied. This may result in amplifier damage and will REFERENCE Class A Amplifier Fuse Values Amplifier Amplifier Fuse Battery Fuse / Circuit Breaker 40 amp Maxi - 60 amp Class A 5.0 Class A 10.0 80 amp Maxi - 100 amp REMOTE TURN-ON Con
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INSTALLATION STEP 3 Key to Callouts WIRING POWER AND GROUND To ensure maximum output from your REFERENCE Class A amplifier, use 1. Fault LED - Indicates a blown fuse. high quality, low - loss power and ground cables. The REFEREN CE Class A 2. Power LED - amplifier power on. amplifiers will accept up to 4 gauge power and ground cables. Determine 3. LSE.Q Bypass Switch - Turns the LSE.Q on ("IN") or off ("OUT"). 4. Input Overload Indicators - Indicates the signal input level or in
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INSTALLATION STEP 2 INSTALLATION STEP 1 COHERENT STEREO™ / BALANCED / UNBALANCED INPUT MIXED-MONO / BRIDGED MONO The REFERENCE Class A amplifiers have the ability to accept either a standard Unbalanced RCA signal inputs, or a Balanced "Pro A udio" inputs with The REFERENCE Class A amplifiers have the ability to operate in any one of the use of the Soundstream BLT Balanced Line Transmitter or some other the following modes: balanced line audio source. Before installing your system,
