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MULTICHANNEL POWER AMPLIFIER V1.1 web
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2. INTRODUCTION
Congratulations on your purchase of the ALTAIR MULTICHANNEL series power amplifier. Our
dilated experience in the design and manufacture of audio power amplifiers has led us to carry out a
series of general purpose bipolar power amplifiers of great performances.
There are a lot the characteristics that make of the ALTAIR power amplifiers MULTICHANNEL
series; one of the most highlighted of the audio professional market, here enumerated some:
Multiple protection
The DC output protection and transient suppression commands a relay (per output channel
pairs). It is improved several characteristics of the signal quality by incorporating cascode preamps,
damping factor control and special care to global reliability.
Equally, the conventional thermal switches (based on contacts) has been substituted of the
power modules by solid state sensors whose information completes the double condition of speed
fan control and thermal shutdown protection.
All the protection situations are displayed in the power amplifier front panel.
Clipping circuit limiter
Since most of the damage caused to loudspeakers, and even to the power amplifiers, is
normally the result of the permanence of the power unit during long periods of time in clipping,
It is necessary to have limiter mechanisms that assure their reliable operation.
For this purpose, all the MULTICHANNEL series power amplifiers has a "soft-clipping" circuit
that acts on the output power by comparing the input and output signals. Once it detects a distortion
