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4.5 BIAMP SOUND REINFORCEMENT
1622 Mixer
Low Frequency Speakers
High
Low
Frequency
Frequency
Outputs
Outputs
Ins
Crossover
High Frequency RA-100
in
in
out
out
Outs
Ins
Low Frequency RA-100
High Frequency Drivers
Biamplification splits a signal into two separate lines. One carries low
frequency signals and the other carries high frequency signals. Each split feeds
its own power amp and set of speakers. The main advantages of
biamplification are greater efficiency and lower intermodulation distortion
since low frequency speakers need not carry high frequencies (and high
frequency speakers won't receive low frequencies).
In this setup, an Alesis 1622 mixer feeds a crossover that generates the
separate high and low frequency splits. The low frequencies go to one RA-100
which drives the low frequency speaker system; the other RA-100 handles the
higher frequencies and drives a set of high frequency speakers.
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