Speakons - QSC SRA 1222 User Manual

CONNECTIONS-
Biamp Operation
In biamp, one channel is used for lows, while the
other channel is used for highs. It requires the use
of signal processing equipment between the
source material and the amplifier. Always test the
system at the lowest practical power level for
proper operation.
Biamp-ready loudspeakers have no crossover and
connect to the amplifier using the four-conductor
Speakon. Some loudspeakers feature switchable
passive or active (biamp) crossover configuration.
Make sure any switchable loudspeaker is set for
Active mode to disable the internal crossover if
you are biamping.
Amplifiers designed specifically for biamp opera-
tion have different power points for each channel.
Because high frequency drivers are much more
Outputs: Speakon Biamp Application
4 wire Speakon cable
Speakon cable wiring
efficient than are low frequency drivers, less
power is required at higher frequencies. Biamp
makes more efficient use of the power available
from a given amplifier and provides more head
room at lower frequencies. Triamp systems add
one more level of frequency separation for amplifi-
ers and speakers.
Conventional speaker crossovers consist of
inductors, capacitors, and resistors. The heat
generated in these components is power that could
be delivered to the speaker. Near the crossover
frequency, power loss can be close to 50%! No
wonder professional sound companies prefer the
multi-amplification approach. Biamp, triamp, or
more...... it makes best use of the available AC
power to produce sound.
Biamp-ready loudspeaker
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