Phonic ICON 300, Руководство пользователя

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9 ICON 300/700
Parallel Mono Configuration
The "Parallel mode" ties the two channel inputs
together so that both are driven by the same
signal, without the need for external jumpers or
wiring. After the inputs, both channels operate
independently. Though they carry the same signal,
their gain controls affect only their respective
channels, which must be used separately. Please
refer to the previous Rear Panel Description. Never
parallel the speaker outputs.
Low-Impedance and Distributed Speakers on
Icon Amplifiers
If your application calls for connection of an 8 ohm
speaker and a distributed line to the same amplifier
channel, the Icon 300 and Icon 700 are among
the very few amplifiers that can do that. However,
since most of the audio power is drawn by the
direct-connected speaker, you must derate the
distributed line; and the distributed line should have
a total power load of no more than one-fourth of the
amplifiers normal distributed line power rating.

Computing maximum allowable distributed
line load with a known low-impedance
load
MaxTOP = [MaxRatedPL - ((2 x MaxRatedPL)/
Impedance)]/2
MaxTOP is the sum of the power taps of the
speakers connected to the Audio Transformer
outputs.
MaxRatedPL is the maximum rated power of the
amplifier into a two ohm load.
Impedance is the load impedance connected to the
direct outputs.
Example: One channel of an Icon 700 has an 8-
ohm load connected to the Direct (low impedance)
output. Then the maximum power left available
to drive a distributed line is: MaxTOP = [550-
((2x550/8)/2)] = 206 Watts