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Operation Manual
I-Tech HD Series Power Amplifi ers
page 38
Maximum analog
input
Low +21 dBu (0 dB)
High +15 dBu (+6 dB)
Analog
input
AES
input
Cobranet
input
Analog
input
sensitivity
Source
select
AES input trim
Cobranet input trim
Output
attenuator
Fixed
gain
compensation
Limiters
Amplifier
Low +21 26/32 dB
Hi +15 32/38 dB
Fixed gain
4 Advanced Operation
Figure 4.4 The Various Gain Settings in the I-Tech HD
4.8.19 Fixed-Gain Mode in the I-Tech HD
Fixed-gain mode makes any I-Tech HD model have the same gain, regardless
of output power.
To do that, fi xed-gain mode sets the Analog Input Sensitivity to 0 dB gain,
then adjusts the Fixed Gain Compensation fader, and the Maximum
Analog Input, to achieve 26 or 32 dB of gain (if the Maximum Analog Input
is set Low), or to achieve 32 or 38 dB of gain (if the Maximum Analog Input
is set High), no matter what model the amplifi er is.
However, In fi xed-gain mode, the input trims (Analog, AES, CobraNet) can
still be adjusted.