Crown DriveCore I-Tech 4x3500 HD Operation Manual page 43

I-Tech HD DriveCore Series Power Amplifiers
7 Advanced Operation
Maximum analog
input
Low +21 dBu (0 dB)
High +15 dBu (+6 dB)
Analog
input
AES input trim
AES
input
Cobranet input trim
Cobranet
input
Operation Manual
Source
select
Analog
input
sensitivity
Figure 7.3 The Various Gain Settings in the I-Tech HD
7.7.19 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, fixed-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 amplifier is.
However, In fixed-gain mode, the input trims (Analog, AES, CobraNet) can
still be adjusted.
Fixed gain
Low +21 26/32 dB
Hi +15 32/38 dB
Fixed
Output
gain
attenuator
compensation
Amplifier
Limiters
page 43