Clock Audio AM 81 - Manual (Page 8)

08
Detailed Settings
See printed details on inside of AM 81 lid for location of switch and potentiometer locations
1 Switching for Pre-Amplifier Output
Each output may be configured to operate before or behind the gate, this is programmed
via switches on the main PCB as follows:
2 Gate Attenuation Adjustment
Attenuation of each of the individual Pre Amplifier outputs is adjusted via a series of
potentiometers as follows:
3 Maximum Gate Attenuation
Two levels of attenuation are available -20dB or -40dB, this is selected via the marked
switches on the main PCB as follows:
Selecting the -20dB option with the gate closed will provide an output signal to the main
output, however in the -40dB position there is no output signal to the main output.
NB The factory default is set at -40dB.
4 Limiter Switch
Each channel has the option to select on or off the limiter circuit, this is selected via the
marked switches on the main PCB as follows:
With the limiter switch in the off position the gain from the main output will increase
to18dBV, the level from the corresponding Pre Amp output will also increase.
NB it is recommended that the volume of the selected channel is reduced to compensate
this increase.
5 Adjusting Limiter Levels
It is possible to adjust the limiter levels for each channel, this is selected via the marked
potentiometers on the main PCB as follows:
Adjustment of these controls will vary the maximum output volume for each channel from
the main output of the mixer.
6 Output Levels
The AM 81 main output is provided via a 3pin XLR~M connector and is balanced, and
is factory set at 0dB/line level. It is possible to change this output via SW5 on the main
PCB, this will change the output to -50dB/mic level.
Ch1 Ch2 Ch3 Ch4 Ch5 Ch6 Ch7 Ch8
SW8 SW10 SW12 SW14 SW16 SW18 SW20 SW22
Ch1 Ch2 Ch3 Ch4 Ch5 Ch6 Ch7 Ch8
VR1 VR2 VR3 VR4 VR5 VR6 VR7 VR8
Ch1 Ch2 Ch3 Ch4 Ch5 Ch6 Ch7 Ch8
SW7 SW9 SW11 SW13 SW15 SW17 SW19 SW21
Ch1 Ch2 Ch3 Ch4 Ch5 Ch6 Ch7 Ch8
SW23 SW24 SW25 SW26 SW27 SW28 SW29 SW30
Ch1 Ch2 Ch3 Ch4 Ch5 Ch6 Ch7 Ch8
VR9 VR10 VR11 VR12 VR13 VR14 VR15 VR16