380 Appendix E: I/O Modules
PRO Series Live Audio Systems
Owner’s Manual
DL441 analogue input module
The DL441 analogue input module provides eight balanced line (or mic) inputs. Its rear
panel houses eight input XLRs, each with a check and a 48V LED.
The line inputs may be used as simple unity gain inputs to the PRO6, such as insert
returns. However, there is also provision for gain adjustment in 5dB steps from -5dB to
+40dB. This allows very high signal levels to enter the system and means that the
same hardware can be used for mic inputs, if required by the system.
When used for microphones the input can also provide 48-volt phantom power.
DL441 module connectors
Functional block diagram of the DL441 module
Item Description
1 Eight XLR analogue mic/line inputs.
2 Green check LED illuminates to show when a channel is selected on a
console. These are controlled by the console and are used as a visual aid to
locate specific connectors.
3 Red 48V LED illuminates to show that 48V phantom voltage is on.
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