Operation Manual

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.