User manual

miniDSP Ltd – Hong Kong / Email :
[e-mail] / Features and Specifications are subject to change without prior notice
P 8
Channel
number
UP position (Default)
8Vrms (balanced)
2Vrms (Unbalanced)
DOWN position
4Vrms (balanced)
0.9Vrms (Unbalanced)
Output gain control:
A blue DIP switch control on the output section allows user to control the output gain of both the unbalanced and balanced outputs
on a “per channel” basis.
2.2.3 Potentiometer for master volume control
A single external 10k or 100k logarithmic potentiometer (to be provided by user) can control all output channels (analog + digital).
All connections between the board and the potentiometer shall be done with the board turned OFF to prevent any damage to the
electronic. See below diagram on how to connect the potentiometer directly to the connector. In the event of the volume control
behavior being reversed (clockwise decreasing volume), simply swap the ground and 3.3V pins on the potentiometer.
Once the potentiometer connected, you will need to enable the master volume control by ADC in the plug-in. In the output section
of each configuration, make sure to enable the “ADC mode” as shown above.
2.2.4 Front panel USB port
For integrations requiring a panel mount USB connector, the miniDSP includes a 5 pin, 0.1” (2.54mm) pitch connector. Such
connectors are very typical in the computer industry and look as shown below. Although a standard connector, you should confirm
the pin-out with your manufacturer or you could easily cause damage to your computer or miniDSP kit.
GROUND
3.3V