miniDSP Ltd, Hong Kong /
/ Features and specifications subject to change without prior notice
42
5.5
V
OLUME CONTROL
Master volume control of all output channels can be accomplished with a 10 k
Ω
linear potentiometer connected
to the designated 3-pin header (standard
0.1”/
2.54mm pitch). The wiring diagram for the potentiometer is
shown in the diagram below. No attenuation (maximum volume) is applied when pin 2 of the header is at 3.3 V,
while maximum attenuation (minimum volume) is applied when pin 2 is at 0 V.
For your convenience, a suitable potentiometer already wired to a 3-pin female connector can be purchased
together with the kit board, or separately from the Accessories section of our
The connection to the volume header must be performed with the board powered down. If your
volume control operates in reverse i.e. volume decreases as the pot is rotated clockwise, turn off
connected equipment, remove power from the miniDSP board, and reverse the connector.
A single potentiometer can be connected to multiple miniDSP kit boards. This allows master volume control of
eight or more output channels. This diagram illustrates the wiring for master volume control of multiple boards:
Finally, to enable the master volume control, use the
Enable
button in the
System settings
tab of the plugin user
interface. (This
must
be disabled if no potentiometer is in place.)
