miniDSP Ltd – Hong Kong / Email :
/ Features and Specifications are subject to change without prior notice
P 6
Sensitivity Jumpers
ALL OPEN (default): 2Vrms max on unbalanced
ALL CLOSED (unbalanced signal only!): 0.9Vrms max input
Template jumper
configuration per channel
2.2.1
DC Power connectivity
miniDSP 10x10 Hd is provided with a universal 12V DC power supply with IEC power connector. If the IEC cable provided isn’t the
same as your country’s plug, you can easily source/re-use such cable from computer supplies.
Note that we recommend you to plug the Power Supply to the miniDSP enclosure before connecting it to the AC power.
2.2.2
Audio connectivity
miniDSP can accept both balanced and un-balanced audio inputs/outputs. See the below instructions for audio connectivity on
your miniDSP Balanced kit. If a different input/output level is required in order to achieve best gain structure, the enclosure can be
opened in order to configure the internal jumpers correctly.
Signal
Max input/Max output
Maximum Input signal @ 0dBFS
RCA connector: 2Vrms (+8 dBu) or 0.9Vrms depending on input jumper position
Phoenix Terminal block: 4Vrms (+14 dBu) with an unbalanced signal, 8Vrms with a
balanced signal (20dBu)
Maximum Output signal @ 0dBFS
RCA connector: 2Vrms or 0.9Vrms depending on output DIP switch position
Phoenix Terminal block: 4Vrms (+14 dBu) with an unbalanced signal, 8Vrms
balanced with a signal (20dBu)
Balanced connection (In/Out): Follow connectivity as shown on underside of the board.
o
S = > Cable Shield
o
+ = > Positive cable
o
- = > Return cable
Sensitivity Jumpers for unbalanced inputs
A set of jumpers is available to modify the input sensitivity (i.e. max input) from 2Vrms to 0.9Vrms for
unbalanced inputs only
. Sensitivity
is the maximum signal before an input saturates so if your signal is too small (e.g. MP3 player), you can optimize your “gain structure”
by modifying the input jumpers to 0.9Vrms for a “more sensitive” input.
Note that this jumper configuration should
not
be used when a balanced signal is used. Please make sure to carefully
configure your jumper accordingly. By default, note that all boards are configured without jumpers (i.e. 2Vrms setting) so
both unbalanced and balanced can be used.
Board Layout arrangement for input jumper configuration
CH 1
CH 3
CH 5
CH 7
CH 2
CH 4
CH 6
CH 8
CH 2
