PWR-ICE250 Manual
miniDSP Ltd – Hong Kong / Email :
/ Features and Specifications are subject to change without prior notice
P 10
2.3.4
Audio connectivity
The PWR-ICE 250 can accept multiple types of audio format (Analog or Digital). The input source is selectable to one of the source
(via software)
Analog Balanced Audio input connectivity pin out
Analog unbalanced (RCA) connectivity pin out
Digital Balanced Audio (AES) input/output connectivity pin out
2.3.5
Analog Audio input sensitivity jumpers
The input sensitivity (Maximum level before saturation) of the module can easily be modified with jumpers to better fit your
equipment. Note that all changes must be performed with the amplifier OFF and jumpers of a channel must all be in the same state
(e.g. all 3 jumpers of channel 1 OPEN).
2.3.6
Amplifier jumper pads
The PWR-ICE250 features an amplifier module with “symmetric” output level. In most 2 way situations (e.g. 2way box with sensitive HF
frequency), the high frequency would typically only require a fraction of the power of the low frequency driver. While the level could
be adjusted inside the DSP, we added an analog pad on the board to “pad” the analog signal instead. See below jumper and state
for more information. By default, all jumpers will be closed (0dB and no attenuation)
Balanced connection
1 = > Cable Shield
2 = > Positive cable
3 = > Return cable
Unbalanced connection
1 = > Cable Shield
2 = > Positive cable
Digital Balanced connection (AES)
Digital unbalanced connection (SPDIF)
1 = > Cable Shield
2 = > Positive cable
3 = > Return cable
1 = > Cable Shield
2 = > Positive cable
3 = > Not required
Jumper
Unbalanced
Balanced
Open
Closed
2Vrms Max
1Vrms Max
8Vrms Max
2Vrms Max
Jumper
Output level
Open
Closed
-16dB
0dB / No attenuation.
Channel 1 (L)
Channel 2 (R)
