DSP 4x4 Operations Manual Rev E
Page 7
Pre-wired unbalanced connectors are available for purchase from Stewart Audio. The summing
adapters will properly sum a stereo source for use with the mono input on the rear of the DSP 4x4
without causing sound cancellation. Part numbers are found below the diagrams.
5.3.3.3
Phantom Power
The DSP 4x4 is designed with software-selectable 24VDC phantom power on all 4 channels capable
of supplying 25mA per channel. This power level is sufficient to operate most condenser
microphones in a typical DSP 4x4 application.
Phantom power can be switched on/off via the Input Block of the
or using RS–232 commands documented in Section 5.3.5.
When phantom power is being supplied on a channel, the appropriate LED indicator on the rear of
the DSP 4x4 will illuminate.
Caution: Microphones or other input devices which do not require phantom power can be permanently
damaged by the application of phantom power. Stewart Audio will not be held responsible for damage
to these devices.
Caution: Phantom power should not be used with the summing adapters in Section 5.3.3.2. The power
will be dissipated in the adapter and will not reach the microphone or other input device.
5.3.4
Output Connections
Your DSP 4x4 is provided with a 3-pin Euro-style connector for each output. This connector offers a
balanced output to interface with the input of another device.
ADPT-RCA
Mono
Female RCA
ADPT-SUMRCA
Stereo
Female RCA
ADPT-SUM35
Stereo
Female 3.5mm