S-4000S Audio Inputs - Roland S-4000S Owner's Manual

To facilitate custom labeling for a particular installation or multiple S-4000 Systems, the S-4000S
is shipped from the factory without channel number labels on its input and output modules.
See Appendix B: Connector Information for an illustration showing the S-4000S's input and output
channels as they correlate to the S-4000H's audio I/O channel numbers and input channel
selection on the S-4000R.
If desired, use the included adhesive-backed number label sheets to affix channel numbers to
the S-4000S's input and output modules.

S-4000S Audio Inputs

The S-4000S's audio inputs are used to send source audio signals to the S-4000H's audio outputs.
Connect the output of balanced audio devices (microphones, instrument outputs, etc.) to the 32
balanced audio inputs on the S-4000S front panel.
To connect unbalanced sources:
• use a direct box—such as the BOSS DI-1—or balancing adaptor in-line
—or—
• a cable adaptor with the following wiring:
When connecting unbalanced sources that require long cable runs (over 6 meters), a direct box
or balancing adaptor placed in-line near the source is recommended for the best audio quality
and noise rejection.
To connect high-impedance sources—such as the output of an electric guitar or bass with passive
pickups—use a direct box or impedance-matching transformer in-line.
Howling (feedback) could be produced depending on the location of microphones relative to
speakers. This can be remedied by:
• changing the orientation of the microphone(s).
• relocating the microphone(s) to a greater distance from the speakers.
• lowering volume levels.
S-4000 Digital Snake Owner's Manual
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6—Using the S-4000 System
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