Speck Electronics SSM - Manual (Page 25)

Chapter 4 Operation Section 20
We hope to give you basic information on the operation of the Model
SSM and adequately describe its controls, switches, and connectors.
It is assumed that you have a working knowledge of audio and signal
flow. If this is your first mixer it is suggested that you purchase a book
on the basic operation of audio mixers. Speck Electronics or your dealer
will be happy to suggest some publications on this subject.
The Model SSM may be configured with either mono or stereo input
channels. The stereo channel will accept any stereo synth signal and all
controls and switches in the signal path will simultaneously adjust the
parameters of the left and right signals. The mono input channel accepts
a single (mono) synth signal, and all controls and switches are designed
to adjust that signal in a conventional manner.
The stereo input channels are identified with a black slide fader knob
and a yellow LED adjacent to the P-M pushbutton switch. The Mono
input channels are identified with a grey slide fader knob and a red LED
adjacent to the P-M pushbutton switch.
The following input channel descriptions are for a stereo input channel
but generally apply to a mono input channel unless otherwise noted.
General
Input Channel
Operation
FRONT PANEL CONTROLS