Speck Electronics SSM - Manual (Page 28)

Chapter 4 Operation Section
The Low/Mid Frequency Sweep Control is used in conjunction with the
Low/Mid - Boost/Cut Control and provides continuous adjustment from
50hz (fully counterclockwise) to 500hz (fully clockwise) when the Low/
Mid Band Select Switch (see below) is in the Low position. This
control provides continuous adjustment from 500hz (fully
counterclockwise) to 5Khz (fully clockwise) when the Low/Mid Band
Select Switch is in the Mid position.
This switch determines the frequency range affected by both the Low/
Mid - Boost/Cut control and the Sweep control. The up position selects
the low (50 to 500hz) range while the down position selects the mid
(500hz to 5khz) range.
In the up position the equalizer section is totally bypassed. When this
switch is depressed, the equalizer is inserted in the channels audio path.
The green LED to the right of this switch illuminates indicating that the
equalizer is enabled.
Eight discrete effect sends are configured as four dual concentric
potentiometers. The center (smaller) knobs are numbered 1 thru 4 (top
to bottom) and the outer (larger) knobs are numbered 5 thru 8 (top to
bottom).
Each stereo channel also incorporates an effects Sum/Split switch
(located at the rear). When this switch is in the Sum position, the source
for effects sends 1 thru 8 is the algebraic sum of the left and right synth
signals, post (after) the input level control. When the Sum/Split switch
is in the split position, the source for effects sends 1 thru 4 is the left
synth signal, and the source for effects sends 5 thru 8 is the right synth
signal.
The effects sends may be operated in the pre mode with the operation of
the Kill switch.
The P-M switch has two designations. "P" is the designation for the pre
fader listen (PFL) switch, and is found only on mono input channels.
"M" is the designation for the Stereo/Mono switch, and is found only on
stereo input channels.
On the stereo channel, this switch acts as the Stereo/Mono select. When
depressed, this switch sums the left and right inputs together, creating a
mono composite. When the channel is in the mono mode, the Pan/
Balance Control is then used for traditional left to right panning of the
mono (mono composite) synth signal.
8. Effects Sends 1 thru 8
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5. Low and Mid Frequency
Sweep Control
6. Low/Mid Select Switch
7. Equalizer In/Out Switch
9. P-M Switch
Stereo/Mono Select Switch