Owner`s manual

22) MUTE
The operation of this button is functionally identical to the
same labeled button on the face of the SSP-25. This button
mutes the SSP-25’s main outputs. A second push restores
the previously selected operating levels. Record output is
unaffected. The Mute button provides a convenient way to
lower the volume when answering the telephone.
*NOTE
: Turning the volume up with the volume knob will
remove muting, but turning down the volume while in mute
mode will not remove muting, but when muting is removed
the new lower volume level will be present. Muting can be
removed either with the mute button or by turning up the
volume slightly
23) “\/’ VOLUME (down)
Affects Master Level settings in a manner identical to turning
the front panel Master Level Control counterclockwise.
Pressing the button and releasing it causes the volume to
decrease in a 1 dB step. Holding the button down will, after a
brief pause after a 1 dB decrease, cause the volume to
continuously decrease in 1 dB steps until the button is
released. –80 dB is the minimum level.
24) “/\” VOLUME (up)
Affects Master Level settings in a manner identical to turning
the front panel Master Level Control clockwise. Pressing the
button and releasing it causes the volume to increase in a 1
dB step. Holding the button down will, after a brief pause
after a 1 dB increase, cause the volume to continuously
increase in 1 dB steps until the button is released. +35 dB is
the maximum level.