Manual-2
FRONT PANEL DESCRIPTION
햲
POWER switch:
Obediently turns the MA 6S on and off every time you poke it with your finger (or other suitable object).
All six Channels have delayed turn-on/instant turn-off relays to eliminate any switching transients.
햳
THERMAL Overload indicator:
Lights red if the MA 6S becomes too hot, indicating that power has been removed from
all six Channels. Be sure to check the fan filter and actual speaker impedances if this lights up.
햴
POWER indicator:
Lights yellow whenever the MA 6S POWER switch (
햲
) is turned on.
햵
READY indicators:
Light green whenever the mute relay is passing the signal through to the speaker. Normal operation is
the
on
status.
햶
SOA LIMIT indicators:
Light red whenever a Channel leaves the Safe Operating Area (SOA). This means the amplifier
turned down the Input level quickly and automatically, avoiding over-dissapation. Input signals 30 dB over a safe limit will
cause the READY indicator and mute relay to turn off until the amplifier has been turned off and the problem corrected.
Normal operation is the
off
status.
햷
CLIP LIMIT indicators:
Light red whenever a Channel’s Output cannot follow its Input. The amplifier has turned down
the Input level quickly and automatically, avoiding audible distortion. Normal operation is the
off
status.
햸
CHANNEL LEVEL controls:
Determine the Input sensitivity of each respective Amplifier Channel. At its full clockwise
position, an Input signal of 0 dBu (.775 vrms) drives the Amplifier to full power. As the controls are rotated counterclock-
wise, more Input signal level will be needed to achieve full power. If the calibrations appear backwards with respect to most
level controls, it is because they are Input sensitivity markings, not attenuation indications.
NOTE: To install the MA 6S security covers, which have been supplied with the Amplifier in the form of six small black plastic
caps, set the six LEVEL controls to the desired position and then pull the knobs off. Insert the plastic covers in the now
vacant holes. You may then sleep soundly knowing that your Amplifier installation cannot be mindlessly violated.
