16
AUTO-MUTE
When engaged, the "AUTO-MUTE"-function
will create a 4 seconds mute whilst switching
phantom on or off.
When you want to check or alter this function
depress the “PHANTOM”-button permanently.
After two seconds the "48V"-LED will start
flashing and the “ON”-LED over the “MUTE”-
button shows the actual state of the Auto-Mute
function.
LED on: Auto-Mute enabled
LED off: Auto Mute disabled
Pushing the “Mute”-button will change the
state. Releasing the “PANTOM” button will
save the actual state.
THE PAD
The MIC AMP F355's inputs accept levels of
up to +21 dBu. In some applications, this level
capability may still not be sufficient.
Therefore, a resistive network can be inserted
into the signal path by pressing the "PAD"-
button. Offering an attenuation of 12 dB, it
increases the maximum input level to +33 dBu.
Active pad is indicated by the red “-12dB“-LED.
This function is realized without active compo-
nents in the signal path.
NOTE:
The PAD-switch should only be used if
really necessary. Otherwise an even-
tually redundant attenuation must be
compensated by a higher gain setting,
which practically means nothing else
but decreasing signal-to-noise ratio.
PHASE REVERSE
In multiple microphone applications, inverting
one or several microphones' phase can signi-
ficantly improve the the overall mix.
Reason therefore may be position-dependent
time lags between microphones or, in the worst
case, an incorrectly soldered microphone lead.
The "PHASE"-button serves to invert signal
polarity. It is situated on the front panel.
The activated function is displayed by the
yellow “REVERSE”-LED.
This function is realized without active compo-
nents in the signal path.
GAIN SETTING
COARSE
The signal which is input to the XLR socket on
the back is routed to the extremely low noise
gain cell.
THE OPERATION
(1 of 2 Modules)
