15
A 10dB input pad is activated when the channel detects a +48v phan-
tom signal is present on the MAIN OUTPUT. This allows the front of
house mixing engineer to remotely reduce the input signal if he de-
tects that the channel is being overdriven. This is a not uncommon
occurrence in live rock and roll, when musicians get into the spirit of
a performance and sing louder than during sound checks.
A front panel LED indicates when REMOTE ATTENUATOR is active.
Because the attenuator slightly degrades the noise and common mode
performance of the unit it is recommended that the system is set up and
calibrated without the remote attenuator activated, and that it is reserved
for emergency use as described above.
The remote attenuator function cannot be disabled, so the engineer
should observe the same caution with the desk phantom switch as he
would if a phantom powered microphone were directly connected to the
desk input.
CAUTION! USE OF THE DESK PHANTOM SWITCH IS ALMOST
CERTAIN TO PRODUCE AN AUDIBLE CLICK SO IT IS
RECOMMENDED THAT THE CHANNEL BE CLOSED BRIEFLY DURING
SWITCHING.
Pressing the LISTEN switch connects the channel signal to the
HEADROOM meter and headphone amplifier on the MSR-602 II power
supply. It is a momentary switch which needs to be held in during
monitoring.
The listen bus is arranged in such a way that only one channel will
register on the monitor section at any time. If two listen switches are
pressed at the same time the one that is closest in the chain to the PSU
will register. See the MSR-602 II controls section for further details.
CAUTION! ALWAYS TURN LEVEL DOWN BEFORE LISTENING TO
UNKNOWN SIGNALS. HIGH EFFICIENCY HEADPHONES AND A
HOT SIGNAL CAN PRODUCE DANGEROUS SOUND PRESSURE
LEVELS. OBSERVE THE WARNING SYMBOL NEXT TO THE
HEADPHONE SOCKET.
REMOTE ATTENUATOR
LISTEN
MSR-604 II Controls
Summary of Contents for MSR-600 II Series
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