6
Turn the INPUT GAIN knob down to minimum then, If you are using a
capacitor microphone, plug in the microphone, then switch on the phantom
power by pressing in the 'Phantom' switch. (Do it in that order). NOTE.
Some phantom powered microphones take several minutes to reach correct
working conditions. Remember to switch on at least 5 minutes before using
the microphone.
Turn up the INPUT GAIN until sound registers on the VU meter (VU switch
in). Do not let the VU needle hit the end stop too hard or overload may
possibly happen. The meter electronics has been adjusted so that it is
normal for the needle to move in the red area.
OVERLOAD MARGIN AND THE VU. METER
For steady tones, the '0' on the VU meter corresponds to 0dBu (Where
0dBu is 0.775v RMS on the line output with the output control set at '0').
This setting of '0' is to allow for the considerable under-read that occurs with
all VU meters with music signals. It is normal for the peaks of signals to go
to +10dBu while the VU meter reads only '0'. In practice, when the VU
meter is peaking at or just above '0' the music signal will be well within
normal limits and will have a significant overload margin. Even with the
needle hitting the end stop, the signal will not be distorted; although the
overload margin will be reduced.
(The VU meter is connected before the output gain control)
VC1Q
CS
Studio Channel
- User's guide