Inputs:
XLR in:
Balanced input. Nominally Pin 2 high (Pin 3 - low, Pin 1 - ground)
Mic Power:
Mic power off. For example, dynamic and radio microphones. Phantom power =
positive DC voltage on both Pins 2 and 3, set for 48v.
Phase:
It is important that the phase of the microphones are matched to avoid phase
cancellation. Absolute phase throughout the system should also be maintained.
Pad:
Effective in both mic and line positions. For typical SPL (sound pressure
levels) pads are not necessary due to the high system headroom. The use of pads
will degrade the signal to noise ratio if used within the range of the microphone gain
trim.
HP Filters:
Sharp roll-off to reduce microphone handling noise and other low frequency
disturbances. It is recommended to use these for dialogue recording as the
bandwidth of interest normally exceeds 100 Hz.
PFL:
Selects prefade listen. All other inputs to Monitor 1 will be disconnected (except
private line and communication in).
Channel Fader:
For optimum headroom and versatility it is best to operate the channel fader around
the zero point. Therefore, the microphone preamp gain trim should be adjusted
during rehearsals with the channel fader at ‘0’ so that the average program level will
modulate the meter to ‘0’ dB. During the take, the channel fader may be used for
controlling the channel gain.
O/L LED:
Nominally set for 3 dB below M.O.L. (maximum output level) with the channel fader
at ‘0’. Occasional flash of the indicator on peaks is not a problem. If the indicator is
consistently on, microphone preamp gain should be reduced.
Direct Out:
Post fader. (eg; feed to playback systems or a direct feed to multi-track recorders)
Output Section:
Monitor 1 Section:
Main phones out, on the front panel.
Solo, Off, On
Any combination of busses can now be monitored.
Selected busses can be monitored in mono, stereo or M/S.
To facilitate checking of busses, it is recommended to assign the main monitor
requirements to the ‘on’ position and spot check by soloing the other inputs. This is
quicker than assigning the mains to solo as there is no need to switch off the other
busses.
Note: ‘On’ function - when more than two busses are selected, the signal level
will increase to the headphones. Turn down phones level if necessary - especially
when using the line up tone (osc.).
Monitor Pots 1 & 2:
To adjust level to phones 1 & 2. Caution: It is recommended to set the ‘phones’ pot
at minimum before wearing headphones. Then increase the level to suit personal
preference. The minimum total load (impedance) per side is 25
!
.
OPERATIONAL & APPLICATION NOTES
MODEL CS306
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9
June 2006
Содержание CS306
Страница 17: ...NOTES NOTES MODEL CS306 15 June 2006...
