Remote Control Unit - Harman AKG P820 TUBE Modo De Empleo

Remote Control Unit

P820
The Remote Control Unit delivered with your microphone

provides the filament and plate voltages for the vacuum tube,

supplies the polarization voltage for the transducer,

lets you select one of nine different polar patterns,

provides a 20-dB preattenuation pad, and

allows you to switch in a bass cut filter.
Front Panel
Figure 1: Controls on the Remote Control Unit front panel
A POWER LED: This blue LED is lit to indicate that power to the Remote
Control Unit is ON.
B Polar pattern selector: This rotary switch lets you select the microphone's
polar pattern from omnidirectional (fully CCW) to cardioid (center) to figure
eight (fully CW). Between these settings, there are six intermediate
patterns. All switch positions are detented, so all settings are easily and
unambiguously reproducible.
C Preattenuation switch: This toggle switch lets you increase the
microphone's headroom by 20 dB for close-in recording with extremely low
distortion. The preattenuation pad prevents the microphone's output level,
particularly at low frequencies, from overloading the miniature transformers
used in many mixer input stages, etc.
D Bass cut switch: This toggle switch lets you reduce low-end distortion
caused by footfall or wind noise, etc. The bass cut filter also minimizes the
proximity effect that close-in miking from less than 4 inches causes in any
unidirectional microphone. The filter rolls off at 12 dB/octave from 80 Hz
downward.
Description
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