Cadac R-Type - Manual (Page 59)

Mono Input Channel 8241 7-5
Revision R2005-2 R-Type
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Each band of the equalizer consists of 3 controls. Two controls are combined on a
dual concentric control. The top knob controls the Cut and Boost and the bottom
knob controls the centre frequency. The third control of each section varies the ‘Q’
factor.
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This dual concentric control allows the centre frequency to be adjusted between
1K5Hz to 15 KHz by the bottom knob and the cut and boost to be adjusted by ±18dB
by the top knob. The top knob also has a centre detent which disables this section of
the equalizer.
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The ‘Q’-control varies the bandwidth of the cut/boost frequency selected as per
6.1.12. As indicated on the front panel when turned towards the low ‘Q’ symbol (‘Q’
approximately 1.0) will cause a wide bandwidth of frequencies to be affected around
the selected center frequency. When set towards the high ‘Q’ symbol (‘Q’ approxi-
mately 3.0) a narrow band of frequencies will be affected around the centre fre-
quency.
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This dual concentric control allows the centre frequency to be adjusted between
400Hz to 4KHz by the bottom knob and the cut and boost to be adjusted by ±18dB
by the top knob. The top knob also has a centre detent which disables this section of
the equalizer.
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The ‘Q’-control varies the bandwidth of the cut/boost frequency selected as per
6.1.12. As indicated on the front panel when turned towards the low ‘Q’ symbol (‘Q’
approximately 1.0) will cause a wide bandwidth of frequencies to be affected around
the selected center frequency. When set towards the high ‘Q’ symbol (‘Q’ approxi-
mately 3.0) a narrow band of frequencies will be affected around the centre fre-
quency.
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narrow wide
variable ‘Q’
Boost
Cut