Technical data

31
EQ Frequency
This diagram shows a variation of center frequencies with the EQ gain controller turned fully clock-
wise (HI). The x10 button shifts the complete frequency area by a factor of 10. With settings in the
border areas of the covered frequencies it is also possible to realize ‘almost’ shelving lters, but in
these cases the level has to be adapted with the gain controllers.
SC Gain
The green curve shows an almost linear compression with a constant gain reduction across the
complete frequency spectrum. If the SC gain controller is set to high pass (HP – yellow curve),
however, the low frequencies will not inuence the detection circuit and the gain reduction sets
in only on higher frequencies. In low pass mode (LP – orange curve) just the low frequencies are
fully processed and the intensity of the gain reduction decreases with rising frequencies. Of course
there are a lot of useful interim values between the linear and the extreme positions.
REFERENCE – EQ Frequency & SC Gain