Filter Types - Euphonix CS3000 Operation Manual

Section 9: Dynamics

Filter Types

9 - 38
There are two filters available. Each filter can be switched to act as a low
pass, high pass, band pass or notch. For the low and high pass, the slope is
12dB per octave. The bandpass and notch filters have a Q of 0.7. This can be
doubled by stacking the two filters together and making them both notch or
band pass with the same center frequency. This increases the combined Q to
1.4. You can also stack low or high pass filters by making them the same type
and with the same center frequency to increase the effective slope to 24dB
per octave.
There are four basic operational modes for the filter pair:
1) No filters in the system
2) Filters in the side chain
3) Filters in the main signal path with the VCA
4) Filters alone without the VCA
The red knobs control the
low filter with a frequency
range of 10Hz-2.64kHz
The red filter occupies the lower frequency range while the blue filter occupies
the higher frequency range. Unlike conventional filter pairs, either or both of
these filters can be switched to any of the four different types. You could have
both filters set as the same filter type if you wish, or you can switch the red
filter to high pass and the blue to low pass to resemble a conventional filter
pair.
The blue knobs control the
high filter with frequency
range from 165Hz - 42.2kHz
Euphonix CS3000/2000 Operation Manual