Kurzweil K2000 - MUSICIANS GUIDE Musician's Manual page 262

DSP Functions
Filters
Two-pole Lowpass Filter, +12 dB Resonance (LP2RES)
This is similar to LOPAS2; the only difference is that its resonance is Þxed at +12 dB.
Four-pole Lowpass Filter with Separation (4POLE LOPASS W/ SEP)
14-10
10 100
20
10
0
C 5
-10
-20
-30
-40
-50
-60
Resonance = 12 dB
cutoff frequency
-70
from C 4 to C 10
-80
10 100
0
-10
-20
-30
-40
-50
-60
Resonance = 12 dB;
-70
separation = 0;
cutoff frequency from C 5 to C 10
-80
Frequency in Hertz
1000 10000
Frequency in Hertz
1000 10000
C 5
100000
C10
100000
C 10