Kurzweil K2661 Musician's Manual page 528

DSP Functions
The DSP Functions
Steep Bass Tone Control (STEEP RESONANT BASS)
Steep Resonant Bass:
Frequency
Steep Resonant Bass:
Gain
16-32
Frequency in Hertz
10 100
16
14
12
10
8
6
C 2
4
2
0
-2
-4
10 100
20
18
15
10
6
5
0
-6
-5
-10
-18
-15
-20
1000 10000
Resonance = -3 dB;
gain = 12 dB;
cutoff frequency
from C 2 to C 4
C 4
Frequency in Hertz
1000 10000
Cutoff frequency = C 3;
resonance = -3 dB;
gain from -18 to 18 dB
100000
100000