Parameters For Polydistort + Eq - Kurzweil K2600 Musician’s Reference

PolyDistort is an unusual distortion algorithm which provides a great number of parameters to build a
distortion sound from the ground up. The eight distortion stages each add a small amount of distortion to
your sound. Taken together, you can get a very harsh heavy metal sound. Between each distortion stage is
a low pass Þlter. The low pass Þlters work with the distortion stages to help mellow out the sound.
Without any low pass Þlters the distortion will get very harsh and raspy.
Stages of distortion can be removed by setting the Curve parameter to 0. You can then do a 6, 4, or 2 stage
distortion algorithm. The corresponding low passes should be turned off if there is no distortion in a
section. More than 4 stages seem necessary for lead guitar sounds. For a cleaner sound, you may want to
limit yourself to only 4 stages.
Once you have set up a distorted sound you are satisÞed with, the Dist Drive parameter controls the input
gain to the distortion, providing a single parameter for controlling distortion amount. You will probably
Þnd that you will have to cut back on the output gain as you drive the distortion louder.
Post distortion EQ is deÞnitely needed for make things sound right. This should be something like a guitar
speaker cabinet simulator, although not exactly, since we are already doing a lot of low pass Þltering inside
the distortion itself. Possible EQ settings you can try are Treble -20 dB at 5 Khz, Bass -6 dB at 100 Hz, Mid1,
wide, +6 dB at 2 kHz, Mid2, wide, +3 dB at 200 Hz, but of course you should certainly experiment to get
your sound. The Treble is helping to remove raspiness, the Bass is removing the extreme low end like an
open-back guitar cabinet (not that guitar speaker have that much low end anyway), Mid1 adds enough
highs so that things can sound bright even in the presence of all the HF roll-off, and Mid2 adds some
warmth. Your favorite settings will probably be different. Boosting the Treble may not be a good idea.
Pre distortion EQ, available on the Studio INPUT page, is also useful for shaping the sound. EQ done in
front of the distortion will not be heard as simple EQ, because the distortion section makes an adjustment
in one frequency range felt over a much wider range due to action of the distortion. Simple post EQ is a bit
too obvious for the ear, and it can get tired of it after a while.

Parameters for PolyDistort + EQ

Parameters
Page 1
Wet/Dry 0 to 100%wet
Dist Drive Off, -79.0 to 48.0 dB
Page 2
Curve 1 0 to 127%
Curve 2 0 to 127%
Curve 3 0 to 127%
Curve 4 0 to 127%
Page 3
LP0 Freq 16 to 25088 Hz
LP1 Freq 16 to 25088 Hz
LP2 Freq 16 to 25088 Hz
LP3 Freq 16 to 25088 Hz
LP4 Freq 16 to 25088 Hz
Out Gain Off, -79.0 to 24.0 dB
Curve 5 0 to 127%
Curve 6 0 to 127%
Curve 7 0 to 127%
Curve 8 0 to 127%
LP5 Freq 16 to 25088 Hz
LP6 Freq 16 to 25088 Hz
LP7 Freq 16 to 25088 Hz
LP8 Freq 16 to 25088 Hz
KDFX Reference
KDFX Algorithm Specifications
10-95