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Advanced KDFX
Using the Algorithms
Cabinet HP and Cabinet LP are highpass and lowpass Þlters to set the frequency response
limits of the cabinets. Range of both Þlters is 16 to 25088 Hz.
Polydistort
This is a more complex distortion algorithm that provides two, four, or six stages of distortion.
Curve n controls the curvature of the individual distortion stages. 0% is no curvature (no
distortion at all). At 100%, the curve bends over smoothly and becomes perfectly ßat right
before it goes into clipping. Maximum value is 127%.
LP n Freq are shelving frequencies for one-pole lowpass Þlters on each of the distortion stages.
LP0ÊFreq handles the initial low pass prior to the Þrst distortion stage. The other low pass
controls follow their respective distortion stages. Range is 16 to 25088 Hz.
Rotating Speakers
An algorithm that includes Rotating Speakers breaks the signal into two frequency bands,
ÒrotatesÓ each band separately through a virtual speaker, and then combines the outputs with a
pair of virtual ÒmicrophonesÓ whose angle relative to the speakers is adjustable.
Xover (Crossover) is the frequency at which high and low frequency bands are split and sent to
separate rotating drivers. The range is 16 to 25088 Hz.
Lo Gain and Hi Gain are the gains of the signal passing through the rotating woofer or tweeter,
respectively. The range is Off/-79.0 to 24.0 dB.
Lo Rate and Hi Rate are the rotation rates of the rotating woofer and tweeter. Each driver
woofer can rotate clockwise or counter-clockwise, which is determined by the sign of this
parameter: assuming the microphones are positioned in front of the driver and the microphones
are panned positively (positive numbers go to the right), then a positive value for this parameter
causes the driver to spin clockwise when viewed from the top. The range is -10.00 to 10.00 Hz.
Lo Size and Hi Size are the effective sizes (radius of rotation) of the rotating speakers in
millimeters. This affects the amount of Doppler shift or vibrato of the low frequency signal. The
range is 0 to 250 mm.
Lo Trem and Hi Trem control the depth of tremolo (amplitude modulation) of the signals. It is
expressed as a percentage of full scale tremolo. The range is 0 to 100%.
Mic Angle is the angle of the virtual microphones in degrees from the ÒfrontÓ of the rotating
speaker. For the left microphone the angle increases clockwise (when viewed from the top),
while for the right microphone the angle increases counter-clockwise. You should not assign an
FXMod to this parameter because adjustments to it will result in large sample skips, which will
cause clicks in the signal passing through. The range is 0 to 360.0 degrees.
LoResonate and HiResonate are simulations of cabinet resonant modes express as a percentage.
For realism, you should use very low settings. The range is 0 to 100%.
Lo Res Dly and Hi Res Delay are the number of samples of delay in each resonator circuit in
addition to the rotation excursion delay. The range is 10 to 2550 samples.
LoResXcurs and HiResXcurs are the number of samples of delay to sweep through the
resonator at the rotation rate of each rotating speaker. The range is 0 to 510 samples.
ResH/LPhs sets the relative phases of the high and low resonators. The angle value in degrees is
somewhat arbitrary and you can expect the effect of this parameter to be rather subtle. The
range is 0 to 360.0 degrees.
15-45
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