Kurzweil K2661, Musician’S Reference Manual

Page: 107 / 500

KDFX Reference
KDFX Algorithm Specifications
10-25
Page 3
Wet/Dry Wet/Dry sets the relative amount of wet signal and dry signal. The wet signal
consistts of the reverb itself (stereo) and the delayed mono signal arriving after
the reverb has ended (simulating the dry source in the reverse reverb sequence).
The amount of the delayed signal mixed to the Wet signal is separately
adjustable with the Dly Lvl control. The Dry signal is the stereo input signal.
Out Gain This controls the level of the output mix, wet and dry, sent back into the K2661.
Fdbk Lvl This controls the feedback gain of the separate, (mono) delay tap. A high value
contributes a long repeating echo character to the reverb sound.
HF Damping HF Damping adjusts a low pass fi lter in the late delay tap feedback path so that
high frequencies die away more quickly than mid and low frequencies.
Dly Lvl This adjusts the level of the separate, (mono) delay tap used to simulate the dry
source of a reverse reverb effect. This same tap is used for feedback.
Dly Length Sets the length (in milliseconds), of the separate, (mono) delay tap used to
simulate the dry source of a reverse reverb effect. This same tap is used for
feedback.
Rvb Env The Rvb Env control selects 27 cases of envelope gains for the taps. Nine cases
emulate a normal forward evolving reverb, another nine emulate a reverb
building symmetrically to a peak at the mid point, while the last nine cases
emulate a reverse building reverb. For each major shape, there are three
variants of one, two, and three repetitions and three variants of envelope
sharpness.
Rvb Length Sets the length (in milliseconds), from start to fi nish, of the reverberation
process. This parameter is essentially the decay time or RT60 for the Rvb Env
cases ..R1.. where there is only one repetition.
Bass Early, Mid, and Late. These bass controls shape the frequency response (boost
or cut) of the three periods of the
fi nite reverb sequence. Use them to tailor the
way the reverb bass content changes with time.
Damp Early, Mid, and Late. These treble controls shape the frequency response (cut
only) of the three periods of the
fi nite reverb sequence. Use them to tailor the
way the reverb treble content changes with time.
Early Bass -15 to 15 dB Early Damp 16 to 25088 Hz
Mid Bass -15 to 15 dB Mid Damp 16 to 25088 Hz
Late Bass -15 to 15 dB Late Damp 16 to 25088 Hz