
18.8. EQ FOUR 249
cutting the signal at the crossover frequency. The higher setting results in more drastic
ltering, but needs more CPU.
Note: The lters in this device are optimized to sound more like a good, powerful analog
lter cascade than a clean digital lter. The 48 dB Mode especially does not provide a
perfect linear transfer quality, resulting in a slight coloration of the input signal even if all
controls are set to 0.00 dB. This is typical behavior for this kind of lter, and is part of EQ
Three's unique sound. If you need a more linear behavior choose 24 dB Mode or use the
EQ Four.
18.8 EQ Four
The EQ Four Effect.
The EQ Four effect is an equalizer composed of four parametric lters. Equalizers are useful
for changing a sound's timbre.
Filter One can switch among three responses: bell-curve (boosts or cuts over a range
of frequencies), low-shelf (boosts or cuts frequencies lower than the specied frequency)
or low-cut (cuts frequencies below the specied frequency). Filters Two and Three are
always bell-curves. Filter Four can switch among bell-curve, high-shelf (boosts or cuts
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