Kurzweil K2500 - PERFORMANCE GUIDE REV F PART NUMBER 910251 CHAP 9 Manual page 5

Effects Mode and the Effects Editor
Effects Mode Parameters
FX Mode = Program: In this case, the available values for the FX Channel parameter are
Current, and 1–16. Here, the default value of Current is your most likely choice, since preset
effect selection and realtime control messages will be tied to the current MIDI channel. Set a
value of 1–16 when you want to be able to change programs on the current MIDI channel
without changing the preset effect.
FX Mode = Setup: At this setting, the preset effect is determined by the value for the Effect
parameter on the Setup Editor page, so the FX Channel parameter is irrelevant, and the only
available value is None. Realtime effects are disabled in Setup mode, since there's no way to
determine which program should generate the control source signals assigned to control the
realtime effects.
Dither
When the K2500 internally requantizes digital word lengths, a small amount of unwanted
distortion is produced. Dither converts this distortion into uncorrelated low-level noise, which
results in a better sounding output, since the noise added to the signal is usually inaudible. You
might be able to hear some noise, however, if you are resampling multiple generations of the
K2500's output. For this reason, we recommend that you use Flat dither in a situation where
you are repeatedly resampling. Otherwise, you should probably set dither to Maximum, which
will sound best in most cases (apart from resampling), or leave it at the default of Medium,
which is a convenient compromise between Flat and Maximum.
We don't recommend that you turn dither off, but have provided the None option if you'd like
to try that anyway. Keep in mind, however, that any differences will be just barely audible.
Furthermore, since None is for your experimentation only, the K2500 will change a dither
setting of None to Flat when you restart the unit.
Another Use for Effects Mode
As we mentioned, the main purpose of Effects mode is to tell the K2500 how to select preset
effects when you select programs or setups—but there's another convenient use as well.
Global Preset Effect
If you set the FX Mode to Master, the effects assignments for programs and setups are
overridden. The Effect parameter becomes global. Even when you exit Effects mode and select
programs and setups, the preset effect remains unchanged. This is an easy way to hear a
particular effect applied to several different programs—without editing the programs
themselves. You'll use this when you're playing or recording a multi-timbral sequence and you
want to apply a certain effect to every sound.
Setting the FX Mode to Master tells the K2500 to ignore the preset effects settings at the
program and setup level. If at some later point you go to Program or Setup mode and change
one of the preset effect settings there, the K2500 will assume that the newly selected preset
effect is the one you want to use. The value of FX Mode will automatically revert to Auto, so
that the newly selected effect can be applied to the program or setup you're editing. This
defeats the override, and from that point on, selecting a program or setup will select the preset
effect assigned to that program or setup. If you still want the override to apply, return to Effects
mode and reset the FX Mode parameter to Master.
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