Reverb Decay (Configs 1, 2, 5, 6, 7); Reverb Diffusion Amount (Configs 1, 2, 5, 6, 7) - Alesis GT Reference Manual

by the predelay parameter.
When set to 00, the predelayed and non-predelayed signals are mixed
equally into the reverb.
Larger numbers with the arrow pointing toward POST indicate that
more of the predelayed signal will be selected. When set to 99® only the
predelayed signal will feed the reverb.
Larger numbers with the arrow pointing toward PRE select more of the
non-predelayed signal. When set to ¬99 only the non-predelayed signal
will feed the reverb.

Reverb Decay (configs 1, 2, 5, 6, 7)

The display shows:
This determines how long it takes for the reverb to fade out, on a scale of
00 (shorter) to 99 (longer).

Reverb Diffusion Amount (configs 1, 2, 5, 6, 7)

The display shows:
Diffusion determines the ÒthicknessÓ of the reverb sound by altering the
time that occurs between reverberant reflections. With lower diffusion
settings, you may be able to actually hear the individual echoes that
make up the overall reverb sound. With higher diffusion settings, the
echoes increase in number and blend together. Greater diffusion works
better with percussive sounds, whereas less amounts of diffusion work
well with vocals and other sustained sounds. This parameter is variable
from 1 to 9.
REVERB DECAY:
4 0
REVERB DIFFUSION
AMOUNT: 1
40