Zoom ACOUSTIC 504 II Operation Manual page 15

WAH
This is an auto wah effect that works on single notes. Higher values
result in stronger auto wah.
PEDAL WAH
Allows using the expression pedal (FP01/FP02) connected to
the CONTROL IN jack to manually adjust the WAH effect. When no
pedal is used, the parameter functions as auto wah.
oF
Sets the EFFECT parameter to OFF.
DELAY&REVERB
Mixes a delayed component and reverb component to the
original sound, producing a feeling of depth and ambience.
LARGE
Simulates the reverberation in a fairly large room. Higher values
result in a deeper reverb effect.
PEDAL LARGE
Allows using the expression pedal (FP01/FP02) connected to
the CONTROL IN jack to adjust the reverb sound mixing balance.
SMALL
Simulates the reverberation in a fairly small room. Higher values
result in a deeper reverb effect.
PEDAL SMALL
Allows using the expression pedal (FP01/FP02) connected to
the CONTROL IN jack to adjust the reverb sound mixing balance.
DELAY
This is a delay effect
with a delay time of
370 mS maximum.
Higher values result in
longer delay time
(longer delay sound
intervals).
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ACOUSTIC
Value Delay time
1 100ms
2 150ms
LEVEL
Original sound 3 180ms
4 215ms
5 230ms
Delay sound
6 250ms
7 280ms
8 340ms
TIME
Delay time
9 370ms
PEDAL DELAY
Allows using the expression pedal (FP01/FP02) connected to
the CONTROL IN jack to adjust the delay sound mixing balance
(delay time will be set to 250 mS).
DELAY+REVERB
This is an effect which combines delay (delay time 210 mS) and
reverb. Higher values result in deeper reverb effect and higher delay
sound mixing ratio.
PEDAL DELAY+REVERB
Allows using the expression pedal (FP01/FP02) connected to
the CONTROL IN jack to adjust the delay sound mixing balance
(reverb depth is fixed).
oF
Sets the DELAY&REVERB parameter to OFF.
De-AMP
This parameter serves for attenuating frequency bands that can
sound harsh when an acoustic guitar is reproduced via a guitar
amplifier. Choose the BRIGHT COMBO, COMBO, or STACK
setting depending on the amplifier that is used, and adjust the
value as required.
BRIGHT COMBO
Designed for use with combo type amplifiers having a bright sound.
Higher values result in stronger attenuation effect.
COMBO
Designed for use with regular combo type amplifiers. Higher values
result in stronger attenuation effect.
STACK
Designed for use with stack type amplifiers. Higher values result in
stronger attenuation effect.
oF
Sets the De-AMP parameter to OFF.
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ZOOM 504 II
ACOUSTIC