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A 3-band isolator, filter, and low booster are connected in stereo in 
series.

Isolator is an equalizer which cuts the volume greatly, allowing you 
to add a special effect to the sound by cutting the volume in varying 
ranges.

The filters allow you to modify the frequency response of the input 
sound widely and give sound a character.

The low booster emphasizes the bottom to create a heavy bass 
sound.

fig.MFX-04

Overdrive produces a natural-sounding distortion similar to that 
produced by a vacuum tube amplifier. Distortion produces a more 
intense distortion than the overdrive effect.

fig.MFX-05

Low Band Level 
#1

-60– +4 dB

These specify each level of the 
Low, Mid, and High frequency 
ranges.
At -60 dB, the sound becomes in-
audible. 0 dB is equivalent to the 
input level of the sound.

Mid Band Level 
#2
Hi Band Level 
#3
AP Low Sw

OFF, ON

Turns the Anti-Phase function 
on and off for the Low frequency 
ranges.
When turned on, the counter-
channel of stereo sound is in-
verted and added to the signal.

AP Low Level

0–127

Adjusts the level settings for the 
Low frequency ranges.
Adjusting this level for certain 
frequencies allows you to lend 
emphasis to specific parts. (This 
is effective only for stereo 
source.)

AP Mid Sw

OFF, ON

Settings of the Anti-Phase func-
tion for the Middle frequency 
ranges
The parameters are the same as 
for the Low frequency ranges.

AP Mid Level

0–127

Filter Type

THRU, LPF, 
BPF, HPF, 
NOTCH

Type of filter
THRU: no filter is used
LPF: Passes frequencies below 
the Cutoff.
BPF: Passes frequencies near the 
Cutoff.
HPF: Passes frequencies above 
the Cutoff.
NOTCH: Passes frequencies 
other than those near the Cutoff.

L

R

Filter

3-Band
Isolator

Low

Booster

Freq.

Level

LPF

Freq.

Level

HPF

BPF

NOTCH

Freq.

Level

Freq.

Level

Filter Slope

-12, -24 dB/O

Filter’s attenuation slope
-24 dB per octave: steep
-12 dB per octave: gentle

Filter Cutoff

0–127

Cutoff frequency of the filter
The closer to zero it is set, the 
lower the cutoff frequency be-
comes; set it closer to 127, and 
the cutoff frequency becomes 
higher.

Filter Reso-
nance

0–127

Resonance level of the filter
Raising the setting increases res-
onance near the cutoff frequen-
cy, giving the sound a special 
characteristic.

Filter Gain

0– +24 dB

Compensates for the volume 
dropped in the cut frequency 
range with some filters.
The level of compensation in-
creases as the value is increased, 
and raise the volume.

LowBoost Level -15– +15 dB

Increasing this value gives you a 
heavier low end.

Input Mode

MONO, STE-
REO

Selects whether to input in ste-
reo or in monaural.
If MONO is selected, the left and 
right sound will be mixed, and 
input as monaural.

Distortion 
Mode

OD, DS

Selects whether to use overdrive 
(OD) or distortion (DS).

Drive #1

0–127

Degree of distortion

Amp Sim Sw

OFF, ON

Turns the Amp Simulator on/
off.

Amp Type

SMALL, 
BUILT-IN, 2-
STACK, 3-
STACK

Type of guitar amp
SMALL: small amp
BUILT-IN: single-unit type amp
2-STACK: large double stack 
amp
3-STACK: large triple stack amp

Output Level

0–127

Output Level

Ps Low Freq

50–4000 Hz

Frequency of the low range

Ps Low Gain

-15– +15 dB

Gain of the low range

Ps Hi Freq

2000–20000 Hz

Frequency of the high range

Ps Hi Gain

-15– +15 dB

Gain of the high range

L

R

Overdrive/

Distortion

2-Band

EQ

Amp

Simulator