KORG PANDORA PX4 User Manual
Precautions
Location
Using the unit in the following locations can result in a malfunction.
• In direct sunlight
•
Locations of extreme temperature or humidity
• Excessively dusty or dirty locations
• Locations of excessive vibration
• Close to magnetic fields
Power supply
Please connect the designated AC adaptor to
an AC outlet of the correct voltage.
Do not connect it to an AC outlet of voltage
other than that for which your unit is intended.
Interference with other electrical devices
This product contains a microcomputer. Radios and televisions placed nearby may experi-
2
ence reception interference. Operate this unit
at a suitable distance from radios and televisions.
Handling
T o av oid breakage, do not apply excessiv e force
to the switches or controls.
Care
If the exterior becomes dirty, wipe it with a clean,
dry cloth. Do not use liquid cleaners such as
benzene or thinner, or cleaning compounds or
flammable polishes.
Keep this manual
After reading this manual, please keep it for
later reference.
Keeping foreign matter out of your
equipment
Never set any container with liquid in it near
this equipment. If liquid gets into the equipment,
it could cause a breakdown, fire, or electrical
shock.
Be careful not to let metal objects get into the
equipment. If something does slip into the
equipment, unplug the AC adaptor from the wall
outlet. Then contact your nearest Korg dealer
or the store where the equipment was purchased.
CE mark for European Harmonized Standards
CE mark which is attached to our company’s products
of AC mains operated apparatus until December 31,
1996 means it conforms to EMC Directive (89/336/
EEC) and CE mark Directive (93/68/EEC). And, CE
mark which is attached after January 1, 1997 means it
conforms to EMC Directive (89/336/EEC), CE mark Directive (93/68/EEC) and Low Voltage Directive (73/23/
EEC).
Also, CE mark which is attached to our company’s products of Battery operated apparatus means it conforms
to EMC Directive (89/336/EEC) and CE mark Directive (93/68/EEC).
THE FCC REGULATION WARNING (for U.S.A)
This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio
communications. However, there is no guarantee that
interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be determined
by turning the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and
receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Unauthorized changes or modification to this system
can void the user’s authority to operate this equipment.
3
Contents
Introduction-------------------------- 6
Main features ----------------------- 6
Turning on the power ------------- 8
Battery Low display --------------------- 8
Controls and connectors ---------- 8
LCD screen------------------------------- 10
Making connections ------------- 11
Initial Settings --------------------- 12
Quick Edit ------------------------------- 12
Play mode ------------------------- 13
1.Selecting a program---------------- 13
2.Master level -------------------------- 13
3.Bypass/Mute ------------------------- 13
4.Tuner ----------------------------------- 14
4
5.Specifying the
function of the Value Dial--------- 15
6.Key Lock function ------------------- 16
Rhythm & Bass mode ----------- 16
1.Rhythm Pattern ---------------------- 17
2.Tempo ---------------------------------- 17
3.Bass On/Off & Bass Key ---------- 17
4. Rhythm & Bass Reverb Level ---- 18
Chain Pattern settings ---------------- 18
Phrase Trainer mode ------------ 19
1.Select the recording mode -------- 19
2.Recording ----------------------------- 20
3.Playback ------------------------------ 21
4.Pause ---------------------------------- 21
AUX Pitch mode ------------------ 22
Edit mode -------------------------- 22
1.Select the effect
that you wish to edit --------------- 23
2.Editing each effect ------------------ 23
1) DYNA (Dynamics &
Pick up Modeling)--------------- 23
2) AMP (Amp Modeling) --------- 23
3) CAB (Cabinet Modeling) ----- 24
4) MOD (Modulation &
Filter Effect Modeling) --------- 24
5) DLY (Delay Modeling) --------- 24
6) REV (Reverb Modeling)------- 25
7) NR (noise reduction)----------- 25
8) RENAME ------------------------- 25
9) TX (Infrared transmitter) ------ 26
10) WRITE --------------------------- 26
3.Reloading the factory programs 27
Troubleshooting------------------- 27
Effect Parameter ------------------ 29
DYNA (Dynamics
& Pickup modeling)---------------- 29
AMP (AMP Modeling) ---------------- 31
CAB (Cabinet modeling) ------------- 34
MOD (Modulation &
Filter Effect Modeling) ------------ 35
About the Intelligent
Pitch Shifter ------------------ 37
DLY (Delay Modeling)----------------- 38
REV (Reverb Modeling) -------------- 38
Preset Program Name ---------- 39
Rhythm Pattern List -------------- 40
Specifications---------------------- 41
5
Introduction
Thank you for purchasing the TONEWORKS
P ANDORA PX4 personal multi-effect pr ocessor. In order to enjoy your PANDORA PX4,
please read this owner’s manual carefully and
retain it for future reference.
Main features
The PX4 is a highly versatile multi-effect de vice
in a compact package. It makes it easy to use
Korg's proprietary " " modeling technology to create detailed and powerful modeling
sounds.
124 types of effect variations
A maximum of seven effects can be used simultaneously.
IPE (Integrated Parameter Edit) system
Easy to adjust effect settings.
50 user and 50 preset programs
6
Amp modeling selector and control knobs
Of the 15 different varieties, 11 types of amp
models can be edited quickly and easily.
Infrared transmitter built-in
Infrared wireless headphones can be used for
remote wireless monitoring.
Backlit LCD
The LCD screen can be easily viewed even in
dark locations.
Auto Tuner function
This feature makes tuning fast and easy. You
can also tune without being heard (i.e., while
muted).
Rhythm and bass function
39 types of rhythm and bass patterns or a metronome can be sounded. Multiple patterns can
also be connected for successive playback.
AUX pitch function
You can transpose the pitch of the sound from
a CD player or other audio source connected to
the AUX jack.
Phrase Trainer function
Sound from a CD player or guitar can be recorded (maximum of 30 seconds), and played
back as a loop. The playback speed can then
be slowed down without affecting the pitch of
the sound. The rhythm selected in Rhythm &
Bass mode and the effect output can also be
recorded simultaneously.
TAP button
You can easily set the Delay Time or the tempo
of the Rhythm & Bass function to match the tempo of the song.
Value dial
This lets you rapidly select programs or edit the
effects.
What is
circuit Modeling System) is K ORG’s proprietary sound modeling technology which
precisely reproduces the complex character and nature of both acoustic and electric
instruments as well as electronic circuits in
real world environments.
a wide variety of sound generation characteristics including instrument bodies, speakers & cabinets, acoustic fields, microphones, vacuum tubes, transistors, etc.
?
(Resonant structure and Electronic
emulates
7
Turning on the power
Remove the battery cover located on the bottom
of the PX4 by sliding it in the direction of the arrow. Inser t four AAA alkaline batteries as
shown in the illustration.
Be sure to insert the batteries observing the correct polarity.
Battery Low display
When the battery begins to run down, the Low
Battery icon
place the batteries as soon as possible.
Programs and other data (except for the data
being edited) will not be lost even if the battery is
removed and changed.
8
will light. When this icon lights, re-
Batteries that have run down must be removed
from the PX4. If you lea v e dead batteries in the
unit, malfunctions (battery leakage, etc.) may
occur. You should also remove the batteries
when you do not expect to use the PX4 for an
extended period of time.
An AC adapter is not included with this product. It must be purchased separately.
Controls and connectors
1 Control knobs
These knobs control the gain, tone, and volume of the amp modeling.
2 Liquid Crystal Display (LCD)
3 TUNE/BYPASS button
4 EXIT button
This button returns you back to Play mode from
any mode.
5 ENTER/REC button
This button is used to switch an effect on/off,
or to start recording in Phrase Trainer mode.
6 Input level switch
Use this to adjust the input level (appropriate
for the output level of your guitar).
7 Amp Modeling selector
Select the type of amp modeling.
8 ▲/▼ buttons
Use these buttons to select programs and edit
effects,
9 OUTPUT jack
Connect this jack to your guitar amp or headphones etc.
0 INPUT jack
Connect your guitar to this jack.
A AUX jack (stereo)
Connect this jack to a CD player or other audio source.
B DC4.5V
The separately sold AC adapter (DC4.5V
) should be connected here.
C √/® buttons
Use these buttons to select the parameter that
you wish to edit, and to operate the Phrase
Trainer function.
D Power switch/Backlight switch
This switch turns the power on/off, and also
turns the backlight on/off.
If you are operating the PX4 on batteries, the
operating time will be shorter if you turn on the
infrared transmitter or backlight.
E Value dial
Use this to adjust master level, edit effects,
and select programs.
F TAP button
You can set the Delay Time by pressing this
button twice at the desired tempo of delay. In
Rhythm & Bass mode, you can set the tempo
of the rhythm in the same way.
G Mode buttons
Use these buttons to enter Rhythm & Bass,
Phrase Trainer, or AUX Pitch modes.
9
LCD screen
1 Effect chain
This area indicates the on/off status of the
DYNA, AMP, CAB, MOD, DLY, and REV effects
2 Program name/Effect type display
This area shows the program name or effect
type. When the PX4 is bypassed or muted, this
will function as the tuner.
3 Low Battery icon
This icon will light when the batteries run down.
4 Mode icons
These icons will light when you are in AUX
Pitch, Phrase Trainer, or Rhythm & Bass
modes.
10
5 Infrared transmitter icon
This icon will light when the infrared transmitter is on.
6 Edit/Original icons
The EDIT icon will light when you enter Edit
mode. If the parameter or value being edited
matches the value that is written in the program, the ORIG icon will light.
7 Program number / value display
This displays the program number.
When you change the Master Level, its value
will be displayed here for several seconds.
During editing, this displays the parameter
values.
8 Master/Value icons, bar graph
When MASTER is lit, the master level of the
program is indicated graphically. When VAL-
UE is lit, the value of the parameter is indicated graphically.
Making connections
When connecting an external device (ie-guitar
amp, stereo, ac adapter, etc)be sure to turn the
unit off.
mini-component /
stereo etc.
guitar amp /
powered monitor
headphone
*6
*1 *1
AC adapter
*2
*1
*5
*4
*4
guitar
CD player etc.*3
*1 Do not block the transmission window when
using the infrared transmitter function.
*2 Be sure to use only the specified AC adapter
(DC4.5V
).
*3 If a CD player or other audio source is con-
nected to AUX jack, you can play along on
your guitar with a tape, etc. However the volume must be adjusted on the connected de-
vice.
*4 Connecting cables are sold separately.
*5 PX4’s output jack is stereo. If you use a stan-
dard mono cable to connect it to a guitar amp
etc., only the L (left) output will be heard.
*6 PX4’s output level and sound quality will vary
depending on which headphones are used.
We recommend using good quality low imped-
ance headphones, 32 Ohms or less with a
sensitivity rating near 100dB/mW or above.
Many headphones sold for use with portable
CD or cassette players will work just fine.
11
Initial Settings
1. When you finish making connections, set the
power switch in the “ON” position. (This set-
ting is referred to as Play mode.)
Use the ▲/▼ buttons to select a program.
2. Set the input level switch to a position appropriate for the output level of your guitar.
Hi: Guitars with a high output level
(humbucking pickups)
Lo: Guitars with a low output level
(single coil pickups)
3. Set the volume control of the guitar to its usual
position.Use the Value dial to adjust the master level.
If you want to use the infrared transmitter function, refer to p.26 of Edit mode, "9) TX (infrared
transmitter)."
Quick Edit
In each mode (except when Mute/Bypass or Key
Lock are active), you can use the Amp Model-
ing selector to quickly change the amp model-
12
ing type, or use the control knobs to adjust the
gain, tone, or volume of amp modeling. When y ou
move a control knob, the parameter name and
value will appear for several seconds in the value display. If the setting matches the original setting, the ORIG icon will light.
The Delay Time of Delay Modeling can also be
set by pressing the TAP button twice at the de-
sired interval (except when in Rhythm & Bass
mode). To check the Delay Time that was specified, press and hold the TAP b utton for two seconds or longer.
Amp gain, tone,
and volume
Program name
Input level
switch
Amp selection
Program
number
Set the
delay time
Master level
adjustment
Program selection
Settings that you make using Quick Edit will return to the original settings of the program if you
change programs or turn off the power before
Writing (see p.26).
seconds. The master level is remembered even
when the power is turned off.
Master icon
Play mode
Play mode is the mode in which you will normally
use the PX4.
1.Selecting a program
You can choose from 50 user programs
(U01...U50) and 50 preset programs (P01...P50).
Use the ▲/▼ buttons to select a program. Programs can be selected even when you are in
Rhythm & Bass mode, AUX Pitch mode, or
Phrase Trainer mode (except while recording).
2.Master level
When the MASTER icon is lit, the value graph
will indicate the master level.
When you turn the Value dial to adjust the master level, the master level value will be shown in
the program number / value display for several
Value graph
Program number display
You can also adjust the settings so that the ▲ /▼
buttons will adjust the master level. (See p.15)
Master level value
3.Bypass/Mute
When you press the TUNE/BYP ASS b utton, the
PX4 will be bypassed, and the original sound will
not be processed by any effect.
The effect chain will blink, and the display will
indicate “BYPASS” for approximately one second.
If you press and hold the TUNE/BYP ASS b utton
for longer than one second, the output signal will
be muted.
The effect chain will blink rapidly, and the display
will indicate “MUTE” for approximately one second.
13
Bypass/mute will be turned off when you press
the TUNE/BYPASS button once again.
You can also return to Play mode by pressing the
EXIT button.
Bypass or Mute can also be entered from modes
other than Play mode.
4.Tuner
The tuner will operate when you bypass or mute.
meter
sharp
note name
calibration
center mark
Play a single string on your guitar. The LCD will
show the note name and the calibration. If the
pitch is more than a semitone higher than the
note name, a sharp symbol will appear at the
upper right of the note name.
14
The display area will act as a meter to show the
pitch.
T une the string of your guitar so that the indicator
above the center mark is lit.
The tuner (bypass/mute) will be turned off when
you press either the TUNE/BYPASS button.
Y ou can also return to Pla y mode by pressing the
EXIT button.
Calibration
(frequency of the standard A = 440 pitch)
You can use the Value dial to adjust calibration
in the range of A = 438 Hz...445 Hz.
The calibration setting you make will be valid until
the power is turned off. Once the po wer is turned
off, calibration will be reset to A = 440 Hz.
5.Specifying the function of the Value Dial
Select a program
Adjust the master level
You can specify the function that the Value dial
will perform in Play mode. In Play mode, hold
down the EXIT button and press either the √
button or the ® button to assign the following
functions.
● Hold down the EXIT button and press the √
button.
The LCD will indicate “MASTER” f or approximately one second.
The Value dial will
and the ▲/▼ buttons will
You can use the Value dial to adjust the master level quickly. Each time the power is turned
on, this setting will be in effect.
adjust the master level,
select programs.
Adjust the
master level
Select a program
● Hold down the EXIT button and press the ®
button.
The LCD will indicate “PROGRAM” for approximately one second.
The Value dial will
▲/▼ buttons will
select programs, and the
adjust the master level.
You can use the Value dial to select programs
quickly.
If you want to change the function of the V al-
ue dial so that it will
adjust the master level,
hold down the EXIT button once again and
press the √ button, or turn on the power
once again.
15
6.Key Lock function
By activating the Key Lock function, you can
disable all operations except for selecting programs. This is a convenient way to prevent
accidental operation during a live performance.
Hold down the EXIT button and press the
TUNE/BYP ASS button. The LCD will indicate
“KEYLOCK” for approximately one second.
The ▲/▼ buttons will select programs , and oth-
er buttons and the Value dial will not function.
Only program selection is possible
The Key Lock function will be cancelled when
the power is turned off. You can also cancel
the Key Lock function by performing "5. Value Dial function setting."(p.15).
16
Rhythm & Bass mode
To enter Rhythm & Bass mode, press the
RHYTHM button once when in Play mode (except for mute/bypass or key lock), AUX Pitch
mode, or Phrase Trainer mode.
When you enter this mode, the Rhythm Pattern
selection screen will appear, the selected rhythm
will start, and the Rhythm & Bass mode icon
will light. The indication of the value graph will
change according to the pattern or tempo.
This mode contains the following four parameters. Use √/® to select parameters, and use
the Value dial and the ENTER/REC button to
set the value of each parameter.
If you select "CHAIN" as the rhythm pattern, there
will be more chain pattern settings. (Refer to p .18,
"Chain pattern settings")
Rhythm
tempo display
pattern
Additional settings when
rhythm pattern is "
If you select "JAM" as the recording mode in
Phrase Trainer mode, the rhythm will sound with
the pattern and tempo that you specify here.
The settings you select here are remembered
even when the power is turned off.
Tempo
Chain pattern
setting
CHAIN
Bass On/Off
and Bass Key
Rhythm & Bass
reverb level
"
1.Rhythm Pattern
Use the Value dial to select the rhythm pattern
(p.40)
Rhythm Pattern
Rhythm & Bass mode icon
2.Tempo
Set the tempo in the range of 40–208 bpm.
You can also set the tempo by pressing the TAP
button twice at the desired rhythm.
For a 6/8 time signature, the tempo can be set in
a range of =40–208.
3.Bass On/Off & Bass Key
Here you can switch the bass on/off, and specify
the key in which the bass will play.
If you press the ENTER/REC button in this
screen, the bass will play in time with the rhythm.
Depending on the rhythm pattern that you have
selected, some bass lines will include a chord
progression.
When the bass note is on, you can use the Value
dial to set the key in a range of C, C...A, B, al-
lowing you to practice your guitar in a scale that
matches that key.
17
key display
If “METRONM” (metronome) is selected as the
rhythm pattern, there will be no bass notes, and
this screen will not appear.
When using Chain Patterns, the Bass Key setting will be ignored.
4. Rhythm & Bass Reverb Level
Use the Value dial to set the amount of Rhythm &
Bass sound that will be sent to reverb modeling.
Reverb level
The same effect as for the guitar is used for reverb. This parameter has no effect if you have
selected a program that does not use reverb
modeling, or if the reverb effect level is "0."
18
Chain Pattern settings
These parameters are added only if you select
"CHAIN" as the rhythm pattern. Press the EN-
TER/REC button to access the Chain Parameter Select screen. Use the √/® buttons to select the location (1...8) for which you want to
change the pattern, and use the Value dial to
select the pattern (p.40) that will be used at that
location. Use the ▲/▼ buttons to specify the bass
key of the selected pattern.
Pattern location
Up to 8 patterns can be connected. If you want to
create a chain of 7 or fewer patterns, select "PTN
END" for the last pattern.
Press the ENTER/REC button to exit the Chain
Pattern Select screen.
Key
Phrase Trainer mode
An audio source from the AUX jack or a phrase
you play on your guitar can be recorded, and
played back repeatedly as a loop.
This provides a convenient way to practice by
playing along with the repeating phrase.
You can slow down the playback speed without
affecting the pitch, which can help you to learn
difficult phrases.
If you select "JAM" as the recording mode, the
rhythm you specified in Rhythm & Bass mode
will be recorded simultaneously with the guitar
input, and looped.
1.Select the recording mode
In Play mode (except during bypass/mute or key
lock), Rhythm & Bass mode, or A UX Pitch mode ,
press the PHRASE TRAINER button to enter
Phrase Trainer mode.
When you enter this mode, the recording mode
and time select screen will appear, and the
Phrase Trainer icon will blink. In this screen, the
PX4 will be ready to record.
Recording
mode
Phrase Trainer icon
The recording mode will cycle through the following choices each time you press the PHRASE
TRAINER button.
AUX Records only the AUX input
GUITAR Records only the guitar sound
AUX+GTR Records both the AUX input and
JAM Records the guitar together with
Use the value dial to select the recording time
(for "JAM," the number of measures).
8 Approximately 7.9 seconds
16 Approximately 15.8 seconds
32 Approximately 31.7 seconds
1, 2, 4, 8 Number of measures
guitar
the rhythm that was last selected
in Rhythm & Bass mode
Recording
time
19
If the recording mode is "JAM," the recording
Recording
time display
quality will be set automatically , based on the tempo and the specified number of measures.
If you select a long recording time (16 or 32),
the audio quality of the recording will be lower.
If the tempo of the rhythm is extremely slow, it
will not be possible to record a large number of
measures. Please re-specify the tempo in
Rhythm & Bass mode (maximum length is approximately 31.7 seconds)
Start playback on your CD or other audio source,
and at the point where you wish to begin recording, press the ENTER/REC button. Recording
will begin.
If the recording mode is "JAM," recording will
begin after two measures of playback.
If, after recording, you want to change the recording mode or recording time, press the
PHRASE TRAINER button while playback is
paused.
The recorded content will be lost when the power
is turned off.
20
2.Recording
When you begin recording, the recording time will
be indicated as a numerical value and by a value
graph.
When you want to stop recording, press the EN-
TER/REC button or the [
stop, and loop playback will begin automatically.
If you do not stop recording, recording will continue until the selected recording time has
elapsed, and loop playback will begin automatically.
If the recording mode is "JAM," recording will end
automatically at the specified number of measures, and will switch to loop playback.
The phrase will be recorded and played back in
mono.
]. Recording will
3.Playback
The recording phrase will playback as a loop.
During playback or while paused, you can use
the ▲/▼ buttons to select programs.
playback
time display
playback speed(%)
Rotating the Value dial toward the left will slow
down the playback speed without affecting the
pitch.
Y ou can choose from six le vels of playbac k speed:
100%, 90%, 80%, 75%, 66%, and 50%.
During playback, you can press the [ ] button
to rewind.
By pressing the PHRASE TRAINER button, you
can hold the sound that was being played at the
moment you pressed the button (the Hold function). This is convenient when you need to hear
individual notes in a phrase.
4.Pause
When you press the [ ] button, the playback
will pause. Press the [
and playback will resume.
Pressing the [
paused will return you to the beginning of the
recorded phrase.
If you wish to re-record
To re-record the phrase, press the [
to pause the playback.
Start the CD or other audio source, and press
the ENTER/REC button at the beginning of the
desired phrase.
If you want to change the recording mode or time,
press the PHRASE TRAINER button while
paused.
] button once again,
] button while playback is
] button
21
AUX Pitch mode
In this mode you can transpose the pitch of a CD
or other audio source connected to the AUX jack.
Press the AUX PITCH button to enter AUX Pitch
mode. When y ou are in this mode, the A UX Pitc h
icon will light.
Use the Value dial to specify the amount of key
transposition. The key can be transposed in a
range of +/-1 octave.
The value can be adjusted upward and downward for 3 semitones in 10 cent steps, and in
semitone steps (100 cents) for the remainder of
the range.
Display of
10 cent units
Display of
AUX Pitch icon
The output will be mono in AUX Pitch mode.
The AUX Pitch setting is remembered even
when the power is turned off.
22
100 cent units
Edit mode
In this mode you can turn each effect on/off, and
edit the effect type, parameter values, and program name.
In Play mode, press the √ (or ®) button to access the DYNA effect edit screen, entering Edit
mode.
In any screen of Edit mode, you can use the con-
trol knobs to edit Amp modeling, or use the TAP
button to set the delay time of Delay modeling.
Press the EXIT button to return
to Play mode.
If a program was not written after it was edited, the decimal
point of the program number will
light.
The edited settings will return to the settings of
the original program if you switch programs or
turn off the power without Writing (see p.26).
Before
writing
After
writing
1.Select the effect that you wish to edit
Each time you press an √/® buttons, you will
cycle through the effects in the order shown below. When an effect is selected, its icon will b link.
1) DYNA (Dynamics & Pick up Modeling)
These are dynamics-type effects such as compressor and auto-wah that modify the tone, and
pickup modeling effects.
2.Editing each effect
For each effect, you can select the effect type
and set its parameter values.
Effects that are turned "OFF" will automatically
be turned on if you press the ENTER/REC but-
ton or use the ▲/▼ buttons to select the effect
type.
For details on the effect types and parameters,
refer to Effect Parameters (p.29). Renaming the
program, infrared transmitter settings, and writing the program are also performed here.
On,
Off
Parameter
value
Type selection
2) AMP (Amp Modeling)
This models a guitar amp (15 different types).
Amount of distortion*
High range* Low range*
On,
Off
*Operation will be different if SYNTH is
selected as the type.
Volume*
Mid range*
Type selection
23
The amp type selected by the amp modeling selector can be selected and edited even without
entering Edit mode.
The VOLUME control knob can be used to adjust the VOLUME even when the amp modeling
effect is "OFF."
3) CAB (Cabinet Modeling)
This simulates the acoustical characteristics of
the guitar amp’s cabinet.
This is especially effective when you are not using an amp (e.g., when using headphones, or
when connecting to a mixer, hard-disk recorder,
or audio device).
On,
Off
Type selection
24
Presence
4) MOD
(Modulation & Filter Effect Modeling)
These are modulation and filter-type effects such
as chorus, flanger, phaser, and pitch shifter.
On,
Off
Parameter
value
Type selection
5) DLY (Delay Modeling)
These are spatial-type effects for which you can
set the delay time by the interval at which you
press the TAP b utton.
Delay
On,
Off
time
Effect
level
Type selection
6) REV (Reverb Modeling)
These are spatial-type effects that add spaciousness to the sound.
On,
Off
Effect
level
Type selection
7) NR (noise reduction)
Use the Value dial to adjust the depth of the noise
reduction that is applied.
Adjust the
depth of noise
reduction
Increasing this value will produce more noise reduction. Normally you will adjust this so that you
do not hear obtrusive noise when the strings are
lightly muted.
If the NR value is raised excessively, the sound
may be cut off prematurely, depending on the
device that is connected. If this occurs, reduce
the value.
Adjust the NR level as suitable f or y our guitar or
pickup.
8) RENAME
Here you can specify a name for each program.
The following characters can be used: space, 0–
9, A–Z, “, ‘, ❋, +, -, /.
Select the
character
Select the
character
location
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9) TX (Infrared transmitter)
Use the ENTER/REC button to turn the infrared
transmitter on/off.
On,
Off
Infrared transmitter icon
The infrared transmitter setting is common to all
programs, and is remembered even when the
power is turned off.
Use the infrared transmitter within a visually unobstructed range of 4 meters or less.
If the infrared transmitter is left on, the battery
life will be shorter. If y ou are not using the infr ared transmitter, you should turn it off.
10) WRITE
Here you can write (store) a program that you
created.
Use the Value dial to select the writing destina-
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tion (User programs only). When you do so, the
name of the program that currently occupies the
writing destination will be displayed briefly.
If you decide not to write, press the √ (or ®)
button to select a different screen.
When you press the ENTER/REC button, the
edited program will be written into memory.
When the program has been written, the LCD
will indicate “COMPLT” f or approximately one sec-
ond.
Write
Select a user program
number as the writing
Program number that currently
occupies the writing destination
Before writing an edited program into a different program number, be sure that you do not
mind overwriting the data that is currently in that
program number. The program data that is overwritten will be lost.
It is not possible to write to a preset program.
destination
3.Reloading the factory programs
While holding down the RHYTHM button and the
▲ button, turn on the power. The LCD will ask
“RELOAD?”
If you press the ENTER/REC button, the factory-set programs will be re-loaded into the user
program area. The display will indicate “RE-
LOAD”, “VERIFY”, “COMPLT” for a short time,
and then the power-on screen will appear.
Never turn off the power during the reload operation.
If you decide not to reload the factory programs,
press the EXIT button. The factory programs
will not be reloaded; the normal power-on screen
will appear, and the PX4 will be in Play mode.
Be aware that if you reload the factory-set programs, the user programs and any settings that
are remembered when the power is turned off
(master level, infrared transmitter, etc.) will all
be rewritten.
Troubleshooting
If the PX4 does not operate as you expect, please
check the following points first. If this does not
resolve the problem, contact your dealer.
1.Power does not turn on.
• Are batteries installed? Alter natively, is the
correct AC adapter connected to an AC outlet?
2.No sound
• Are your guitar, amp and headphones connected to the correct jacks?
• Is your amp turned on and set correctly?
• Are any cables broken?
• Is the master level of the PX4 set to “0” or to
a low level?
• The VOLUME control knob may have been
turned down.
• Is the PX4 muted?
Be aware that if all effects are off, the chain
display will disappear, and it will not be possible to distinguish Bypass or Mute from the
LCD display.
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• Is the volume of your guitar turned down?
3.When using the infrared transmitter, there
is no sound or the sound is distorted.
• Is the infrared transmitter turned on?
• Are the PX4 and the headphones within a vi-
sually unobstructed range of 4 meters or less?
• The PX4's transmitter may be obstructed.
• Is the power of your infrared wireless head-
phones turned on?
In some cases, the output sound may be distorted because of the settings of the program.
(Adjust the master level and/or program level.)
4.The volume from the device connected to
the AUX jack is too loud or too soft, or cannot be heard.
• Adjust the output level of the connected de-
vice.
Make connections to the headphone jack of
the device, instead of to its line output.
• Are you in Phrase Trainer mode?
Exit Phrase Trainer mode.
28
• Are you using a connection cable with a builtin resistor?
5.Effects do not apply
• Is the PX4 bypassed? (the effect chain will
be blinking)
• Are the effects used in the program turned
on?
6.Tuner does not work.
• Is the PX4 bypassed or muted?
Effect Parameter
DYNA (Dynamics & Pickup modeling)
COMP This compressor produces consistent levels and sustain. Adjusts sensitivity.(1.0...10.0)
DYNAEXC This effect dynamically applies an exciter according to your Adjusts sensitivity.
VOX WAH Models a VOX V847 wah pedal
WAHUP1
WAHUP2 Positive-polarity auto-wah that responds smoothly to attacks (0...10.0)
WAHDWN1
WAHDWN2
SLOWATK Smoothes the attack of a guitar to create a violin-like effect. Specify the attack speed
OCTAVE This generates a pitch one octave lower than the original
RING An effect that produces bell-like sounds. (For the cleanest Specify the frequency
picking strength. (This is especially effective when you want (0...10.0)
to give more sparkle to clean sounds.)
Positive-polarity auto-wah that responds sensitively to attacks
Negative-polarity auto-wah that responds sensitively to attacks
Negative-polarity auto-wah that responds smoothly to attacks
sound, and mixes it with the original sound to add a sense Adjusts effect level.
of depth and low end.This effect may not operate correctly (0...10.0)
if two or more strings are played simultaneously, or when
low-pitched strings are played.
effect, use the neck pickup, turn down the tone control of (1.0...10.0)
your guitar, and play near the 12th fret.)
TYPE (π/† button)
VALUE (Value Dial)
Adjusts location of a peda
Adjusts sensitivity.
(1.0...10.0)
l (1.0...10.0)
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RINGUP A ring modulator in which the effect changes dynamically Adjusts sensitivity.
TYPE (π/† button)
RINGDWN depending on your picking strength. (0...10.0)
AC SIM This is an effect model that converts the sound of an
electric guitar to that of an acoustic guitar.
HUMSGL Pickup modeling that transforms the sound of a humbucking
pickup into the sound of a single-coil pickup.
SGLHUM Pickup modeling that transforms the sound of a single-coil Adjusts tone (0...10.0)
pickup into the sound of a humbucking pickup.
HF TONE Pickup modeling that simulates the "half-tone" position
between two pickups.
PHASOUT Pickup modeling that simulates the "out of phase" sound
when two pickups are connected out of phase.
VALUE (Value Dial)
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