KORG PANDORA PX4B 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 ------------------------- 14
4.Tuner ----------------------------------- 14
5.Specifying the
4
function of the Value Dial--------- 15
6.Key Lock function ------------------- 16
Rhythm mode --------------------- 17
1.Rhythm Pattern ---------------------- 17
2.Tempo ---------------------------------- 18
3.Rhythm Reverb Level --------------- 18
4.Rhythm Level ------------------------- 18
Chain Pattern settings ---------------- 19
Phrase Trainer mode ------------ 19
1.Select the recording mode -------- 19
2.Recording ----------------------------- 21
3.Playback ------------------------------ 21
4.Pause ---------------------------------- 22
AUX Pitch mode ------------------ 22
Edit mode -------------------------- 23
1.Select the effect
that you wish to edit --------------- 24
2.Editing each effect ------------------ 24
1) DYNA (Dynamics &
Preamp Modeling) -------------- 24
2) AMP (Amp Modeling) --------- 24
3) CAB (Cabinet Modeling) ----- 25
4) MOD (Modulation &
Filter Effect Modeling) --------- 25
5) DLY (Delay Effect Modeling)- 25
6) REV
(Reverb Effect Modeling) ----- 26
7) NR (noise reduction)----------- 26
8) TX (Infrared transmitter) ------ 26
9) RENAME ------------------------- 27
10) WRITE --------------------------- 27
3.Reloading the factory programs -
28
Troubleshooting------------------- 28
Effect Parameter ------------------ 30
DYNA (Dynamics &
Preamp modeling) ----------------- 30
AMP (Amp Modeling)----------------- 31
CAB (Cabinet modeling) ------------- 34
MOD (Modulation &
Filter Effect Modeling) ------------ 34
About the
Intelligent Pitch Shifter--------- 37
DLY (Delay Effect Modeling) -------- 38
REV (Reverb Effect Modeling) ------ 38
Preset Program Name ---------- 39
Rhythm Pattern List -------------- 40
Specifications---------------------- 41
5
Introduction
Thank you for purchasing the TONEWORKS
P ANDORA PX4B Bass Personal Multi Effect
Processor. In order to enjoy your PANDORA
PX4B, please read this owner’s manual care-
fully and retain it for future reference.
Main features
The PX4B is a highly versatile multi-effect device in a compact package. It makes it easy to
use Korg's proprietary " " modeling technology to create detailed and powerful model-
ing sounds.
122 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
You can quickly and easily select ten types of
amp models and bass synths.
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).
AUX pitch function
You can transpose an audio source from a CD
player or other device connected to the AUX
jack, and erases the bass from a song for play
along purposes (Bass Cancel function) --- a
great way to practice!
Rhythm function
The PX4B can play 100 rhythm patterns (including metronome). Multiple patterns can also
be connected for successive playback.
Phrase Trainer function
Sound from a CD player or bass can be recorded (maximum of 31.7 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 mode
and the bass output can also be recorded simultaneously.
TAP button
You can easily set the Delay Time or the tempo
of the Rhythm 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 PX4B 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 PX4B. If you leave 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 PX4B for an
extended period of time.
An AC adapter is not included with this product. It must be purchased separately.
Controls and connectors
1Control knobs
These knobs control the tone, and volume of
the amp modeling.
2Liquid Crystal Display (LCD)
3TUNE/BYPASS button
4EXIT button
This button returns you back to Play mode from
any mode.
5ENTER/REC button
This button is used to switch an effect on/off,
or to start recording in Phrase Trainer mode.
6Input level switch
Use this to adjust the input level (appropriate
for the output level of your bass).
7Amp Modeling selector
Select the type of amp modeling.
8▲/▼ buttons
Use these buttons to select programs and edit
effects.
9OUTPUT jack
Connect this jack to your bass amp or headphones etc.
0INPUT jack
Connect your bass to this jack.
AAUX jack (stereo)
Connect this jack to a CD player or other audio source.
BDC 4.5V
The separately sold AC adapter (DC 4.5V
) 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.
DPower switch/Backlight switch
This switch turns the power On/Off, and also
turns the backlight On/Off.
Using the backlight and/or infra-red wireless
headphone transmitter, significantly shortens
the lifespan of the batteries.
EValue dial
Use this to adjust the master level, edit effects ,
and select programs.
FTAP button
You can set the Delay Time by pressing this
button twice at the desired tempo of delay. In
Rhythm mode, you can set the tempo of the
rhythm in the same way.
GMode buttons
Use these buttons to enter the Rhythm, Phrase
Trainer, or AUX Pitch modes.
9
LCD screen
1Effect chain
This area indicates the on/off status of the
DYNA, AMP, CAB, MOD, DLY, and REV effects
2Program name/Effect type display
This area shows the program name or effect
type. When the PX4B is bypassed or muted,
this will display as the tuner.
3Low Battery icon
This icon will light when the batteries run down.
4Mode icons
These icons will light when you are in the AUX
Pitch, Phrase Trainer, or Rhythm modes.
10
5Infrared transmitter icon
This icon will light when the infrared transmitter is on.
6Edit/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.
7Program 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.
8Master/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-bass
amp, stereo, ac adapter, etc) be sure to turn the
unit off.
mini-component /
stereo etc.
bass amp /
powered monitor
headphone
*6
*1 *1
AC adapter
*2
*1
*5
*4
*4
bass
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
(DC 4.5V
).
*3 If a CD player or other audio source is con-
nected to AUX jack, you can play along on
your bass with a tape, etc. However the volume must be adjusted on the connected de-
vice.
*4 Connecting cables are sold separately.
*5 PX4B’s output jack is stereo. If you use a stan-
dard mono cable to connect it to a bass amp
etc., only the L (left) output will be heard.
*6 PX4B’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 setting 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 bass.
Hi: Basses with a high output level (Active)
Lo: Basses with a low output level (Passive)
3. Set the volume control of the bass to its usual
position. Use the V alue dial to adjust the master level.
If you want to use the infrared transmitter function, refer to p.26 of Edit mode, "8) TX (Infrared
transmitter)."
12
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 modeling type, or use the control knobs to adjust the
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 Dela y Modeling can also be set
by pressing the TAP button twice at the desired
interval (except when in Rhythm mode). To check
the Delay Time that w as specified, press and hold
the TAP button for two seconds or longer .
When you use the Amp modeling selector to
choose an amp, the PX4B will automatically
select the most suitable cabinet model and turn
it on.
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).
Amp tone, and volume
Program selection
Amp selection
Input level switch
Program
name
Program
number
Set the
delay time
Master level
adjustment
Power /Backlight
switch
Play mode
Play mode is the mode in which you will normally
use the PX4B.
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 mode, AUX Pitch mode , or Phrase T rainer
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
seconds. The master level is remembered even
when the power is turned off.
13
Master icon
meter
center mark
sharp
note name
calibration
Value graph
Program number display
Master level value
You can also adjust the settings so that the ▲/▼
buttons will adjust the master level. (See p.15)
3.Bypass/Mute
When you press the TUNE/BYPASS button, the
PX4B 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/BYPASS button
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.
14
Bypass/mute will be turned off when you press
the TUNE/BYP ASS button once again.
Y ou can also return to Pla y 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.
Play a single string on your bass. 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.
The display area will act as a meter to show the
pitch.
Tune the string of your bass 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
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” for approximately one second.
The V alue dial will
the ▲/▼ buttons will
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, and
select programs. Y ou can
Adjust the
master level
Select a program
15
● Hold down the EXIT button and press the ®
button.
The LCD will indicate “PROGRAM” f or appro ximately 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.
Select a program
Adjust the master level
6.Key Lock function
By activating the Key Loc k function, y ou can disable all operations except for selecting prog rams.
This is a convenient way to prevent accidental
operation during a live performance.
Hold down the EXIT button and press the TUNE/
BYPASS button. The LCD will indicate “KEY-
LOCK” for approximately one second.
The ▲/▼ b uttons will select progr ams, and other
buttons and the Value dial will not function.
If you want to change the function of the Val-
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.
16
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.Specifying the
function of the Value Dial"(p.15).
Rhythm mode
Rhythm Pattern
Rhythm & Bass mode icon
T o enter Rh ythm mode , press the RHYTHM b ut-
ton 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 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 TAP button to set the val-
ue 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
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
"
Rhythm
reverb level
Rhythm level
1.Rhythm Pattern
Use the Value dial to select a rhythm pattern
(p.40).
17
2.Tempo
level
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.
tempo display
3.Rhythm Reverb Level
Use the Value dial to set the amount of Rhythm
sound that will be sent to reverb modeling.
Reverb level
The same effect as for the bass 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
4.Rhythm Level
Use the Value dial to set the level of Rhythm
sound. The bass note will be aff ected only if bass
is turned on.
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 se-
lect 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 play at that location. Use the ▲/▼ buttons to specify the number of times (1--8) that the selected pattern will
repeat.
Pattern location
Number of repeats
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.
Phrase Trainer mode
An audio source from the AUX jack or a phrase
you play on your bass 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 mode will be recorded simultaneously with the bass input, and
looped.
1.Select the recording mode
In Play mode (except during bypass/mute or key
lock), Rhythm mode, or AUX 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.
19
In this screen, the PX4B will be ready to record.
Recording
mode
Phrase Trainer icon
Recording
time
The recording mode will cycle through the following choices each time you press the PHRASE
TRAINER button.
AUX Records only the AUX input
BASS Records only the bass sound
AUX+BAS Records both the AUX input and
bass
JAM Records the bass together with the
rhythm that was last selected in
Rhythm mode
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, 3... Number of measures
20
If the recording mode is set to "JAM," the maximum number of recordable measures will be automatically calculated from the tempo. Also, the
audio quality will be automatically set according to
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 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 one measure 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
playback speed(%)
playback
time display
is turned off.
The phrase will be recorded and played back in
mono.
2.Recording
When you begin recording, the recording time will
be indicated as a numerical value and by a value
graph.
If the recording mode is set to "JAM," the re-
cording time will not be displayed.
Recording
time display
When you want to stop recording, press the ENTER/REC button or the [
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.
]. Recording will stop ,
3.Playback
The recording phrase will playback as a loop.
During playback or while paused, you can use
the ▲/▼ buttons to select programs.
Rotating the Value dial toward the left will slow
down the playback speed without affecting the
pitch. You can choose from six le v els of pla ybac k
speed: 100%, 90%, 80%, 75%, 66%, and 50%.
During playback, you can press the [ ] b utton
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.
21
4.Pause
When you press the [ ] button, the playback
will pause. Press the [
and playback will resume. Pressing the [
button while playback is 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,
22
] button
AUX Pitch mode
In this mode you can transpose the key (pitch) of
the sound from a CD or MD connected to the
]
AUX jack. You can also apply the Bass Cancel
effect to eliminate the low-frequency range.
Press the AUX PITCH button to enter A UX Pitch
mode. The AUX Pitch icon will light when you
are in this mode.
Each time you press the AUX PITCH button, y ou
will alternate between Key Transpose Only and
Key Transpose + Bass Cancel.
Key Transpose only
AUX Pitch icon
By setting the Key Transpose setting to 0 and
selecting Key Transpose + Bass Cancel, you can
turn on only the Bass Cancel function.
Press the EXIT button to return to Play mode.
Bass Cancel turned on
The output will be mono in AUX Pitch mode.
The AUX Pitch setting is remembered even
when the power is turned off.
For some input sources, Bass Cancel may not
be as effective as you would like.
Use the Value dial to specify the amount of key
transposition. The key can be transposed in a
range of +/-1 octave.
Display of
10 cent units
Display of
100 cent units
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.
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 (or WRITE) 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 performing the
“WRITE” function (see p.27).
Before
writing
After
writing
23
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 blink.
1) DYNA (Dynamics & Preamp Modeling)
This provides dynamic-type effects such as compressor, and pre-amp modeling.
On,
Off
Parameter
value
Type selection
2.Editing each effect
For each effect, you can select the effect type
and set its parameter values.
Effects that are turned "FX OFF" will automatically be turned on if you press the ENTER/REC
button or use the ▲/▼ buttons to select the effect type.
For details "On" the effect types and parameters,
refer to Effect Parameters (p.30). Renaming the
program, infrared transmitter settings, and writing the program are also performed here.
24
2) AMP (Amp Modeling)
This produces sounds that models a bass amp.
Low range*
Mid range*
On,
Off
*Operation will be different if SYNTH is
selected as the type.
High range*
mid-range
frequency
or gain*
Type selection
Volume*
The VOLUME control knob can be used to adjust the VOLUME even when the amp modeling
effect is "FX OFF."
The amp type selected by the Amp Modeling
selector can be selected and edited even without entering Edit mode.
When you use the Amp Modeling selector to
select an amp, the PX4B will automatically select the most appropriate cabinet model and turn
it on.
3) CAB (Cabinet Modeling)
This simulates the acoustic characteristics of the
bass 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
Presence
Type selection
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 Effect 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
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6) REV (Reverb Effect Modeling)
On,
Off
Infrared transmitter icon
These are spatial-type effects that add spaciousness to the sound.
On,
Off
7) NR (noise reduction)
Use the Value dial to adjust the depth of the noise
reduction that is applied. 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.
Adjust the NR level as suitable f or your bass or
pickup.
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Effect
level
Type selection
Adjust the
depth of noise
reduction
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.
8) TX (Infrared transmitter)
Use the ENTER/REC button to turn the infrared
transmitter On/Off.
The infrared transmitter setting is common to all
programs, and is remembered even when the
power is turned off.
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.
9) 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
10) WRITE
Here you can write (store) a program that you
created.
Use the Value dial to select the writing destination (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” for 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
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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 PX4B 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.
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Troubleshooting
If the PX4B 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? Alternatively, is the correct AC adapter connected to an AC outlet?
2.No sound.
• Are your bass, 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 PX4B set to “0” or to
a low level?
• The VOLUME control knob may have been
turned down.
• Is the PX4B 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.
• Is the volume of your bass turned down?
3.When using the infrared transmitter, there
is no sound or the sound is distorted.
• Is the infrared transmitter turned on?
• Is the power of your infrared wireless head-
phones turned on?
In some cases, the output sound may be dis-
torted because of the settings of the program.
(Adjust the master level and/or program level.)
• Is there an obstructing object between the
PX4B and the headphones?
• The PX4B's transmitter may be obstructed.
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.
• Are you using a connection cable with a built-
in resistor?
5.Effects do not apply.
• Is the PX4B bypassed? (the effect chain will
be blinking)
• Are the effects used in the program turned
on?
6.Tuner does not work.
• Is the PX4B bypassed or muted?
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Effect Parameter
DYNA (Dynamics & Preamp modeling)
COMP1 This compressor produces consistent levels and sustain. Adjusts sensitivity.
COMP2 A compressor with an emphasized attack. (1.0...10.0)
LIMITER A limiter that makes the level more consistent.
DYNAEXC This effect dynamically applies an exciter according to your Adjusts sensitivity.
OVERDRY Overdrive tuned for bass. Amount of distortion.
DIST
FUZZ Fuzz tuned for bass.
PREAMP1 Preamp set to a clear tone. Adjusts tone.
PREAMP2 Preamp set to a muted tone. (0...10.0)
BALANCE Creates the sound of blending the output of two pickups.
LOWCUT Filter that cuts the unwanted low-frequency range. Adjusts frequency.
FRETLES Simulates a fretless bass. Adjusts tone.(0...10.0)
SLOWATK Smoothes the attack of a bass to create a violin-like effect. Specify the attack speed.
picking strength. (This is especially effective when you want (0...10.0)
to give more sparkle to clean sounds.)
Distortion tuned for bass.
Effective for recording. (0...10.0)
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TYPE (▲/▼ button)
VALUE (Value Dial)
Specify the compression ratio.
(0...10.0)
(1.0...10.0)
(1.0...10.0)
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