Korg PX4D

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Korg PX4D Personal Multi-Effect Processor

A new model to join the acclaimed Pandora series of versatile, pocket-sized units: the dual-purpose PX4D for guitar and bass.


The PX4D packs both guitar and bass functionality into a single unit (a first in the history of the Pandora series).


Numerous high-quality effects using “REMS” modeling technology are built in.


Contains a total of 158 effect types ranging from realistic amp sounds ­­– including high-quality cabinets – to sophisticated effects.


Provides 200 programs (100 preset / 100 user).


Use up to seven effects simultaneously.


Knob-based interface for quick and intuitive editing.


The Phrase Trainer function offers a great way to learn by ear or to practice soloing.


One hundred rhythm and bass patterns cover a variety of styles with realistic PCM sound.


AUX IN jack lets you play along with external CD, MD, or MP3 audio sources.


Key Transpose lets you shift the key of an audio source that's being input.


The PX4D provides a Bass Canceller function that removes the sound of the bass from an external audio source.


The built-in Auto Chromatic Tuner also provides a Mute function for silent tuning.


Semi-transparent LCD illuminates the characters in inverse video when backlit.


Two-way power supply lets you use either batteries or AC adaptor (sold separately).

Since its introduction, the Pandora series has been acclaimed by guitarists and bassists for its high-quality sound, versatile functionality, and superb operability – all in an amazingly compact package. And now the PX4D join the series. The PX4D combines both guitar and bass functionality into a single unit, and delivers a major leap in functionality as well. Its comprehensive range of sounds includes vintage amps and a wide range of cabinets, as well as effects ranging from classic to distinctively unique. This unit is a great choice not only for practicing, but for any situation that demands great guitar or bass sound, including recording and live performance.

Numerous built-in high-quality effects utilizing “REMS” modeling technology

The PX4D contains 158 effects that deliver vintage amp sounds and much more.

From high-end tube amps to rare vintage amps and classic favorites, the 25 amp types faithfully model the amp sounds that guitarists and bassists seek. Each of the 23 cabinet effects that reproduce the acoustic and structural resonances of a speaker cabinet were newly created especially for the PX4D.The creative possibilities are limitless – you can even combine a guitar amp with a bass cabinet.

In addition to standards such as compressor and wah, there are numerous realistic modeling effects that deliver a versatile range of tones. Pickup modeling transforms the sound of a single-coil pickup into that of a humbucking pickup (or vice versa), a guitar (bass) synth that lets you play synth sounds, an intelligent pitch shifter that automatically harmonizes with your playing, a talk effect that produces the impression that your guitar is speaking, a slow attack effect that creates violin-type swells, a feedback effect that allows feedback playing techniques that are normally possible only at high volumes, a rotary speaker that changes speed in response to your picking or fingering dynamics, a fretless bass effect that simulates the distinctive sound of a fretless bass, and many more are ready for your use.

The PX4D provides 200 programs (100 preset / 100 user)

The PX4D provides 100 preset programs covering a broad range of styles, including sounds of famous artists. You can also create and store the same number of user programs.

Amp-like ease of operation

The user interface is knob-based for intuitive and easy use. Frequently-used parameters, such as the amp type, have their own independent dial, and the tone controls can also be adjusted as easily as on a guitar or bass amp simply by turning the knobs. The value dial makes it a simple matter to adjust amp types and parameter values. There's also a TAP button that you can use to set delay times or the tempo of a rhythm pattern.

One hundred rhythm and bass patterns cover numerous styles with realistic PCM sound.

The one hundred built-in rhythm patterns cover a broad range of styles that include rock, jazz, funk, blues and dance music. The PCM sounds used in these patterns produce realistic accompaniments that are fun to play along with. There are even Bass patterns that let you specify the key chord, so you can practice any style of music while listening to a full rhythm and bass line. Since you can use the effect programs at the same time as these patterns, this is a great way to practice your picking, improve your rhythm or develop your sense of pitch. You can also make Chain Pattern settings to combine up to sixteen different rhythm patterns.

Phrase Trainer function helps you learn phrases by ear or practice soloing

You can record up to 30 seconds from an audio source such as a CD, MD or MP3, and play it back repeatedly (looped) at a slower speed without changing the pitch. This is a great way to learn complex or rapid passages by ear, since you'll be able to hear the phrase slowly. You can also record a phrase that you play yourself along with the built-in rhythm and bass accompaniment, and then practice soloing over the top of it.

Mix your own playing with the playback of an audio source

You can connect a CD player or another external audio source to the AUX IN jack, and use the Key Transpose function to change the pitch of the song upward or downward by as much as one octave. The PX4D also contains a Bass Canceller function that erases the bass sound from an external audio source so that you can play and hear your bass along with the song.

Semitransparent LCD for superb visibility

The LCD that displays the names of effects and programs is backlit so you can read it easily even on a dimly lit stage. Immediately recognizable icons represent numerous functions. The display uses a semitransparent LCD so that characters and icons are lit up when backlit, providing a distinctive appearance. The unit also comes with a strap holder so that you can attach it directly to your instrument strap.

• Acoustic Guitars


• Bass Guitars
  4-String Active, 4-String Passive, 5-String, 5-String Active, 5-String Passive, 6-String Active, 6/8-String, Bass Guitar Packs, Electro/Acoustic, Fretless


• Classical Guitars
  Cutaway, Electro/Classical, Non-Cutaway


• Electric Guitars
  Guitar Packs, Left Handed, Les Paul Style, Metal/Modern, Retro/Reissue, Semi/Jazz Style, SG Style, Strat Style, Super Strat Style, Tele Style, Travel Guitar


• Electro/Acoustic Guitars
  12-String, Cutaway 12-String, Cutaway 6-String


• FX/Pedals
  FX/Pedals Accessories, Stomp Boxes


• Pick ups
  Acoustic, Bass, Humbucker, Matched Set, Singlecoil