Korg Toneworks Pandora PX4D

The Pandora PX4D is one of the most capable pocket-sized multi-effect processors ever made — a belt-clip unit that handles both guitar and bass with a depth of tone-shaping that belies its size. Korg's REMS modeling technology drives 158 effect types covering dynamics, pickup simulation, amp modeling, cabinet simulation, modulation, delay, and reverb, with up to seven effects running simultaneously. Twenty-five amp types span guitar and bass applications, and 23 cabinet models recreate the acoustic character of specific speaker enclosures. The phrase trainer records up to 30 seconds of external audio and plays it back at reduced speed without affecting pitch — genuinely useful for learning solos. One hundred PCM rhythm and bass patterns cover practice backing across styles, a chromatic auto-tuner handles intonation, and an AUX input lets you play along with any external source. The TAP button sets delay time and rhythm tempo on the fly. Knob-based interface and backlit LCD keep it intuitive throughout. Battery powered for up to 10 hours on four AAAs, or via optional AC adapter.
This unit is in good condition and fully functional throughout. Shows signs of physical wear consistent with regular use. Photos show the condition accurately.
- Make: Korg
- Model: ToneWorks Pandora PX4D
- Type: personal multi-effect processor, guitar and bass
- Effects: 158 types, up to 7 simultaneous
- Amp models: 25 (15 guitar, 10 bass, plus synth)
- Cabinet models: 23
- Presets: 100 factory, 100 user
- Phrase trainer: up to 30 seconds, variable speed playback
- Rhythm patterns: 100 PCM-based
- Tuner: auto chromatic, with mute
- AUX input: yes, with key transpose
- Display: backlit LCD
- Interface: knob-based IPE system
- TAP tempo: yes
- Power: 4 x AAA batteries (up to 10 hours) or optional AC adapter
- Dimensions: 76mm W x 112mm D x 27mm H
- Modifications: none
- Includes: none
Ships carefully packed and insured for full value.
International buyers are welcome — please contact us for a shipping quote before purchasing.
About Mill River Music
Mill River Music is an independent, human-powered music shop located in downtown Northampton, MA, run by a team of players, enthusiasts, and certified repair technicians. Every piece of used gear we sell is personally inspected, tested, and set up before it ships — we don't list it until we'd be happy to play it ourselves.
As Martin and Taylor certified techs, we hold our guitar work to a high standard, and we're committed to full transparency about the condition of everything we sell. No surprises.
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