Korena
Product detailSKU #1500000390151

JoyoJP-04 Isolated Power Supply

Joyo
Joyo JP-04 Isolated Power Supply
1/7

Independent shopping perspective

The Korena take

The JP-04 is an isolated pedal power supply for running several effects pedals together with eight separate 9V outputs. Each output has its own power cable and ground wire, keeping the outputs isolated from one another. That arrangement is intended to address ground-loop problems and unwanted hum or noise in a multi-pedal setup. It also includes protection against short circuits and inconsistent power for dependable operation.

Joyo JP-04 Isolated Power Supply product detail
Product studyJoyo JP-04 Isolated Power Supply
Joyo JP-04 Isolated Power Supply alternate view
Alternate view

Strong match

Who this is for

  • Multi-pedal rigs where ground loops or unwanted hum need to be addressed through isolated 9V outputs.
  • Powering up to eight 9V pedals with independent output cables and ground wires.

What matters in use

The specifications, translated

Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Joyo JP-04 Isolated Power Supply construction detail

Detail 01

Eight isolated 9V outputs

Provides eight separately isolated power connections for effects pedals.

Detail 02

Independent power cable and ground wire per output

Each output is isolated individually rather than sharing the same connection.

Final check

Know before you order

  1. 01Confirm that the pedals you intend to power use 9V connections.
  2. 02The unit provides eight outputs, so plan the number of pedals accordingly.
Joyo JP-04 Isolated Power Supply close-up

Product questions

Before you decide

Straight answers to the questions shoppers most often ask about this product.

01How many outputs does the JP-04 have?

It has eight isolated 9V outputs.

02Can it help with pedalboard hum?

Yes. Its isolated outputs are designed to reduce ground loops and unwanted noise when several pedals are used together.

03Does it have protection features?

It includes protection from short circuits and power inconsistencies.

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