JOYO Power Supply Tuner Pedal with Isolated 8-Channel Outputs - Low

In this review the JOYO Power Tune is presented as a space-saving solution for gigging and home players who need a tidy pedalboard and reliable power. The biggest reason to buy is its combination of an accurate bass tuner and a dedicated power supply in one enclosure, delivering eight isolated DC 9V outputs so players can power most analogue and digital pedals without extra bricks or noise. For players building compact rigs the integrated tuner plus isolated outputs makes setup faster and reduces hum.

Key Features

• Integrated tuner and supply: Combines a clear large LED tuner screen with a power supply to save pedalboard space and reduce cable clutter.
• Eight isolated outputs: Eight DC 9V outputs prevent ground loops and help eliminate noise by keeping pedal circuits separate.
• Two high-current ports: Two 500mA outputs support demanding digital pedals while six 100mA outputs suit most analogue effects.
• Protected low-noise design: Filtered outputs include short circuit and over current protection to safeguard pedals and maintain a quiet signal chain.
• True bypass tuner wiring: Tuner uses true bypass to avoid tone loss when it is not engaged, preserving the best tone quality.
• Durable chassis: Full aluminium-alloy housing offers a stable, road-ready platform for frequent use.

Who It's For

The Power Tune suits guitarists and bassists who run multiple pedals and want a neat, quieter setup with an onboard tuner. It is particularly useful for players who mix analogue stomps with a few power-hungry digital units and need isolated feeds to avoid noise and ground loops.

Players who only need one or two pedals or who prefer a lighter power solution might look elsewhere; likewise, rigs requiring varied voltages other than DC 9V or specialized connector types will need a different supply. This unit is best when 9V outputs and compact board layout are priorities.

Pros & Cons

Pros

• Combines a reliable tuner and an isolated power supply into one pedalboard-friendly unit.
• Eight isolated DC 9V outputs reduce ground loop hum and let you power many pedals from a single box.
• Two 500mA outputs provide enough current for demanding digital pedals while six 100mA ports cover analogue effects.
• Solid aluminium housing and large LED screen make it robust and easy to read on stage.

Cons

• All outputs are DC 9V only, so users needing other voltages must buy additional converters or a different supply.
• Some users report mixed results on noise depending on cabling and pedal combinations, so quality cables and correct current matching are important.

Specifications

Our Verdict

The JOYO Power Tune is a practical value choice for players who want an integrated tuner and an isolated power supply to keep boards tidy and reduce noise. It delivers good build quality and the two 500mA outputs make it versatile enough for mixed analogue and digital rigs; just ensure all pedals are 9V compatible and use quality cables for best results.

Frequently Asked Questions

Can it power digital pedals that need higher current?
Yes, two of the outputs provide 500mA each, suitable for many higher-current digital pedals while the other six are 100mA.

Does the tuner affect signal tone when not in use?
The tuner uses true bypass wiring to minimise signal loss, so tone should be preserved when the tuner is bypassed.

Will it eliminate all noise on my board?
Isolated outputs significantly reduce ground loop hum, but proper cabling and matching pedal current requirements are important to avoid unexpected noise.