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Product Description

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About this Pedal Tuner and Power Supply Pedal

JOYO Audio delivers a compact and convenient way to combine the essential tools of the guitarist's pedalboard that do not necessarily make a sound but enable it to all happen. A True Bypass guitar pedal tuner and guitar effect pedal power supply.

The JF-18 Power Tune combines both power supply and tuner into one amazing product, saving space and eliminating noise

The POWER section features a filtered low noise output with short circuit and over current protection. Six outputs give you the standard 100ma power for most of your standard analogue pedals on your board, whilst two additional outputs can deliver 500ma, which will cover even the most demanding digital effects units.

The TUNE section delivers via the large LED screen, which is easy to see in any lighting condition. Using a technologically impressive rapid chromatic tuning algorithm, ensuring fast and responsive note detection for any guitar or bass player. 

There is no need to worry about your guitar signal running though the power supply, we have made sure that there is no crosstalk noise or hum, the switching adapter does not get hot, unlike many other guitar power supplies. We also include 8 DC power chords and 2 polarity reversing cables.

Of course, you can use the Power Tune independently, the tuner section features True Bypass circuit to minimise signal loss

The Tech Features

Brand: Joyo

Model: JF18R

Tuning Parameters:

  • Input: 1/4 mono port
  • Output: 1/4 mono port
  • Tuning Range: 12Hz-4186Hz
  • Working voltage: DC9v (centre negative).
  • Running current: DC120mA.
  • Power Parameters
  • Input voltage for adapter: AC100 -240v.
  • One DC9v input, 2A input (centre negative).
  • 9 x DC 9v outputs, 2 x 500mA, 6 x 100mA (centre negative).
  • Filtered short-circuit and over current protection.

Accessories included:

  • Includes power supply adaptor.
  • 8 x DC power chords.
  • 2 x polarity reversing cables.


Bargain Bin

Reviews (15)

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Joyo JF18R Power Tune Power Supply and Tuner Pedal

By: on 1 October 2021
This Tuner Pedal/Power Supply is Awesome. The Tuner is very sensitive, accurate and Very Easy to see. The Power supply is perfect for my small board and works very well. As with all The Joyo pedals this is well made, they have supplied all the cables required in different lengths to keep board tidy. Fantastic Products and Service as always, Thankyou Artist Guitars.

Artist Guitars Response
You are very much welcome! Not only does this save real estate, but this also makes the bottom of your board tidy.

Power tune pedal and power supply

By: on 29 September 2021
Just purchased this pedal for my new board I am currently building,absolutely brilliant accurate easy to see in any lighting conditions tuner, with the added bonus of filtered power supply for up to 8 pedals,would highly recommend to anybody looking for power supply and tuner for their board,great solidly constructed pedal with the benefit of 2 x500 ma and 6x 100 ma filtered power outlets powers everything on my board no problem excellent product could not be happier,with of course the great service and speedy shipping from Artist congratulations you’ve done it again.

Artist Guitars Response
It is our pleasure and thank you so much for sharing your experience with us. This really helps us a lot.

Highly recommend the JF18R. Awesome product!!!

By: on 3 December 2020
The JF18R is a fantastic solution for not only giving you an accurate, true bypass tuner with a large and easy to read display, (perfect for practice/live use), but the added bonus of having this as the one power supply to power all the pedals in your chain that can accommodate 8 pedals? ...(Only have 5 but having 2 pedals requiring slightly more than 100mA, again, PERFECT)!!.... <Note: One of the "up to 500mA" power sockets needs to be occupied for this to work correctly utilizing the power from the pedal itself>.... You have all the accessories power cable combo's included that you would ever need. Brilliant for cable management on a pedal board. That and it can help protect other pedals in your chain with 'over-current' protection? Exactly what I was looking for. Great product, great price!

Power tuner

By: on 28 September 2020
I am amassing a pedal collection and needed to get a power source which could handle the growing collection. The bonus was the tuner part, it’s bright and easy to read and tracks true to tune in with ease. Great stuff joyo!

Joyo Power Tune JF18R

By: on 16 September 2020
Good product, combining the tuner and power distribution is cost and space saving. Well made and looks great. The tuner display is large and easy to see. The supplied power cables come in three sizes, 2 short (40cm), 4 medium (60cm) and 2 long (80cm). Plus two short polarity change cables. All in all a well thought out package. Quick delivery, good service, thank you Artist Guitars.