Mission Expression 529i USB power supply

£199.99

The JustPedals 2026 smorgasbord FX menu delivers tasty Pedal Power Supplies from Mission to any location in the UK. Their Chef has a lot of ingredients to offer here with the Mission Expression 529i USB power supply. It is in stock, it is in a box and it is ready to be delivered to any location in the UK at a great price.. Just Read more Pedal Power Supplies details below.


Description

The JustPedals team think the Mission Expression 529i USB power supply is a tasty New Pedal Power Supplies option for your smorgasbord (pedalboard). Just Read More for images videos and latest prices from the Mission brand and delivered by a UK retailer, with warranty & more.

What's the point in spending time and money building the perfect pedalboard if your not getting the most out of your pedals? A good power supply is the foundation for any good pedalboard. Without clean, isolated power, you'll get unwanted noise and your pedals will sound dull. The Mission Engineering 529i allows you to power 8 outputs with enough power to get the best out of each and every pedal. And what's more, with an internal rechargeable battery you can power your pedals anywhere

Key Features

8 Isolated Power Outputs – The single most important thing to have in a power supply is isolated power. Because each pedal will be supplied independently of everything else in the chain which means it can draw as much current as it requires, and more importantly you won't get any grounding or noise floor issues that are common with sharing power, causing excessive hum. Although some power supplies offer more than 8 outlets, few can boast 8 isolated slots.

500mA of current – Even among the most powerful digital reverbs and delays, you will find few pedals that draw more than 500mA of current, so with all 8 outputs, you can rest assured that you're getting the most out of your pedals!

High Current 1A output – On the rare occasion that you are running an extremely powerful Multi effects processor or modeller such as the Line 6 HX Stomp or TC Electronic Plethora, the 529i comes with custom, colour coded cable that can pull up to 1A (1000mA) of current, and still leave 4 isolated outputs for your other favourite stomp boxes!

9V or 18V – Although the vast majority of pedals run on 9V of power, perhaps you have that one special pedal that takes 18V. The 529X includes an adaptor cable, capable of chaining to outlets into one pedal, juicing it with the full 18V.

On-The-Go Cordless Solution – Powered by a rechargeable battery, you can take it anywhere, without the constraint of available power outlets. Using a USB charger, the 529i boast a very handy 2 hour charge life!

Here's what Mission Engineering say about the 529i:

The Mission 529i provides eight isolated 9V pedal power outputs and a USB charging port from an internal rechargeable battery
 
The 529i features 2 x 500mA and 6 x 300mA 9V fully isolated outputs. With a 1A load, the 529i will power your pedalboard for 2 hours on a single charge. Recharge using the included 12V power supply, or from any USB charger.

The isolated 5V USB output can be used to charge mobile devices, or for USB powered audio equipment such as wireless receivers for a completely wireless and portable pedalboard.

The included voltage doubler cable allows two outputs to be used in series to power 18V pedals. Multiple outputs can be used in parallel with a suitable daisy chain cable to power high current devices such as the Line 6 HX Stomp and HX Effects.

All 9V outputs include short circuit and over current protection with red LED fault indication. There is also LED indication of input and output power active, charge state, and a soft touch power on/off switch.

Specifications

  • 529i power supply with internal battery
  • 12V wall charger
  • 8 x 2.1mm 9V DC cables
  • USB charging cable
  • 18V voltage doubler cable

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Brand

Mission

Category

Pedal Power Supplies

Tags

Expression

Expression pedals allow real-time control over specific parameters on compatible guitar pedals, such as volume, delay time, modulation depth, or filter sweep. Used with an expression input, they let players shape effects dynamically with their foot, adding movement and performance control that cannot be achieved with fixed knob settings.

power supply

A power supply pedal unit keeps your board running clean, stable, and noise-free. Designed to deliver consistent, isolated power to multiple pedals at once, it prevents hum, ground loops, and voltage issues that can creep in with cheap adapters or daisy chains. It’s the quiet backbone of a reliable setup.

Use a proper power supply to protect your tone, simplify your wiring, and make sure every pedal performs exactly as intended. Whether you’re running a compact board or a full touring rig, solid power keeps everything tight, dependable, and ready to play.