MXR M239 ISO Brick Mini Power Supply

MXR M239 ISO Brick Mini Power Supply



We will ship to you as soon as we receive stock.

MXR M239 ISO Brick Mini Power Supply
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MXR may well be renowned for their high-quality effects, but it's worth noting that their power supplies - like this MXR M239 ISO Brick Mini - are also impressive.

Lightweight, Noise Free, and Robust

If you're looking for a mini Power Supply for your pedalboard that supplies quiet, noise-free power with plenty of outputs, then the MXR M239 ISO Brick Mini is for you.

This space-saving power solution is ideal for smaller pedalboards, but don't let that fool you, because it can power almost any pedal.

Plenty of Outputs

This Mini Iso-Brick features an impressive five outputs.

  • Four outputs supply 9v of power at 300mA
  • The fifth output is switchable between 9v and 18v for up to 800mA

Not only that, but each output is fully is fully isolated, therefore eliminating obnoxious, gig-ending ground loop noise.

If that wasn't impressive enough, each output can handle both negative and positive grounds. This means that each output can accommodate virtually ANY pedal.

Added Versatility

If five outputs isn't quite enough, don't worry: the MXR M239 ISO Brick Mini comes complete with a splitter cable. This cable allows you to connect two pedals of equal power needs to a single output!

All of the five outputs can accommodate one of these splitters too allowing you to adequately power up to 10 effects pedals total!

Troubleshooting Made Easy

When using a power brick at a gig, there's nothing worse than being able to hear one of your pedals not functioning properly, whilst being unable to see which output is having issues. Worry not, because the MXR M239 ISO Brick Mini comes equipped with bright LEDs over each output, making it visible on even the darkest of stages.

Ready to Gig

As if all of that wasn't enough, this Mini Iso-Brick Power Supply also comes in a lightweight, durable chassis. Because of this, you can feel confident in the knowledge that it can withstand even the roughest of treatment, keeping you powered from gig to gig!

Order Yours Today

The MXR M239 ISO Brick Mini is available for you to order now, both Online and In-Store. If you have any queries regarding product availability, then don't hesitate to contact our online sales team directly!

MXR M239 ISO Brick Mini Highlights

  • Miniature, noise-free pedal power supply
  • Features 4 x 9v power outputs at 300mA, and a 9v or 18v (switchable) output at 800mA
  • Includes splitter cable for connecting 2 pedals of equal voltage to same output
  • Bright LEDs allow connections to be seen on the darkest of stages
  • Lightweight and robust chassis
  • Powered by 18v 2000mA power adapter (included)
  • Protected against power shorts and overloads thanks to Foldback Current Limiting Circuit (FBCL)
  • New for 2018

Technical Specs

  • Input 18V: At 2 Amps regulated supply (positive barrel negative center 5.5mm x 2.1mm plug)
  • Outputs: 9-18V @ 800mA (switched), (4) 9V @ 300 mA, (all positive barrel negative center 5.5mm x 2.1mm)
More Information
Manufacturer MXR
SKU 181847
Shipping Weight (kg) 0.620000
Warranty 2 Years


We have a wide range of Delivery Options available, depending on the value of your parcel and budget. Select from our 2-3 Day Saver Service or our Next Working Day options at the Checkout.
This will include a text or email on the day of delivery giving you an exact hour window of when your gear will be with you, and the drivers name - just so you know when to turn the volume down!

  • Free Delivery Available on Selected Products
  • Weekend UK Mainland Delivery (Saturday-Sunday): £19.99
  • Small Items (Under 750g) Small items will be delivered by Royal Mail starting from 99p
  • Heavy Items (Over 30kg): Pallet Service Doorstep Delivery £65

For heavy items, courier details, out of stock products, out of area postcodes or international deliveries see our full Delivery info here.


Rather not wait in for the delivery? Don’t worry, we’ve got you…In Stock items can be ordered and paid for in-advance Online via our Click & Collect service. As long as if it's in stock at your chosen branch, you can collect the item within the hour.

Click here for more about our local Click & Collect Service.


If you and your item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT experts either by phone or email to return your item.

*Please note, we cannot accept returns of:

  • Special/Custom Orders - Any order that is custom or has been personalised.
  • Products with Hygiene Seals - Microphones, any in-ear earphones, monitors, orchestral instruments with mouthpieces and any other items that touch your mouth, nose or inner ear if you have broken the hygienic seal on the packaging.
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Click here for more information on Returns at PMT.

Online Orders

If you and your new item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT Experts either by phone or email to return your item or organise an exchange for something more suitable.

Store Orders

If you've changed your mind about something you bought in-store, bring it back within 14 days of purchase and we'll be happy to exchange it for another product, a gift card or store credit.