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Based on price data from 5 merchants for "MXR DC Brick™ Power Supply – M237". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Elevate your performances and jam sessions with the MXR DC Brick™ Power Supply – M237. This revamped version of the iconic DCB10 not only provides all-night power to your pedals but also doubles the power of the original. Its compact design neatly fits into your pedalboard without stealing valuable space.
With the MXR DC Brick, you have the flexibility to use almost any combination of effects. It comes equipped with eight 9v outputs and two 18v outputs, offering a stable and safe power source for your gear.
The DC Brick is all about convenience and efficiency. Its red LED indicators alert you of any shorts, empowering you to quickly troubleshoot power problems and keep the music flowing. Plus, with its short-circuit and overload protection, you can trust the MXR DC Brick to reliably power your pedals, ensuring your sound remains uninterrupted.
Key Features:
- Provides power for up to 10 pedals (8 x 9V and 2 x 18V)
- Short Circuit Protection ensures stable working mode
- Red LED indicators for quick identification of short-circuited pedals
- Compact design fits neatly on your pedalboard
- Includes AC adapter and all necessary power distribution cables
- Durable and sturdy metal housing for longevity
- Total power of 2000 mA guarantees reliable performance
- Ideal for both midsize bass or guitar pedalboards
Product specs
| Type | Pedalboard Power Supply |
| Inputs | 18V DC (AC adapter included) |
| Outputs | 8 x 9V (1200mA), 2 x 18V (800mA) |
| Connectivity | 2.1mm barrel, center negative |
| Isolated Output | No |
| Height | 1" |
| Width | 4.25" |
| Depth | 2.3" |
FAQs
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How many pedals can the MXR DC Brick Power Supply power at once?
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The MXR DC Brick Power Supply can power up to ten pedals simultaneously, with eight 9V outputs and two 18V outputs.
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Does the MXR DC Brick Power Supply provide isolated outputs?
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No, the MXR DC Brick Power Supply does not provide isolated outputs; it features shared ground connections for all outputs.
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What type of power adapter is included with the MXR DC Brick Power Supply?
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The MXR DC Brick Power Supply includes an 18V DC power adapter, which is compatible with a range of international voltages from 100–240V.
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Is the MXR DC Brick Power Supply suitable for both 9V and 18V pedals?
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Yes, the MXR DC Brick Power Supply is suitable for both 9V and 18V pedals, offering eight 9V outputs and two 18V outputs to accommodate different pedal requirements.
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What are the dimensions of the MXR DC Brick Power Supply?
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The MXR DC Brick Power Supply measures 4.25 inches in width, 2.3 inches in depth, and 1 inch in height, making it compact for pedalboard integration.
Videos
jimdunlopusa
MXR Iso-Brick Power Supply
Reviews
PROS
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Eliminates hum and buzz, improving tone significantly
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Compact and lightweight, easy to mount under pedalboards
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Powers multiple pedals (up to 10) efficiently with 8x 9V and 2x 18V outputs
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Durable construction, built like a tank
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Positive impact on audio quality noticed by band members
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LEDs provide helpful power status and warning indicators
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Eliminated noise issues with high-gain pedals and amps
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Great value for the quality and features offered
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Reliable and solid build quality from a reputable brand
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Isolated outputs reduce noise for a cleaner signal
CONS
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Inconsistent compatibility with certain pedals, causing hum
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Does not come with a UK power adaptor, problematic for UK users
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Price may be high compared to other power supplies
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Power transformer attached to cord can be bulky and inconvenient
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Lack of grounding prong on AC adapter, causing noise issues for some users
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Limited to 100mA per output, not enough for power-hungry pedals
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about MXR DC Brick™ Power Supply – M237.
Features and functionality
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The MXR DC Brick is essentially a daisy chain in a metal box, lacking isolated outputs, which can lead to noise issues when combining digital and analog pedals.
Source -
Chaining two MXR DC Bricks is possible, but the second unit's output is constrained by the first brick's 18V output, estimated conservatively at around 800 mA 9V.
Source
Setup and maintenance
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Users report that the screenprint on the variable voltage ports is incorrect; setting it to 9V actually outputs 10V.
Source
Comparisons
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Many recommend the Voodoo Labs Pedal Power 2 Plus or Cioks DC7 over the MXR DC Brick for truly isolated power and reduced noise.
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The Mini Iso Brick is suggested as a slightly more expensive alternative that offers better functionality than chaining two DC Bricks, providing isolated outputs.
Source
Use cases and applications
Critic Reviews
4.5 out of 5
Based on 12 Reviews and 69 Ratings
Meh
It's story and reliable, but it's not isolated. It really doesn't make as much of a difference as everyone says.
With some of the cheaper $30 Donner power supplies you can forgive it, but if you're going to spend $100 on a power supply you might as well spend $25 more and get something isolated that you can keep forever.
266
can't say anything negative about it!
I just wish it had more 9V outputs but that's me being overly nitpicky. there is nothing bad I can say about this power supply except for the fact that it is not an isolated supply. the MXR Iso-Brick is an isolated power supply, the DC Brick is not, meaning there will be a hum at the highest volumes. but if you're at the point of being in a band that you're playing shows that require you to be loud enough to overwork this power supply, then you more than likely have enough money to upgrade to another power supply. so, once again, nothing bad can be said about the DC Brick.
Preferred Settings + Usage:
Genres: Punk Rock, Hard Rock, Blues Rock
26286
Good
Does it's thing. Lightweight, small foot print. Will fit underneath a small pedalboard. No tonesuck.
1539
Does the trick with no tone-suck
Just got this and haven't played much yet, but it powers my pedals with no problems and doesn't seem to contribute any tone-suck problems. Well-built, and smaller than I expected. Happy so far! MXR/Dunlop stuff always seems solid. Mainly got it because I've had a cheap powered pedal board for a long time that has taken up a lot of space and had a lot of features I never use (terrible built in speaker??), and when I decided I wanted to get my pedals up off the floor so they're more within reach I needed a new way to power them.
397
Ideal for small pedalboard
Loved this power supply! 8x 9V plus 2x 18V make it ideal for a small pedalboard, providing you do not have pedals that require more than 100mA. A single (older) digital pedal will still work but it cannot provide enough power for a Strymon pedal
Super small super light
Got it like a month ago and it seems to work just fine. I haven't noticed any increase in the hum powering my 7 pedals with it, but the best things about it sure are its size and weight...It's way smaller and lighter than most of my pedals! Recommend it
94
Perfect for it's side, very useful LEDs lights.
I'd say this is one of the most reliable, solid pedals I have. It has 8 9V and 2 18V outs, which at least for me it's plenty. The thing with the LEDs is pretty great. I had a problem once when a pedal was failing the sound for a couple of days and then one day after I moved my pedal board it just stopped working. I noticed that a LED on the brick lit red. I took a look at it and found out that after I moved the board a power cord between the brick and the pedal was almost broken. It never happened onstage but it's a pretty great advantage to have this warning before you play. If you plug your board and see a red light there you can work on it before it fails your song in the middle of the gig. Cheers
chord too short.
no problems with power your effect pedals. just the cable to power the mxr dc brick is too small. it's one of those power chord with a big block at the end of it, which is annoying for live/home use. positive note: when i used a 1 spot with my mxr bass octave deluxe and mxr bass fuzz deluxe, they made a terrible noise. the mxr dc brick eliminated that noise.
69
Have one of these to keep all of my pedals powered (duh). It's pretty good and I've heard people whine about hum but I've never had that problem myself. Great piece of gear, and great value for money.
Have one of these to keep all of my pedals powered (duh). It's pretty good and I've heard people whine about hum but I've never had that problem myself. Great piece of gear, and great value for money.
Artist usage
Add artist
In the Effects Bay article titled "J Mascis Pedalboard - 2017," J Mascis is shown using the MXR DC Brick™ Power Supply – M237 on his pedalboard, described as essential for powering his effects setup.
Seen on Stu's pedalboard in this 2015 article: https://issuu.com/subbacultcha/docs/subbacultcha_dtrh2015/31
"That's a really nice little power supply, and what's great is it supplies 18 volts, which enables this compressor pedal here to work as it's supposed to" – Adam Nolly Getgood on the MXR DC Brick
In the video titled "MIRADOR Rig Rundown with Jake Kiszka & Chris Turpin" by Premier Guitar, an MXR DC Brick™ Power Supply – M237 is visible on the top row of Jake Kiszka's pedalboard at the 30:48 timestamp.
In this video in Portuguese, Andreas gives a rundown of the rig he's using for the Machine Messiah Tour 2017. The MXR DC Brick can be seen 6:50 into the video.
In a Twitter post by cityandcolour, Dallas Green is shown using the MXR DC Brick™ Power Supply – M237 during the recording of his sixth album.
In this picture, from Wolf Alice's gig at The Boogaloo, London, on 24/02/15, Ellie Rowsell can be seen using an MXR DC Brick.
the power supply is seen in this image of his pedalboard from a reverb article https://reverb.com/uk/news/inside-gojiras-touring-rig
In this image from Ash's verified Facebook page, his pedalboard is shown with a DC Brick above and to the right on stage at a live performance by Poptone.
Album Usage
The MXR DC Brick™ Power Supply – M237 has been featured on the following albums:
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use MXR DC Brick™ Power Supply – M237, it is most commonly used with the following gear.
Community setups
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