Mooer Macro Power S12


Multi Power Supply for Effects Units

  • Maximum total current output: 3,400 mA
  • Two toroidal transformers and advanced filter technology for clean power with no noise
  • 12 Completely independent, galvanically isolated outputs for 2.5 mm x 5.5 mm hollow plugs with polarity (-) inside
  • 1x Adjustable voltage (9V, 12V, 15V, 18V) with 200 mA loadable
  • 2x Independent 9V each with 600 mA loadable
  • 3x Independently 9V each with 300 mA loadable
  • 6x Independent 9V with 200 mA each loadable
  • 4x Independent 9V with 400 mA total load capacity
  • IEC AC input
  • Selectable input voltage (110V ~ 120V and 220V ~ 240V) for use in different regions
  • Status LED for each output
  • Overvoltage protection function
  • Dimensions (L x W x H) 225 x 88 x 5 mm
  • Weight 1.82 kg
  • Includes power supply cable (6x 460 mm, 6x 610 mm), polarity reversal cable (1x 200 mm, red plugs), power cord and hook & loop tape

Note: Register your product at and extend the warranty to 4 years.

Note Register your purchase at for an extended warranty of 4 years.
DC/AC current DC
Output current in mA 3400 mA
9 V Yes
12 V Yes
18 V Yes
Secondary voltage Yes
Multi-output power supply Yes
available since June 2018
Item number 440144
sales unit 1 piece(s)
Including VAT; Excluding £8 shipping
In stock
In stock

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59 Sales Rank
No more noise
Terrains 21.12.2020
My pedalboard is silent (in a good way) since upgrading to this power supply. No more noisy pedals. It's a solid and reliable power supply, which is all you really want.

It's chunky, so might not fit under every board, and it's heavy - but I find that reassuring... If you trod on it somehow I think the only damage would be to your foot. The kettle plug connector is also handy, you always have a spare power lead to hand. Good range of inputs and always useful to have a variable voltage input.

The only negative is there's no kind of mounting bracket for this power supply that I can find.


The last power supply you'll ever need (maybe)!
freakinpete 27.09.2018
I bought this power supply to replace a smaller capacity supply that was starting to give problems - I added an EHX Oceans Eleven to my board and it pushed the Harley Benton Powerplant over the edge. This supply is excellent - it has isolated outputs to support even the most demanding pedal, and one adjustable voltage output, so should be flexible enough to support most boards.
This supply is slightly bigger and heavier than the Harley Benton Powerplant, and it lacks an actual on/off button. I still managed to fit it under my board, and it's working great. I don't think I will ever need to replace or upgrade this power supply.


Made my life much easier and hum free.
Tin s 03.03.2019
Until now I've powered my pedals with batteries and 9v adapters, the adapters sometimes cause hum and the batteries are a pain in the a**, first because they die on you when you least expect and second, you have to unplug all your pedals so you don't drain the battery...
Now its all neat, connected and ready to play when ever I want.
The build quality is just great and the 12 isolated outputs are more than enough, in the price range and above it, it beats everything.
12v and 18v switch for the one output is a really great feature for those rare pedals that use it.
The power supply can be used all over the world since there is a 110-220v switch in the back.
It sure made my life much easier and it will make yours too, I bet on it.


Mooer Macro Power S12
Deon 16.10.2019
A bit noisy in a studio setup. you can hear it "humming". Other than that it does what it should do, delivering clean power.