A pedal power supply replaces batteries and wall adapters with one box and many outputs. Isolated outputs are the usual choice because each port is kept apart from the others, and the voltage options decide which pedals you can run.
The six units below range from a five-output mini brick to 12-output and 10-output models, with 9V, 12V and 18V options. Outputs, voltages and sizes come from each listing page. We have not used these supplies ourselves, and noise claims are the makers’ own.
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What to Look For
| Feature | Why it matters |
|---|---|
| Output count | One output per pedal, plus a spare or two |
| Voltage options | Some pedals need 12V or 18V rather than 9V |
| Current per output | Digital pedals draw more than simple analog ones |
| Size and mounting | Brackets let it sit under a board |
| Isolation | Kept-apart outputs are described as reducing shared noise |
Specs at a Glance
| Supply | Outputs | Voltages | Notes |
|---|---|---|---|
| MXR Mini Iso-Brick | 5 | 9V and one 9V or 18V | Four 300 mA outputs; one 800 mA output; 70 g |
| Voodoo Lab Pedal Power 3 PLUS | 12 | 9V and two switchable 9V or 12V | 500 mA outputs; X-Link expansion; aluminum; 2.3 lb |
| Truetone 1 SPOT Pro CS7 | 7 | 9V, 12V, 18V | One 18V, four switchable 9V or 12V, two 9V; mounting brackets |
| Walrus Canvas Power 5 Link | 5 | 9V | Five DC cables; link cable; mounting brackets; 186 g |
| Donner DP-Z | 10 plus USB | 9V, 12V, 18V | 18V 2 A input; LED light bar; aluminum alloy |
| Gator GTR-PWR-8 | 8 | 9V, 12V, 18V and 12V AC | 1600 mA total; switchable 115V or 240V input; 4.9 lb |
The 6 Best Pedal Power Supplies
1. MXR Mini Iso-Brick
A fully isolated mini supply with five outputs: four 9 volt outputs at 300 mA and one toggleable 9 or 18 volt output at 800 mA. It includes a splitter cable for two pedals of the same voltage and weighs 70 grams. Some spec fields look generic, so rely on the bullets.
Suits: a small board. Strengths: an 18V option in a tiny box. Weaknesses: only five outputs. Skip it if you need many ports.
View MXR Mini Iso-Brick Power Supply on Amazon
2. Voodoo Lab Pedal Power 3 PLUS
A 12-output isolated supply with ten 9V outputs and two switchable 9V or 12V outputs, each at 500 mA. The maker lists X-Link ports to add Pedal Power X4 and X8 units, 100-240V operation, an aluminum case, a DC cable kit and a 5-year North America warranty. The size shown in the field and in the bullet differ, so check the page.
Suits: a big, growing board. Strengths: 12 outputs and expansion. Weaknesses: conflicting size data. Skip it if you only run a few pedals.
View Voodoo Lab Pedal Power 3 PLUS High Current 12-Output Isolated Power Supply on Amazon
3. Truetone 1 SPOT Pro CS7
A seven-output isolated supply with one 18V output, four switchable 9V or 12V outputs and two 9V outputs. The listing includes cables, adapters and mounting brackets, weighs 16 ounces and the maker offers a lifetime warranty. The 1 x 1 x 1 inch size field looks like a placeholder.
Suits: mixed voltages. Strengths: brackets and cables included. Weaknesses: unclear size data. Skip it if you need ten ports.
4. Walrus Audio Canvas Power 5 Link
A five-output supply in a stainless steel case, 5.24 x 2.13 x 1.02 inches and 186 grams. The set includes five 18 inch straight-to-right-angle DC cables, a 12 inch link cable, a bracket set and a hex key. The current field contains an obvious error, so we do not repeat it.
Suits: a tidy small board. Strengths: a link cable and brackets. Weaknesses: five outputs only. Skip it if you want 12V or 18V outputs.
View Walrus Audio Canvas Power 5 Link on Amazon
5. Donner DP-Z
An aluminum-alloy supply with 10 isolated outputs plus a USB charge port: four 9V at 100 mA, three 9V at 300 mA, one 9V at 500 mA, one 9V or 12V at 500 mA and one 18V at 300 mA. The maker lists independent short-circuit protection and a blue LED bar. The title says 11 outputs, counting the USB port.
Suits: many varied pedals. Strengths: 10 outputs and a USB port. Weaknesses: mostly lower current ports. Skip it if you run several high-current digital units.
View Donner DP-Z 9V Guitar Pedal Power Supply, 11 Isolated Outputs and USB Port on Amazon
6. Gator GTR-PWR-8
An eight-output isolated supply with 4 to 9V, 9 or 12V, 9 or 18V and 12V AC options, a combined 1600 mA and a switchable 115V or 240V input. The all-metal housing has mounting slots and an LED on/off switch. It comes with DC cables, a polarity inverter and a voltage doubler, and weighs 4.9 pounds.
Suits: a travelling rig. Strengths: many adapters included. Weaknesses: heavier than the mini bricks. Skip it if weight matters most.
Setup Tips
- Add up the current each pedal needs and compare it with each output.
- Check the polarity and voltage printed on every pedal before plugging in.
- Use the brackets to fix the unit under the board.
- Keep spare cables for pedals that need a splitter.
Mistakes to Avoid
- Plugging a 9V pedal into an 18V setting.
- Ignoring the current each output can give.
- Trusting a generic size field over the bullets.
- Daisy-chaining pedals that draw a lot of current.
Pedal Power Supplies FAQ
Which supply has the most outputs?
The Voodoo Lab Pedal Power 3 PLUS lists 12 outputs, and it can link to more units.
Which ones offer 18V?
The MXR, Truetone, Donner and Gator list an 18V option.
The Short Version
For a tiny brick, the MXR Mini Iso-Brick. For 12 outputs, the Voodoo Lab Pedal Power 3 PLUS. For mixed voltages, the Truetone CS7. For a neat five-output set, the Walrus Canvas Power 5 Link. For a USB port too, the Donner DP-Z. For many adapters, the Gator GTR-PWR-8.
