Best Professional Pedal Power Supply (2026): 5 Picks Compared
Updated Oct 30, 2026 · By 
Jonah Mercer · Ranked from listed specifications · How we rank
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The Klowra Vires leads this search with 6 fully isolated outputs and a 24V expansion port, the combination that decides a professional pedalboard supply. Isolated outputs give each pedal its own feed, and the 24V port adds room for expansion units as a board grows.
The picks at a glance
Which one should you buy?
- Players who want 6 isolated outputs with 9V, 12V and 18V options: Klowra Vires Dual-Isolated Guitar Pedal Power Supply See pick 1
- Players who want 8 isolated outputs with a SAG feature: Voodoo Lab Pedal Power 2 Plus Isolated See pick 2
- Players who want 10 isolated outputs across 9V, 12V and 18V pedals: Donner DP-2 Guitar Pedal Power Supply See pick 3
- Players who want 9 outlets for 9V, 12V and 18V pedals: Strymon Zuma 9-output Guitar Pedal Power Supply See pick 4
- Players who want 5 high-current outputs for 9V pedals: Strymon Ojai 5-Output High Current Guitar Pedal See pick 5
Want the full range? Best Pedal Power Supply ranks the top pedal power supplies for every buyer, or browse all 19 guides.
The 5 picks, ranked
1Best Overall
Klowra Vires Dual-Isolated Guitar Pedal Power Supply
- Outputs: 6
- Isolated outputs
- Max current per output: 1500 mA
- 1-year warranty stated
It earns Best Overall with 6 fully isolated outputs, 9V, 12V and 18V options, and a 24V expansion port for growing pedalboards.
Who it suits
- Players who want 6 isolated outputs with 9V, 12V and 18V options
- Players building a pedalboard with high-demand digital effects
Skip it if
- You want more than 6 isolated outputs
- You want a warranty longer than 1 year
Four outputs give 9V 500mA for standard stompboxes, and two adjustable outputs cover 9V, 12V and 18V modes. A polarity reversal cable is included for expanded compatibility. The 24V 1500mA center-positive port powers compatible expansion units, and the unit switches between 100V and 240V input. It carries a 1-year warranty.
2Runner-Up
Voodoo Lab Pedal Power 2 Plus Isolated
- Isolated outputs
- Max current per output: 100 mA
- 5-year warranty stated
It earns Runner-Up with 8 isolated outputs, a SAG feature, and a 200-watt courtesy AC outlet for extra devices.
Who it suits
- Players who want 8 isolated outputs with a SAG feature
- Players who want a courtesy AC outlet for extra devices
Skip it if
- You want more than 8 isolated outputs
- You want a warranty longer than 5 years
Power cables are included. Four outputs give 9V 100mA and switch to 12V, two give 9V 250mA and switch to 12V, and two add a SAG feature that simulates a low battery. Outputs combine for 18V and 24V operation with currents up to 500mA, using doubler cables sold separately. It carries a 5-year warranty.
3Also Great
Donner DP-2 Guitar Pedal Power Supply
- Isolated outputs
- Max current per output not stated in the listing
- 1-year warranty stated
It earns Also Great with 10 isolated DC outputs for 9V, 12V and 18V pedals, plus short-circuit and overcurrent protection.
Who it suits
- Players who want 10 isolated outputs across 9V, 12V and 18V pedals
- Players who want short-circuit and overcurrent protection built in
Skip it if
- You want more than 10 isolated outputs
- You want a warranty longer than 1 year
The 10 isolated DC outputs cover 9V, 12V and 18V effect pedals, with an AC input of 100V to 240V. Short-circuit and overcurrent protection are built in. It carries a 1-year warranty.
4Also Great
Strymon Zuma 9-output Guitar Pedal Power Supply
- Isolated outputs not stated in the listing
- Max current per output not stated in the listing
- 2-year warranty stated
It earns Also Great with 9 outlets for 9V, 12V and 18V pedals and a 2-year warranty.
Who it suits
- Players who want 9 outlets for 9V, 12V and 18V pedals
- Players who want a 2-year warranty on a 9-output supply
Skip it if
- You want more than 9 outputs
- You want a warranty longer than 2 years
The Zuma gives 9 outlets for 9V, 12V and 18V effects pedals. It is built as a worldwide power supply. It weighs 2.5 lb and carries a 2-year warranty.
5Also Great
Strymon Ojai 5-Output High Current Guitar Pedal
- Isolated outputs not stated in the listing
- Max current per output not stated in the listing
- 2-year warranty stated
It earns Also Great with 5 high-current outputs for 9V pedals in a 1.5 lb unit.
Who it suits
- Players who want 5 high-current outputs for 9V pedals
- Players who want a 2-year warranty on a 5-output supply
Skip it if
- You want more than 5 outputs
- You want 12V or 18V outputs for some pedals
The Ojai gives 5 outputs for 9V effects pedals, built as a high-current supply. It weighs 1.5 lb and carries a 2-year warranty.
Side by side
| Product | Outputs | Isolated outputs | Max current per output | Weight | Warranty |
|---|---|---|---|---|---|
| Klowra Vires Dual-Isolated Guitar Pedal Power Supply | 6 | Yes | 1500 mA | 1 lb | 1-year |
| Voodoo Lab Pedal Power 2 Plus Isolated | Not stated | Yes | 100 mA | 3.1 lb | 5-year |
| Donner DP-2 Guitar Pedal Power Supply | Not stated | Yes | Not stated | Not stated | 1-year |
| Strymon Zuma 9-output Guitar Pedal Power Supply | Not stated | Not stated | Not stated | 2.5 lb | 2-year |
| Strymon Ojai 5-Output High Current Guitar Pedal | Not stated | Not stated | Not stated | 1.5 lb | 2-year |
How we ranked these pedal power supplies
Every pick ranks in Amazon's best-seller list for its category and has a listing with real specifications. The order mixes two things: how each model compares on the specs below (higher share of the best value in this group scores more), and how widely it is bought. The spec score runs from 9.0 to 9.8 and only compares these picks with each other. A spec the listing does not state is left out and the other specs are re-weighted; a listing with fewer than 2 stated specs is scored at half. We do not test gear in person. Full method.
- Outputs weight 2
- Isolated outputs weight 2
- Max current per output weight 1
Buying advice: professional pedal power supply
Count outputs and match voltages
Start by counting the pedals on the board, then match each pedal to an output with the right voltage. The Klowra Vires gives 6 outputs, the Voodoo Lab Pedal Power 2 Plus gives 8, the Donner DP-2 gives 10, the Strymon Zuma gives 9 and the Strymon Ojai gives 5. The Klowra Vires, the Donner DP-2 and the Strymon Zuma cover 9V, 12V and 18V pedals, while the Strymon Ojai covers 9V pedals.
Isolated outputs cut noise between pedals
Isolated outputs give each pedal its own feed, which helps keep ground loop noise and hum out of the signal. The Klowra Vires, the Voodoo Lab Pedal Power 2 Plus and the Donner DP-2 have isolated outputs. The Klowra Vires pairs its isolated outputs with separate filtering modules for each channel.
Check current before adding demanding pedals
Each output has a current limit, and a pedal that draws more than that limit will not run right on it. The Klowra Vires gives up to 1500mA on one output, the Voodoo Lab Pedal Power 2 Plus gives 100mA or 250mA per output, and the Strymon Ojai is a high-current supply for 9V pedals. The Klowra Vires also adds a 24V expansion port for compatible expansion units as a board grows.
Frequently asked questions
How many outputs does a pedalboard power supply need?
Count the pedals on the board and leave a spare output for the next pedal. The Donner DP-2 gives 10, the Strymon Zuma gives 9, the Voodoo Lab Pedal Power 2 Plus gives 8, the Klowra Vires gives 6 and the Strymon Ojai gives 5.
What does an isolated output do?
An isolated output gives one pedal its own feed, separate from the other pedals on the board. That separation helps keep ground loop noise and hum out of the signal.
Can a supply power 9V, 12V and 18V pedals?
Yes, if it covers all three voltages. The Klowra Vires, the Donner DP-2 and the Strymon Zuma cover 9V, 12V and 18V pedals, while the Strymon Ojai covers 9V pedals.
How long is the warranty on these supplies?
The Klowra Vires and the Donner DP-2 carry a 1-year warranty, the Strymon Zuma and the Strymon Ojai carry a 2-year warranty, and the Voodoo Lab Pedal Power 2 Plus carries a 5-year warranty.
Gear that goes with it
Best PedalboardTop pick: SOYAN 18" x 11.8" Guitar Pedal Board
Best Guitar PedalTop pick: Donner Tuner Pedal
Best Guitar CordTop pick: JSAUX Guitar Cable 10 ftMore pedal power supplies guides
Specifications and availability come from each Amazon listing on Oct 30, 2026 and can change. Check the listing before you buy.