The 10 Best Pedal Power Supplies in 2026 (Isolated & Honest)
Gear Guides · Meshplugins.com
Power is the least sexy purchase on your board and the source of half its problems: hum, whine, dying digital pedals, mystery gremlins. The fix has a name — isolated outputs — and the market now offers it from $106 to boutique. Here's the honest math on powering pedals.
The honest physics
SILENCE IS ISOLATED
Ground loops between pedals cause the hum. Isolated outputs break the loops. That's the entire secret
Ten picks, ranked and priced, with the honest logic behind each one.
Related: every piece of studio gear, ranked - The Bibles, the 10 best pedalboards and the 10 best hum eliminators.
The 10 best pedal power supplies
1. Truetone 1 SPOT Slim — the honest starter
The famous wall-wart, slimmed: 9V, plenty of mA, daisy-chains a handful of ANALOG pedals silently. Not isolated - but for three drives and a tuner, it's all many boards ever need at $28.
Check the price at Sweetwater → · $27.99
2. Voodoo Lab Pedal Power 3 Plus — the modern benchmark
The industry-standard family, current generation: twelve fully isolated outputs, high-current taps for hungry digital pedals, courtesy USB and AC outlets. Buy once, power every board you'll ever build.
Check the price at Sweetwater → · $279.99
3. Roland PSA-120S — the OEM staple
The adapter Boss pedals were designed around: correct polarity, regulated, reliable for decades. Every drawer should hold one - it's the universal donor of 9V power.
Check the price at Sweetwater → · $39.99
4. Voodoo Lab Pedal Power X8 — the compact isolator
Voodoo Lab's small-board answer: eight isolated high-current outputs in a chassis that hides under a Nano+. Modern digital-heavy mini-boards, powered properly.
Check the price at Sweetwater → · $169.99
5. Strymon Zuma — the low-profile flagship
Nine 500mA isolated outputs in the thinnest serious chassis made - built by the company whose pedals demand good power. Chains expansion units (Ojai) when your board inevitably grows.
Check the price at Sweetwater → · $279
6. CIOKS DC7 — the pro standard
The touring-rig favorite: seven outputs each switchable 9/12/15/18V, 660mA available, 5mm thin, and a USB-C out for HX Stomp-class devices. The most flexible power per millimeter in the industry.
Check the price at Sweetwater → · $289
7. Truetone 1 SPOT Pro CS6 — the affordable isolation
Truetone's grown-up unit brings real isolation to six outputs with 9/12/18V options at $170. The sensible first isolated brick for mid-size boards.
Check the price at Sweetwater → · $169.99
8. Walrus Audio Canvas Power HP — the boutique brick
Walrus applies its design eye to power: high-current isolated outs, clean aesthetics, thoughtful mounting. For boards where every component is chosen, not just accumulated.
Check the price at Sweetwater → · $229.99
9. MXR Iso-Brick Mini — the mini isolator
Five genuinely isolated outputs in a box the size of a phone at $106 - the cheapest real isolation on the market. Mini-board owners: this is your answer.
Check the price at Sweetwater → · $105.99
10. CIOKS SOL — the compact CIOKS
The DC7's little sibling: five adjustable isolated outputs, same 5mm profile, same Scandinavian build quality. Small board, zero compromise.
Check the price at Sweetwater → · $214
Quick compare
| Supply | Outputs | Price |
|---|---|---|
| Truetone 1 SPOT Slim | 1 out + daisy | $27.99 |
| Voodoo Lab Pedal Power 3 Plus | 12 isolated | $279.99 |
| Roland PSA-120S | 1 out | $39.99 |
| Voodoo Lab Pedal Power X8 | 8 isolated, high-current | $169.99 |
| Strymon Zuma | 9 isolated, high-current | $279 |
| CIOKS DC7 | 7 isolated, adjustable | $289 |
| Truetone 1 SPOT Pro CS6 | 6 isolated | $169.99 |
| Walrus Audio Canvas Power HP | High-power isolated | $229.99 |
| MXR Iso-Brick Mini | 5 isolated | $105.99 |
| CIOKS SOL | 5 isolated, adjustable | $214 |
How to choose
Do the mA math before anything. Analog drives sip 10-50mA; digital delays, reverbs and modelers gulp 200-500mA. Add your board's total, then buy 20-30% headroom. An underpowered digital pedal doesn't just hum - it glitches, resets and dies on stage.
Isolated outputs are the upgrade; voltage flexibility is the future-proofing. Shared-ground daisy chains hum when digital meets analog. Fully isolated bricks (everything here from the X8 up) end it. The 9/12/18V switching (CIOKS, CS6) matters the day you buy that one 18V pedal - check your collection's needs now.
The honest part
If your board is three analog drives, a $28 1 SPOT genuinely powers it silently - isolation solves problems you may not have yet. The moment one digital pedal joins, the math changes, and the $106 Iso-Brick Mini becomes the best money on your board. What nobody says: bad power DAMAGES pedals slowly (brownouts stress digital units), so the expensive brick is partly insurance on everything it feeds. Power is the last thing you should cheap out on - and the first thing everyone does.
FAQ
Why does my pedalboard hum?
Most often: shared-ground power (daisy chain) creating ground loops between digital and analog pedals. Isolated outputs break the loop. Second suspects: cheap unregulated adapters and power cables running parallel to audio cables.
What does 'isolated output' actually mean?
Each output has its own transformer winding - electrically separate grounds - so pedals can't create loops or inject noise into each other. It's the defining feature worth paying for.
Can I daisy-chain digital pedals?
Technically sometimes, practically don't: they're noisy neighbors and current-hungry. Digital pedals get their own isolated, high-current outputs. Analog drives are the only good daisy-chain citizens.
What voltage do my pedals need?
90% run 9V DC center-negative. But check every label: some want 12V or 18V (more headroom), a few are positive-tip, and wrong voltage/polarity can kill a pedal instantly. The adjustable supplies exist for exactly this.
Sources
Sweetwater pedal power category · Voodoo Lab official site · CIOKS official site
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Ivan Meshcheriakov · IvanFromRnD
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