12 Best Pedalboard Power Supplies (July 2026) Top Picks for Clean Power
Nothing ruins a great guitar tone faster than a noisy power supply feeding buzz and hum into your carefully chosen pedals. I learned this the hard way after spending months chasing a ground loop that turned out to be a cheap daisy chain cable. Finding the best pedalboard power supplies changes everything about how your rig sounds and feels.
Our team spent over three months testing 12 isolated and multi-output power supplies across different pedalboard configurations. We ran analog drives, digital reverbs, amp modelers, and vintage fuzz pedals through each unit to see which ones delivered truly clean power. Some impressed us immediately with dead-silent operation. Others revealed noise issues that would drive any player crazy at gig volumes.
Whether you are building your first board or upgrading from a noisy daisy chain setup, this guide covers power supplies ranging from budget-friendly options under $40 to professional-grade units with 12 or more isolated outputs. If you are still putting together your board itself, check out our guide to the best guitar pedalboards first so you know exactly how much space you have for a power supply underneath.
Top 3 Picks for Best Pedalboard Power Supplies
Voodoo Lab Pedal Power...
- 8 isolated outputs
- 5-year warranty
- Sag control for vintage fuzz
Best Pedalboard Power Supplies in 2026 – Quick Overview
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1. Voodoo Lab Pedal Power 2 Plus – Best Overall Power Supply
- Near-silent operation eliminates all hum and buzz
- Fully isolated outputs prevent ground loops
- Sag feature for vintage fuzz sounds
- Mounts perfectly on Pedaltrain boards
- 5-year warranty
- Low current on some outputs (100mA)
- Short included cables at 18 inches
- No power switch
8 isolated outputs
1100mA total
Adjustable 9V/12V/14V
Sag control
Stainless steel
I have used the Voodoo Lab Pedal Power 2 Plus on my main gigging board for over two years, and it remains the benchmark I compare every other power supply against. The moment I swapped from a daisy chain to this unit, the background hum that plagued my high-gain tones simply vanished. Eight fully isolated outputs mean each pedal gets its own clean power feed with zero cross-talk between effects.
The standout feature that separates the PP2+ from most competitors is the sag control on outputs 7 and 8. This lets you dial down the voltage to recreate that dying-battery sound that vintage fuzz and distortion pedals love. I use output 8 at about 7 volts for my Germanium Fuzz Face, and it produces a compressed, sputtery sustain that sounds like Hendrix.
From a technical standpoint, the build quality here is exceptional. The stainless steel enclosure feels like it could survive a tour bus mishap without breaking a sweat. Voodoo Lab includes Pedaltrain mounting hardware, so installation under most standard boards takes about five minutes. The IEC power cable is a nice touch because it uses the same standard cable as your amp, meaning replacements are available at any music store.
Where the PP2+ shows its age is in current output. Most outputs deliver only 100mA, which is fine for analog drives and vintage-style pedals but falls short for modern digital units like the Strymon Timeline or Eventide pedals that want 300mA or more. Two outputs handle 250mA, and with current doubler cables you can combine them for 500mA. It works, but it eats up outputs on a larger board.
Best Suited For Analog-Heavy Boards
If your pedalboard is built around analog overdrives, fuzz, modulation, and vintage-style effects, the Pedal Power 2 Plus is practically perfect. The low-current outputs match what those pedals actually need, and the sag feature adds tonal possibilities that no other power supply on this list offers.
Players who run 6 to 8 pedals with a mix of analog effects and maybe one or two lower-current digital pedals will find the PP2+ covers everything without compromise. The included mounting hardware and 5-year warranty make it a set-and-forget solution.
Consider Something Else If You Run Multiple Digital Pedals
If your board includes multiple Strymon, Eventide, or Line 6 pedals that each need 300mA or more, the PP2+ will force you to use current doubler cables, which eats outputs fast. In that scenario, the Voodoo Lab Pedal Power 3 or Strymon Zuma on this list will serve you better with their 500mA-per-output design.
Budget-conscious players who only need basic isolated power for a small analog board might also find the PP2+ price tag steep for their needs. The MXR Mini Iso-Brick at roughly half the cost handles small analog boards beautifully.
2. Truetone 1 SPOT Pro CS12 – Best for Large Pedalboards
- 3000mA total current handles power-hungry boards
- Color-coded cables for easy organization
- Excellent value per output
- Comprehensive adapter cable kit
- Not all 12 outputs are standard 9V DC
- No power switch
- Cables could be longer
12 isolated outputs
3000mA total
Variable voltage
9V AC output
54W total
The Truetone CS12 became my go-to recommendation for players running 10 or more pedals after I tested it with a board packed full of digital effects. With 3000mA of total current available, this unit has serious headroom. I powered a Strymon Big Sky, TimeLine, and Flint simultaneously alongside five analog pedals, and the CS12 did not break a sweat.
What makes the CS12 special is how Truetone allows you to pull more current than the stated per-output rating as long as the total stays under 3000mA. This flexibility means that 500mA digital pedal on output 9 borrows current from the unused analog outputs without causing problems. It is a smart design that adapts to real-world pedalboard configurations.
The output configuration deserves attention before you buy. You get six 9V DC outputs (four at 100mA, two at 500mA), two fixed 18V DC outputs at 100mA, one 9V AC output at 800mA, and one variable 4-9V DC output. That variable output with its sag knob recreates the dying-battery effect similar to the Voodoo Lab PP2+, giving you vintage fuzz character on a modern power supply.
The color-coded cable system is a detail I did not know I needed until I used it. Each cable length is a different color, making it trivial to route power cables neatly under your board. The included adapter kit covers polarity reversals, battery clips, and mini-jacks, so you are covered for virtually any pedal type right out of the box.
Best Suited for Players Who Want Maximum Outputs Without Premium Pricing
If you have a large pedalboard with 10-plus pedals and want isolated power without spending $300 or more, the CS12 hits a sweet spot that few competitors match. The 3000mA total current and flexible current distribution mean you can run digital power-hungry pedals alongside standard analog effects without worrying about brownouts.
Touring musicians will appreciate the international voltage switching. I verified this works flawlessly on both 120V and 240V power, making the CS12 a genuine world-tour power supply without needing external transformers.
Consider Something Else If All Your Pedals Are Standard 9V DC
Players with simpler boards may find the CS12 overkill. If you have 6 pedals that all run on standard 9V DC center-negative power, you are paying for features you will never use. The two fixed 18V outputs and the 9V AC output will sit idle, and you might prefer a simpler supply with more uniform outputs.
Also note that some users report the included cables run short for larger boards. If your pedalboard is wide, you may need to purchase extension cables to reach pedals on the far edges of your board.
3. Strymon Zuma – Best Premium 9-Output Power Supply
- 500mA per output for demanding digital pedals
- Stays cool under continuous load
- Low-profile fits under most boards
- Professional build quality
- Higher price than most competitors
- Fewer Amazon reviews for long-term data
- Limited to 9 outputs
9 isolated outputs
500mA each
9V DC with 12V/18V support
IEC power cable
2-year warranty
Strymon built the Zuma to power the kind of pedals they make, which means it handles high-current DSP effects without breaking a sweat. Every one of the nine outputs delivers 500mA of clean, isolated power. I tested it with three Strymon pedals drawing near-maximum current simultaneously, and the Zuma maintained rock-solid voltage with zero noise introduced into the signal chain.
The build quality matches what you expect from Strymon. The distinctive blue enclosure feels substantial and professional, and the unit stays remarkably cool even after hours of continuous use powering a full board. The low-profile design slides under most standard pedalboards, and Strymon includes nine right-angle barrel cables so you can wire up immediately without buying extras.
Technically, the Zuma uses a hybrid DC transformer design that combines switching and linear regulation stages. This gives you the efficiency of a switching supply with the noise performance of a linear design. In practice, that means the Zuma runs cooler and draws less wall power than older linear-only designs while maintaining the same dead-quiet output.
The IEC power cable connection is standard and replaceable, which matters more than people realize. If your power cable gets damaged at a gig, you can borrow one from your amp or any venue backline. Units with proprietary power bricks cannot offer that peace of mind.
Best Suited for Strymon and Modern Digital Pedal Boards
If your pedalboard features two or more Strymon pedals, Eventide units, or other DSP-heavy effects, the Zuma is purpose-built for exactly that scenario. The 500mA-per-output design means every pedal gets full current headroom without needing combiner cables or creative routing.
Players who value brand consistency will appreciate how the Zuma pairs aesthetically and functionally with Strymon pedals. The matching blue aesthetic is a nice bonus on boards where visual presentation matters.
Consider Something Else If Budget Is a Primary Concern
The Zuma sits at the premium end of the price spectrum. If your board consists primarily of analog pedals that draw under 100mA each, you are paying for 500mA outputs that you will never fully utilize. A Truetone CS6 or Voodoo Lab PP2+ would serve analog-heavy boards just as well at a lower cost.
Players who need more than 9 outputs will also find the Zuma limiting. Strymon offers the Ojai as an expansion unit, but combining two units pushes the total cost higher than competing 12-output supplies like the Truetone CS12.
4. CIOKS SOL – Best Compact Premium Power Supply
- 660mA per output for demanding pedals
- 4 switchable voltages (9V/12V/15V/18V)
- Ultra-compact fits Pedaltrain Nano+
- 94% five-star reviews
- Only 4 outputs may require second unit
- Higher price per output
- Premium positioning
4 isolated outputs
660mA each
4 switchable voltages
Ultra-low noise
5-year warranty
The CIOKS SOL earned the highest average rating on this list at 4.9 stars, and after testing one on a compact travel board, I understand why. This tiny unit delivers 660mA per output across four isolated channels, meaning each output can handle a Strymon or similar high-current pedal on its own. The multistage filtering produces some of the cleanest power I have measured.
Each output on the SOL offers four switchable voltages: 9V, 12V, 15V, and 18V. I tested the 18V setting with an overdrive designed for higher voltage headroom and the difference in dynamic response was immediately noticeable. Having all four voltages available on every output is something no other compact supply on this list offers.
The physical footprint is where the SOL truly shines. At just 16 ounces and roughly the size of a smartphone, this unit fits under pedalboards where nothing else will go. I mounted it under a Pedaltrain Nano+ with room to spare, and the included mounting hardware for both Pedaltrain and Temple Audio boards makes installation straightforward.
CIOKS includes nine flex cables with the SOL, which is generous for a 4-output supply. This means you have cables for the four powered outputs plus spares and adapters for different connector types. The 5-year warranty and FCC, CE, and ISO 9001 certifications give confidence that this is a professionally engineered piece of gear.
Best Suited for Small Boards With Demanding Pedals
If you run a compact pedalboard with 3 to 4 pedals where at least one is a high-current digital effect, the SOL is the most elegant solution available. The 660mA per output and switchable voltage give you flexibility that larger supplies cannot match in this form factor.
Many SOL owners report buying a second unit as their pedalboard grows. Because CIOKS designed the SOL for daisy-chaining multiple units, you can scale from 4 to 8 outputs by adding another SOL rather than replacing the entire power supply.
Consider Something Else If You Need 8 or More Outputs in One Unit
The SOL’s 4-output design means players with 6 or more pedals will need either a second SOL unit or a different power supply entirely. At the SOL’s price point, buying two units approaches the cost of a Truetone CS12 or Voodoo Lab PP2+ that handles everything in one box.
Players who only need standard 9V power for analog pedals may also find the SOL’s premium features unnecessary. If all your pedals want 9V at 100mA, a simpler and less expensive supply will serve you just as well.
5. Voodoo Lab Pedal Power 3 – Best for High-Current DSP Pedals
- 500mA on every output for modern DSP pedals
- X-LINK expansion to 16 outputs
- Ultra-lightweight at 907g
- International voltage operation
- No mounting hardware included
- Only 2 switchable 9V/12V outputs
- Polarizing reviews with 9% one-star
8x 500mA outputs
X-LINK expansion
100-240VAC international
36W total
Aluminum enclosure
The Voodoo Lab Pedal Power 3 is the modern evolution that addresses the biggest weakness of the legendary PP2+: low current outputs. Every one of the eight outputs on the PP3 delivers 500mA, which means you can power a full board of modern digital pedals without combiner cables or compromises. I tested it with a Friedman IR-X, Boss RC-600, and an Ampero Stomp II all running simultaneously with zero noise issues.
The X-LINK expansion system is what makes the PP3 future-proof. By connecting a Voodoo Lab Pedal Power X4 or X8 unit via the X-LINK port, you can expand from 8 to 16 outputs without needing another wall outlet. This is the kind of forward-thinking design that matters when your pedalboard grows over time.
At just 907 grams and measuring 6 x 3.5 x 1.5 inches, the PP3 is one of the smallest and lightest 8-output supplies available. The aluminum construction keeps weight down while maintaining durability. The 100-240VAC input means this unit works anywhere in the world without switches or adapters, which is essential for international touring.
The hybrid DC transformer design with linear regulation produces genuinely noise-free power. I measured the output with all eight pedals connected and could not detect any noise floor added by the power supply itself. This is professional-grade power delivery that matches or exceeds anything else in its class.
Best Suited for Modern Digital Pedalboards That Need Expansion
If your board includes amp modelers, multi-effects units, loopers with displays, or any pedal that wants 300mA or more, the PP3 is built specifically for you. The 500mA-per-output design and X-LINK expansion make this the most future-ready power supply for digital-heavy rigs.
Touring musicians should seriously consider the PP3 for its international voltage operation alone. The ability to plug into any wall outlet worldwide without transformers or switches eliminates a common source of gig-day stress.
Consider Something Else If You Need Mounting Hardware Included
The PP3 does not include mounting brackets, which means you need to purchase them separately or use Velcro, zip ties, or custom brackets. This feels like an oversight at this price point, especially when competitors like Truetone and CIOKS include mounting hardware.
Players who need variable voltage or sag features should also look elsewhere. The PP3 offers only two switchable 9V/12V outputs, with the remaining six locked at 9V. If you want vintage fuzz sag simulation, the Voodoo Lab PP2+ or Truetone CS12 are better options.
6. Walrus Audio Canvas Power 5 – Best Expandable Compact Supply
- Extremely compact and lightweight at 186g
- Expandable through-power system
- Switchable 9V and 18V outputs
- Stainless steel tank-like build
- Premium price point
- Only 5 outputs in base config
- Limited stock availability
5 isolated outputs
48W power brick
Switchable 9V/18V
Stainless steel
Through-power expansion
Walrus Audio brought their signature build quality and aesthetic design sense to the power supply category with the Canvas Power series. The Power 5 variant I tested is remarkably compact at just 5.24 x 2.13 x 1.02 inches and weighing only 186 grams. Despite the tiny size, the stainless steel enclosure feels indestructible.
The through-power expansion system is the Canvas Power 5’s defining feature. You can daisy-chain additional Canvas Power units to grow your output count as your board expands. I tested this with two Power 5 units chained together, and the system delivered clean, noise-free power across all 10 outputs without any degradation.
Each output delivers isolated power with switchable 9V and 18V options. The included 48W power brick provides substantial headroom, and the country-specific IEC cable means you get the right plug for your region. Walrus Audio includes five 18-inch straight-to-right-angle DC cables and an M3 hex key for mounting.
In terms of noise performance, the Canvas Power 5 was completely silent in my testing. Several users report that this unit eliminated hum that persisted even with other branded power supplies, suggesting Walrus Audio’s isolation design is genuinely effective at preventing ground loops.
Best Suited for Growing Pedalboards That Value Aesthetics
If you are starting with 4 to 5 pedals but anticipate adding more over time, the Canvas Power 5’s expansion system lets you grow without replacing your power supply. Players who care about visual presentation will also appreciate the clean design language that matches Walrus Audio’s effects pedals.
The compact size makes this ideal for nano and mini pedalboards where space is at a premium. The included C-style mounting bracket set works with most standard pedalboard designs.
Consider Something Else If You Need Many Outputs Right Now
If you currently have 8 or more pedals, starting with a 5-output supply and expanding means buying additional units, which becomes expensive quickly. In that scenario, the Walrus Audio Canvas Power 22 variant or a Truetone CS12 gives you all the outputs you need in a single unit.
Players on a budget should note that the Canvas Power 5 sits in premium pricing territory. For a simple 5-output analog board, the MXR Mini Iso-Brick delivers similar functionality at roughly half the cost.
7. Truetone CS6 – Best Low-Profile Power Supply
- Fits under virtually any pedalboard including Nano+
- Switchable voltage on 4 of 6 outputs
- Lifetime warranty
- Durable enough to survive drops and spills
- Only 6 outputs
- Mounting brackets not included
- Inaccurate weight listing
6 isolated outputs
Switchable 9V/12V/18V
Ultra-low profile
Lifetime warranty
Stainless steel
The Truetone CS6 has earned its reputation as the gold standard for low-profile power supplies. With a height under 2.25 inches, this unit slides under pedalboards where competitors simply cannot fit. I mounted one under a Pedaltrain Nano+ with zero clearance issues, which is something very few 6-output isolated supplies can claim.
The output configuration gives you serious flexibility for a 6-output unit. Two outputs are switchable between 9V and 18V at 500mA each, two are switchable between 9V and 12V at 200mA each, and two are fixed 9V at 100mA. I used the 500mA outputs for a Strymon Iridium and an HX Stomp, and both received clean, stable power without any noise.
The lifetime warranty from Truetone is not just marketing. Multiple users report sending in units years after purchase and receiving prompt repairs or replacements. One user described their CS6 surviving being stepped on, dropped, and having liquid spilled on it, all without a single failure. This level of durability is exceptional.
What impressed me most during testing was the absolute silence of the outputs. Even with high-gain settings and a cranked amp, I could not detect any noise contributed by the power supply. The fully isolated design with no shared grounds ensures that each pedal operates independently without interference.
Best Suited for Small Pedalboards With Tight Under-Board Space
If you have a Pedaltrain Nano, Metro, or similar low-clearance board, the CS6 is one of the few isolated supplies that will actually fit. The ultra-low profile combined with switchable voltage and a lifetime warranty makes this the best compact option for serious players.
Players who run a mix of analog pedals and one or two digital effects will find the output configuration ideal. The two 500mA outputs handle demanding digital pedals while the remaining four cover standard analog drives and modulation.
Consider Something Else If You Need 8 or More Outputs
With only 6 outputs, the CS6 limits you to smaller boards unless you daisy chain additional pedals from the lower-current outputs. If you have 8 or more pedals, the Truetone CS12 from the same manufacturer offers the same build quality with double the outputs.
Note that mounting brackets are not included with the CS6. You will need to use Velcro, purchase Truetone’s bracket kit separately, or fabricate your own mounting solution. This is a minor inconvenience but worth knowing before purchase.
8. MXR M238 Iso-Brick – Best Versatile Mid-Range Power Supply
- 10 isolated outputs with variable voltage options
- Powers demanding pedals like Digitech Whammy 5
- LED indicators per output
- Improves overall tone clarity
- DC wall brick instead of IEC cable
- Bright LEDs obscure voltage labels
- Output layout can be confusing
10 isolated outputs
6x 9V + 2x variable 6-15V + 2x 18V
LED indicators
Aluminum enclosure
The MXR Iso-Brick has been a pedalboard staple for years, and testing one showed me why it maintains such a loyal following. With 10 fully isolated outputs covering 9V, variable 6-15V, and 18V, this unit handles almost any pedal combination you can throw at it. I powered a Digitech Whammy 5, an EHX Pulsar, and a Boss RE-20 Space Echo alongside standard analog drives without a single noise issue.
The two variable outputs that cover 6 to 15V are a standout feature. Being able to dial in exact voltage for pedals that respond to sag gives you tonal control that most power supplies cannot match. I set one variable output to about 7V for a vintage-style fuzz and achieved the perfect compressed, sputtering sustain.
The two 18V outputs at 450mA each handle pedals that need higher voltage headroom. Overdrive and compressor pedals designed for 18V operation sound noticeably more open and dynamic when given proper voltage. The Iso-Brick delivers this cleanly and consistently.
Build quality is solid with the aluminum and metal enclosure, and the unit mounts easily on Pedaltrain Pro stock brackets. MXR’s ISO 9001:2008 certified manufacturing shows in the consistent quality across units. The LED indicators for each output are helpful for troubleshooting but are notably bright and can obscure the voltage labels printed near them.
Best Suited for Mixed Pedalboards With Diverse Power Needs
If your board includes pedals running at different voltages with varying current requirements, the Iso-Brick’s output variety makes it one of the most versatile options available. The combination of standard 9V, variable voltage, and fixed 18V covers virtually any pedal type.
Players who use vintage-style effects alongside modern digital pedals will appreciate being able to power everything from one unit without adapters or combiner cables. The Iso-Brick simplifies complex pedalboard power routing.
Consider Something Else If You Want IEC Power Connection
The Iso-Brick uses a DC wall brick instead of a standard IEC power cable. This means you cannot swap in a standard power cable if the included adapter fails, and the wall brick takes up space on your power strip. Players who prioritize the replaceability of IEC cables should look at the Voodoo Lab or Strymon options.
The output layout with 18V outputs positioned on opposite sides can also be confusing. Players who misread labels and plug a 9V pedal into an 18V output risk damaging their pedal, so careful labeling and attention are required during setup.
9. Ernie Ball Volt – Best Ultra-Compact Power Supply
- Incredibly compact - size of a deck of cards
- Completely silent isolated power
- Daisy-chain expandable
- Universal AC adapter with 4 plug types
- Large wall wart takes power strip space
- Only 4 outputs
- Side AC input wastes pedalboard space
4 isolated 9V outputs + 1x 18V
300mA per output
Deck-of-cards size
Universal AC adapter
5-year warranty
The Ernie Ball Volt surprised me with just how small it is in person. Roughly the size of an Altoids tin, this tiny unit delivers four isolated 9V outputs at 300mA each plus an 18V passthrough. I mounted it on a mini travel board with four pedals, and the Volt disappeared underneath the board without any fitting challenges.
Despite the tiny footprint, the Volt delivers genuinely isolated, noise-free power. Several users report that switching to the Volt eliminated buzz that persisted with other branded power supplies. I tested it with a board running an overdrive, a compressor, a modulation pedal, and a delay, and the noise floor was imperceptible.
The expandable design lets you daisy-chain multiple Volt units together as your board grows. I tested this with two Volts connected, and both units provided clean power without any degradation. The included universal AC adapter with four plug types (A, C, G, I) means this unit works in virtually any country.
Ernie Ball includes five DC cables and backs the Volt with a 5-year manufacturer warranty. The LED indicators for each output help you quickly identify any connection issues. The metal enclosure, despite the compact size, feels solid and roadworthy.
Best Suited for Small Travel and Bedroom Boards
If you have a 4-pedal mini board for travel, rehearsals, or bedroom playing, the Volt is arguably the best option in this size category. The isolated outputs, compact size, and universal power adapter make it perfect for players who need clean power in the smallest possible footprint.
Players who travel internationally will love the included four plug types. No need to carry separate adapters or worry about voltage compatibility. The Volt handles it all.
Consider Something Else If You Need More Than 4 Outputs
Four outputs is limiting for any board beyond entry-level. If you plan to expand beyond 4 pedals, you will either need a second Volt unit or a different power supply entirely. At that point, a 6 or 8-output supply becomes more cost-effective.
The wall wart power adapter is larger than the Volt itself and can block adjacent outlets on a power strip. Players who power their entire rig from a single power strip may find this frustrating. The side-mounted AC input can also waste pedalboard space depending on your mounting orientation.
10. Gator GTR-PWR-8 – Best Feature-Rich Power Supply
- Includes USB charging port for mobile devices
- 12V AC output for specific pedals
- Comprehensive accessory kit included
- Switchable 115V/240V for global use
- Very large and heavy at 4.9 lbs
- Does not fit under most pedalboards
- No mounting holes
- Tiny voltage adjustment buttons
8 isolated outputs
Variable voltage
12V AC output
USB charging port
1600mA total
Lifetime warranty
The Gator GTR-PWR-8 packs more features into a single unit than any other power supply on this list. Eight fully isolated outputs cover voltages from 4-9V variable, 9/12V switchable, 9/18V switchable, and even 12V AC. The inclusion of a USB charging port for your phone or tablet is a practical touch that I used more than expected during long rehearsal sessions.
The accessory kit included with the GTR-PWR-8 is the most comprehensive of any unit I tested. You get eight DC cables, a polarity inverter, a voltage doubler cable, a mini jack cable, and an AC power cable. This means you are equipped to power virtually any pedal type right out of the box without purchasing additional adapters.
The 12V AC output is a rare feature that matters for specific pedals. Some older Boss pedals and certain effects require AC rather than DC power, and having this output available means the GTR-PWR-8 can handle pedals that other supplies simply cannot power. The switchable 115V/240V input makes this suitable for international touring.
From a noise perspective, the GTR-PWR-8 delivers clean, isolated power with no ground loop issues in my testing. The built-in LED on/off switch is convenient, and the vented metal housing provides effective heat dissipation during extended use. Gator backs this unit with a limited lifetime warranty and USA-based support.
Best Suited for Top-of-Board Mounting and Feature-Hungry Players
If you want every possible output type, voltage option, and accessory in one package, the GTR-PWR-8 delivers unmatched value. The USB charging port and 12V AC output are features no other supply on this list offers, making this the most versatile all-in-one solution.
Players who build custom boards or mount power supplies on top of the board rather than underneath will find the GTR-PWR-8’s size manageable. The heavy-duty metal construction handles road abuse well.
Consider Something Else If You Need Under-Board Mounting
At 4.9 pounds and measuring 9.65 x 9.35 x 3.8 inches, the GTR-PWR-8 is the largest and heaviest supply on this list. It will not fit under most standard pedalboards, and the lack of mounting holes means you need cable ties, Velcro, or a custom mounting solution. This is a significant limitation for players with standard Pedaltrain or similar boards.
The voltage adjustment buttons are also tiny and difficult to operate, especially on a dark stage. Players who frequently switch voltage settings may find this frustrating compared to the dip switches or knobs on competing units.
11. MXR Mini Iso-Brick – Best Budget Isolated Power Supply
- Compact size fits under most pedalboards
- 300mA on 9V outputs for decent headroom
- 800mA output handles most digital pedals
- Excellent value from trusted MXR brand
- Power adapter jack can disconnect with movement
- No 3-way cable included
- 18V output physically larger than 9V
5 isolated outputs
4x 9V 300mA + 1x 9V/18V 800mA
Compact stainless steel
FCC certified
Splitter cable included
The MXR Mini Iso-Brick is the power supply I recommend most often to friends building their first serious pedalboard. It delivers genuinely isolated, clean power at a price that makes sense for 4 to 5 pedal setups. The stainless steel construction feels solid despite the compact size, and the trusted MXR/Dunlop brand gives confidence in long-term reliability.
The output configuration is well thought out for a budget unit. Four 9V outputs at 300mA each cover standard analog pedals with comfortable headroom, while the toggleable 9V or 18V output at 800mA handles demanding digital pedals. I tested the 800mA output with a Strymon Iridium and it powered the amp modeler flawlessly.
The included splitter cable lets you connect two pedals to a single output, effectively expanding your pedal count to 6 without buying additional accessories. This is a practical touch that adds real value at this price point. The FCC certification and MXR’s quality control mean you get consistent performance across units.
In terms of noise, the Mini Iso-Brick delivered clean, quiet power in my testing. The isolation between outputs prevents ground loops, and I could not detect any digital clock noise bleeding into analog pedals. For players upgrading from a daisy chain, the improvement is immediately obvious.
Best Suited for First-Time Isolated Power Buyers
If you are moving from a daisy chain or individual wall warts to isolated power for the first time, the Mini Iso-Brick is the ideal entry point. The price-to-performance ratio is excellent, and the 5 outputs with the splitter cable cover most beginner to intermediate pedalboards.
Players with compact boards who need one high-current output for a digital pedal alongside 3 to 4 analog effects will find the Mini Iso-Brick’s output configuration perfectly suited to their needs.
Consider Something Else If You Have 8 or More Pedals
Five outputs limits this unit to smaller boards. Even with the splitter cable giving you effectively 6 outputs, players with 8 or more pedals will outgrow the Mini Iso-Brick quickly. In that case, the full-size MXR Iso-Brick with 10 outputs is a better long-term investment.
Some users report the power adapter jack being loose and disconnecting with movement. This is not a universal issue but is worth noting for players who transport their boards frequently. Securing the connection with tape during transport prevents this problem.
12. Donner DP-1 – Best Budget Power Supply
- Outstanding value with 10 outputs under $40
- Individual short-circuit protection per output
- Lightweight aluminum construction
- Works globally with 100-240V input
- Not truly isolated despite marketing claims
- 12V output may struggle under load
- LEDs too bright on dark stages
- Instructions contain errors
10 outputs
7x 9V + 1x 9V 500mA + 12V + 18V
Short-circuit protection
Aluminum alloy
AC 100-240V
The Donner DP-1 is the best-selling pedalboard power supply on Amazon with over 7,800 reviews, and the reason is simple: it offers 10 outputs at a price that makes it accessible to anyone. After testing one extensively, I can confirm it delivers solid performance for the cost, but buyers should understand exactly what they are getting.
The DP-1 provides 10 outputs covering 7x 9V at 100mA, one 9V at 500mA, one 12V at 100mA, and one 18V at 100mA. The individual short-circuit protection on each output means that if one pedal shorts, the others continue receiving power. This is a genuinely useful safety feature at any price point.
It is important to be transparent about the isolation claims. The DP-1 uses a noise reduction circuit design that simulates isolation rather than providing true galvanic isolation between outputs. For most analog pedals, this works well enough in practice. I tested it with a board of analog drives, a compressor, and a modulation pedal with no noise issues. However, mixing sensitive digital pedals with analog effects may introduce some clock noise that a truly isolated supply would prevent.
The aluminum alloy construction keeps the unit light at just 6.9 ounces, and the compact dimensions make it easy to fit on or under most boards. The blue LED indicators are bright enough to serve as pedalboard lighting on dark stages, though some players find them too bright. The AC 100-240V input works worldwide without adapters.
Best Suited for Beginners and Budget-Conscious Players
If you are just starting your pedalboard journey and want more outputs than a daisy chain without spending over $100, the DP-1 is the best option available. The 10 outputs, global power compatibility, and short-circuit protection make it a practical choice for bedroom players, beginners, and casual gigging musicians.
Players running primarily analog pedalboards will notice a significant improvement over basic daisy chain cables. The noise reduction circuit, while not true isolation, does reduce the hum and buzz that plague single-cable power solutions.
Consider Something Else If You Run Digital Pedals or Need Pro-Grade Silence
If your board includes Strymon, Eventide, or other digital pedals that are sensitive to power noise, the DP-1’s simulated isolation may not provide the clean power those pedals need. In that case, a truly isolated supply like the MXR Mini Iso-Brick or Truetone CS6 is worth the additional investment.
Professional touring musicians and recording engineers who need absolute silence should also look beyond the DP-1. The simulated isolation and budget component quality mean this unit will not match the noise performance of premium isolated supplies from Voodoo Lab, CIOKS, or Strymon.
How to Choose a Pedalboard Power Supply
Choosing the right power supply for your pedalboard comes down to understanding your specific needs. The number of pedals you run, the types of pedals (analog vs digital), your voltage and current requirements, and your physical pedalboard layout all factor into the decision. Let me break down the key considerations.
Isolated vs Non-Isolated Power: What Is the Difference?
Isolated power means each output has its own independent ground connection, electrically separated from every other output. This prevents ground loops, which are the most common cause of hum and buzz in pedalboard setups. If you have ever heard a persistent 60-cycle hum that disappears when you lift one pedal’s ground, you have experienced a ground loop.
Non-isolated power supplies, including basic daisy chains, share a common ground across all outputs. This works fine for simple setups with similar pedals but introduces noise when you mix different pedal types, especially combining analog and digital effects. Every supply on our list except the Donner DP-1 offers true galvanic isolation between outputs.
Understanding Voltage and Current Requirements
Voltage and current (mA) are the two specifications that matter most when matching a power supply to your pedals. Most guitar pedals run on 9V DC with center-negative polarity, but some require 12V, 18V, or even AC power. Always check your pedal’s power requirements before connecting anything.
Current draw is where many players get confused. A pedal’s mA rating tells you how much current it needs to operate correctly. If your power supply output provides less mA than the pedal requires, the pedal may malfunction, produce noise, or not work at all. As a rule, your power supply output should meet or exceed the pedal’s stated current requirement. Providing more mA than needed is completely safe, as pedals only draw what they need.
Digital pedals like Strymon, Eventide, and Line 6 units typically need 250 to 500mA. Analog drives, fuzz, and modulation pedals usually draw 20 to 100mA. Amp modelers can require 500mA or more. Always add up your total current draw and compare it against the power supply’s total output capacity.
How Many Outputs Do You Need?
Count your current pedals, then add 2 to 3 outputs for future expansion. Buying a power supply with more outputs than you currently need is almost always the right call, because upgrading later means replacing the entire unit or adding a second supply. Players frequently underestimate how quickly their pedalboards grow.
If you use multi-effects pedals or amp modelers alongside individual effects, make sure your power supply has at least one high-current output of 500mA or more for the power-hungry unit. Most modern multi-effects pedals need dedicated high-current power.
Form Factor and Mounting Considerations
Where your power supply physically lives on your pedalboard matters more than most players expect. If you have a Pedaltrain or similar slatted board, you need a supply that fits in the clearance space underneath. Measure the vertical clearance under your board before buying, and check the power supply’s height specification.
Units with IEC power cables are preferable to those with wall warts because IEC cables are universally replaceable. If your IEC cable fails at a gig, you can borrow one from your amp or the venue’s backline. Wall wart adapters are proprietary and cannot be easily replaced in an emergency.
Expandability for Growing Boards
Several power supplies on our list offer expansion options. The Voodoo Lab Pedal Power 3 uses X-LINK ports to connect additional Voodoo Lab units, scaling up to 16 outputs. The Walrus Audio Canvas Power series uses a through-power daisy chain system. The Ernie Ball Volt can chain multiple Volts together. If you anticipate your pedalboard growing significantly, choosing an expandable supply from the start saves money long-term.
Cable Management Tips
Good cable management improves both the appearance and functionality of your pedalboard. Use right-angle barrel connectors to save vertical space between pedals and the board surface. Route power cables separately from audio cables when possible to minimize interference. Truetone’s color-coded cable system on the CS12 is worth mentioning as an example of thoughtful cable management design.
Keep power cables as short as possible between the supply and each pedal. Excess cable length creates clutter and can act as an antenna for interference. If your power supply includes cables of different lengths, assign the longest cables to the pedals furthest from the supply and the shortest to nearby pedals.
FAQs
Are all pedalboard power supplies isolated?
No, not all pedalboard power supplies are isolated. While most modern units from reputable brands feature truly isolated outputs, some budget options like the Donner DP-1 use noise reduction circuitry that simulates isolation without providing true galvanic separation between outputs. Always check the manufacturer specifications and look for language specifying individually isolated outputs rather than just isolated power in general.
Do I need an isolated power supply for analog pedals?
While analog pedals are less sensitive to power noise than digital pedals, an isolated power supply is still recommended. Analog pedals draw less current and generate less internal noise, so daisy chaining them often works acceptably. However, mixing analog pedals with even one digital pedal on a shared non-isolated supply can introduce digital clock noise into your analog signal chain. Isolated power is always the safer choice.
Why is my pedal making a high-pitched whining noise?
A high-pitched whining noise from your pedal is typically digital clock noise bleeding through the power supply. This occurs when digital pedals share a power connection with analog pedals on a non-isolated supply. The switching frequencies inside digital pedals can leak into the shared power bus and become audible. Switching to an isolated power supply with separate grounds for each output eliminates this issue in almost every case.
Can I plug a 9V pedal into a 12V or 18V outlet?
Generally no. Plugging a pedal designed for 9V into a higher voltage outlet can permanently damage or destroy the pedal’s internal components. The only exception is pedals specifically designed to accept a range of voltages, which will be noted in the pedal’s manual. Some overdrive and compressor pedals are designed to run at 18V for increased headroom, but always verify before connecting. When in doubt, match the voltage exactly.
What happens if I exceed the mA rating on a pedalboard power supply?
If you exceed the total mA capacity of your power supply, your pedals may produce unusual noises, glitch, or stop functioning correctly. In extreme cases, the power supply may overheat or shut down. Some modern supplies like the Truetone CS12 allow you to draw more current than the per-output rating as long as the total stays within the unit’s overall capacity. Always add up your pedals current requirements and compare against the supply total.
Can I mount a pedalboard power supply without drilling?
Yes, you can mount a power supply without drilling using several methods. Heavy-duty Velcro or dual-lock strips work well for lightweight units. Zip ties threaded through pedalboard slats provide secure mounting for supplies with mounting slots. Some manufacturers like Walrus Audio and Truetone include mounting brackets designed for specific pedalboard brands. For supplies without included hardware, adhesive-backed mounting plates offer a drill-free solution.
Can I power an amp modeler with a pedalboard power supply?
Yes, many modern pedalboard power supplies can power amp modelers, but you need to verify current requirements first. Amp modelers like the Strymon Iridium, HX Stomp, and Neural DSP Nano Cortex typically require 500mA or more at 9V. Power supplies with high-current outputs like the Voodoo Lab Pedal Power 3, Strymon Zuma, and Truetone CS6 are well-suited for powering modelers alongside standard pedals.
Are there pedalboard power supplies that are expandable?
Yes, several power supplies offer expansion capabilities. The Voodoo Lab Pedal Power 3 uses X-LINK ports to connect additional Voodoo Lab units for up to 16 total outputs. The Walrus Audio Canvas Power series uses a through-power daisy chain system. The Ernie Ball Volt can chain multiple units together. The CIOKS SOL also supports connecting multiple units for larger boards. Choosing an expandable supply lets you grow without replacing your power solution.
Conclusion: Finding Your Best Pedalboard Power Supply
The best pedalboard power supplies eliminate the noise, hum, and reliability issues that plague cheaper power solutions. After testing 12 units across pedalboard configurations ranging from compact 4-pedal travel boards to full digital rigs with amp modelers, our top pick remains the Voodoo Lab Pedal Power 2 Plus for its unmatched combination of isolated outputs, sag control, build quality, and proven long-term reliability.
For players building large pedalboards with 10 or more pedals, the Truetone CS12 delivers the most outputs and total current per dollar. Budget-conscious players should look at the MXR Mini Iso-Brick for genuine isolated power at an accessible price, while the Donner DP-1 remains the entry point for beginners who want more outputs than a daisy chain without a significant investment.
Whatever you choose, investing in a quality power supply is one of the most impactful upgrades you can make to your pedalboard. The difference between a daisy chain and proper isolated power is immediately audible, and protecting your pedals from voltage irregularities ensures they perform consistently gig after gig in 2026 and beyond.