Over the years this list has existed, the number of pedalboard-oriented power supplies (good and bad) has literally exploded. While redoing the entire ”power list” section – implementing a new system for the tables – I decided to do a little spring cleaning on this page too. So what has changed?

The list now focuses on currently available (not only on the used market) multi-output power supplies. Pedal-specific power supplies (such as the one that comes with the Whammy, for instance) and single wall-wart/adapter types are not listed.

Also, I have started applying a slightly subjective filter, where I may not be listing all the Aliexpress/Amazon/cheapo supplies out there. All at my own discretion, of course 😉 This does not mean that all the supplies that are in the list are ”approved” or recommended by me. In fact, some might even be here because they are popular/cheap but not quite as advertised (for instance one that is often believed to have isolated outputs, but actually doesn’t). So if a readily available supply isn’t listed, it’s either because I missed it or because I decided to skip it.


UnitTypeIsolated outputsCapacityNotes
Accel FX Power Source 8
Transformer with mains voltage selectorYes (not tested)Adj 9-18vDC, 50mA
Adj 5-9vDC, 100mA
4 x 9/12vDC, 100mA
2 x 9vDC, 350mA
Courtesy mains outlet.
Alctron DCT-100 Power Station Junior
Transformer with mains voltage selectorIn groups (not tested)8x9vDC
12vDC
12vAC
1500mA total capacity – possibly 500mA for each section.
(T-Rex Fuel Tank Classic)
Alctron DCT-200
Transformer with mains voltage selectorYes (not tested)8x9vDC (of which 2 look like high current and 2 adjustable)
12vDC
12vAC
2000mA total capacity.
Artec SPB-8 Power Brick
Switching adapterNo8 x 9vDC, 100mA each; two adjustable 0-12vDC.Top-loaded connections, so it will not allow pedals placed on top of it. Each output is individually regulated, but not isolated.
Artec SPB-12 Power Brick
Switching adapterNo10 x 9vDC, 100mA each
2 x selectable 9/12vDC, 300mA each
Top-loaded connections, so it will not allow pedals placed on top of it. Each output is individually regulated, but not isolated.
BBE Supa-Charger
Toroidal transformer with mains voltage selectorYesSix outputs switchable 9/12vDC, 100mA and two switchable 9/16vDC, 200mA. Similar to the Pedal Power 2+, but without the ”sag” function. May no longer be available new, but it’s one of the good ones!
Belcat PST-10 Power Station
Separate DC adapterNo8 x 9vDC + two adjustable 6-12vDCPowered from a 15vDC adapter (1000mA). No info on mA capacity for the outputs. Also sold in some markets under the Crossfire brand.
Carl Martin DC Factory
Switching typeYes, in groups4 groups of 2x9vDC, 500mA
1 group of 2x12vDC, 500mA
Carl Martin Pro Power
Transformer (toroidal?) with mains voltage selectorYes8 isolated outputs, switchable 9/12vDC.
Outputs 1-6: 150/110mA
Outputs 7-8: 350/220mA
Cioks DC8
Toroidal transformer with mains voltage selector8 outputs total, in 6 isolated sections.Outputs 1-2:
9vDC, 100mA each
Outputs 3-4:
9/12vDC, 100mA each
Outputs 5-6:
9 and 12vDC, 300mA total
Outputs 7-8:
9 and 12v DC, 300mA total
Discontinued, but definitely worth buying used.
Cioks DC10
Toroidal transformer with mains voltage selector10 outputs total, in 8 isolated sections.Outputs 1-4:
9vDC, 100mA
Outputs 5-6:
9/12vDC, 200mA
Outputs 7-8:
9 and 12vDC, 400mA total
Outputs 9-10:
9 and 12/15v DC, 400mA total
Capable of running both normal 9vDC pedals and power-hogs like Eventide, TC Nova series, Tonebones etc.
Cioks Ciokolate
Toroidal transformer with mains voltage selector16 outputs total, in 12 isolated sections.Output 1: 4-15vDC, 100mA
Outputs 2-4: 9vDC, 100mA
Output 5: 18/24vDC, 100mA
Outputs 6-7: 9/12vDC, 200mA
Outputs 8-9: 9/12vDC, 400mA
Outputs 10-11: 9/12 or 15vDC, 400mA
*Outputs 12-13: 9/12 or 15vDC, 600mA
*Output 14: 9/12vAC, 800mA
Outputs 15-16: 9/12 or 16vAC, 800mA
*Use only one of these sections
Cioks DC5 Link
Toroidal transformer with mains voltage selectorYes9/12V DC, 300mA
9/12V DC, 300mA
9/18vDC, 100mA
9/12vDC, 100mA
9/12vDC, 100mA
Discontinued, but definitely worth buying used.
Cioks DC10 Link
Toroidal transformer with mains voltage selectorYes2 x 9vDC, 100mA
2 x 9/12V DC, 100mA
2 x 9/12V DC, 200mA
9/12vDC, 400mA
2 x 9vDC, 400mA
9-24vDC, 800-300mA
Accessory mains outlet can be used to link to other supplies. Built in mA meter.
Cioks SOL
SwitchingYes5 outputs, each selectable:
9vDC, 660mA
12vDC, 500mA
15vDC, 400mA
18vDC, 330mA
Universal 100-240vAC mains input.
Cioks DC7
SwitchingYes7 outputs, each selectable:
9vDC, 660mA
12vDC, 500mA
15vDC, 400mA
18vDC, 330mA
Universal 90-265vAC mains input. 5v USB output. 24vDC link output to power a Cioks 4 or 8.
Cioks 4
n/a (powered from DC7 or Cioks 8)Yes4 outputs, each selectable:
9vDC, 660mA
12vDC, 500mA
15vDC, 400mA
18vDC, 330mA
Add-on to the DC 7 or Cioks 8. Can also be powered by any supply 9-24 volts, AC or DC or the 5v USB-C input.
Cioks 8
n/a (powered from DC7)Yes4 fixed 9vDC, 660mA
4 selectable:
9vDC, 660mA
12vDC, 500mA
15vDC, 400mA
18vDC, 330mA
Add-on to the DC 7. Can also be powered by any supply 9-24 volts, AC or DC. 24vDC link to power a Cioks 4.
Cioks Crux
n/a (powered from DC7)Yes9vDC, 2700mA or
12vDC, 2000 mA
Add-on to the DC7, to provide power to high-current units such as the Neural DSP Cortex or Line6 HX series.
Decibel 11 Hot Stone Deluxe
Toroidal transformer with mains voltage selectorYes (8 sections)Outputs 1-2: 9 and 12vDC, 400mA
Outputs 3-4: 9 and 12vDC, 400mA
Outputs 5-6: 9vDC, 100mA
Outputs 7-8: 9/12vDC, 200mA
Outputs 9-10: Variable 5-9vDC, 100mA
New version – the old version (in the lighter grey box) is the same but with fixed input voltage.
Decibel 11 Hot Stone SMD
Toroidal transformer with mains voltage selectorYes (6 sections)Outputs 1-2: 9 and 12vDC, 400mA
Outputs 3-4: 9 and 12vDC, 400mA
Outputs 5-8: 9vDC, 100mA each
The first two isolated groups (outputs 1-2 and 3-4) have a 9vDC and 12vDC output, which share 400mA max. The remaining four are separately isolated 100mA outputs for regular pedals.
Digitech Hardwire V10 Power Block
Toroidal transformerYes4 x 9vDC, 150mA
2 x 9/12vDC, 200mA (can be merged to 400mA)
2 x 9/12vDC, 150mA (can be merged to 300mA)
2 x 9vDC/5-12vDC, 150mA
Effectrode AT-2A Atomic
SwitchingYes4 x 12vDC, 1250mA center positive.
Output 1 can be configured for 9vDC, 600mA center positive or negative.
110-240vAC mains input. Specifically designed for Effectrode tube pedals, but will of course work with other pedals that need high current 12vDC.
Ego Sonoro Zero Noise
Onboard battery packNo (?)8 x 9vDC, 150 mA
2 x 9vDC, 150 mA (center positive)
2 x 12vDC, 150 mA (center positive)
5A capacity battery. 100-240vAC input for charging.
Ego Sonoro Zero Noise Road
Onboard battery packNo (?)4 x 9vDC, 150 mA
1 x 9vDC, 150 mA (center positive)
1 x 12vDC, 150 mA (center positive)
1.3A capacity battery. Separate charger supplied with unit.
Electro-Harmonix MOP-D10
Toroidal transformer with mains voltage selectorYes10 outputs, all 9vDC:
4 x 100 mA
2 x 250 mA
2 x 300 mA
2 x 400 mA
Power on/off switch. Hardware for pedalboard mounting included.
Electro-Harmonix S8
External adapter
(12vDC)
No7 x 9vDC, 250mA
1 x 18vDC, 150mA
Eventide PowerMax
SwitchingYes3 x 9vDC, 660mA
4 outputs selectable:
9vDC, 660mA
12vDC, 500mA
15vDC, 400mA
18vDC, 330mA
Universal 90-265vAC mains input. 5v USB output. 24vDC link output to power a PowerMini. A Cioks DC7 with fewer selectable outputs.
Eventide PowerMini
External 18vDC adapter or powered from PowerMaxYes2 x 9vDC, 660mA
2 outputs selectable:
9vDC, 660mA
12vDC, 500mA
15vDC, 400mA
18vDC, 330mA
Available as a standalone unit (ships with an external 18vDC adapter), or as an add-on to the PowerMax (ships with connection cable). A Cioks 4 with fewer selectable outputs.
Fender Engine Room LVL5
SwitchingYes5 x 9vDC, 500mA100-240vAC mains input
Fender Engine Room LVL8
SwitchingYes6 x 9vDC, 500mA
2 x selectable 9/12/18vDC, 500/375/250mA
100-240vAC mains input
Fender Engine Room LVL12
SwitchingYes10 x 9vDC, 500mA
2 x selectable 9/12/18vDC, 500/375/250mA
100-240vAC mains input.
Courtesy mains AC output (1.6A max).
Free the Tone PT-3D
External 12vDC adapterYes (3 sections)6 x 9vDC, 100mA (common ground)
2 x 9vDC, 500 mA (isolated)
Friedman Power Grid 10
SwitchingYes10 x 9vDC, 350mA100-240vAC mains input
Gator G-BUS-8
External switching adapterNo1700mA max total
8x9vDC (250mA max/port)
3x18vDC (350mA max/port)
Gator POWER-5
Transformer with mains voltage selectorYes5 x 9vDC, 120mA
Gator POWER-8
Transformer with mains voltage selectorYes2 x 4~9vDC, 120mA
3 x 9/12vDC, 120mA
1 x 9/18vDC, 250mA
1 x 9/12vDC, 250mA
1 x 12vAC, 500mA
Gator POWER-12
Transformer with mains voltage selectorYes2 x 18vDC, 120mA
3 x 9/12vDC, 120mA
2 x 4~9vDC, 120mA
2 x 9vDC, 300mA
2 x 9vDC, 500mA
USB-C output for a gooseneck pedalboard light. Courtesy AC outlet.
G-Lab PB-1
SwitchingYes8 x 9vDC, 350mA max
1000mA max from each section (1-4 and 5-8)
100-240vAC mains input. Outputs 4 and 8 can be switched to reverse polarity.
Harley Benton PowerPlant ISO-1Pro
External adapter
(12vDC, 2A)
Yes8 x 9vDC, 500mA
Harley Benton PowerPlant ISO-2Pro
External adapter
(12vDC, 2A)
Yes2 x 9/12/18vDC, 500mA
6 x 9vDC, 300 mA
(Vitoos DD8-SV2)
Harley Benton PowerPlant ISO-5Pro
External adapter
(12vDC, 2A)
Yes3 x 9vDC, 300mA
2 x 9/12/18vDC, 500mA
(Vitoos DD5-SV2)
Harley Benton PowerPlant ISO-12Pro
External adapter
(12vDC, 3A)
Yes9 x 9vDC, 300mA
3 x 9/12/18vDC, 500mA
(Vitoos DD12-SV3)
Harley Benton PowerPlant Modular series
Switching
100-240vAC mains input
YesISO-1 AC:
5 x 9vDC, 500mA
ISO-2 AC:
3 x 9/12vDC, 300mA
2 x 9/18vDC, 300mA
ISO-3 AC SAG:
2 x 4-9vDC, 500mA
2 x 6-18vDC, 500mA
These supplies can be linked together with IEC connectors, to form a larger supply with a single mains AC cable.

The ISO-3 AC SAG also has a 12vDC/1A LINK output to power the ISO-1Pro, ISO-2Pro or ISO-5Pro (at limited capacity).
Harley Benton PowerPlant ISO-10AC Pro
Switching
100-240vAC mains input
Yes4 x 9vDC, 250mA
2x 9vDC, 500mA
4 x 9/12/18vDC, 450/330/240mA
(Vitoos AD10S-SV4)
Harley Benton Power Plant JR
TransformerYes5 x 9vDC/120mA
Harley Benton PowerPlant Tuner
External adapter
(9vDC, 1A)
Yes, in two sections (not verified)6 x 9vDC, 100mA
2 x 9vDC, 500mA
Combined pedalboard tuner and power supply.
(Joyo JF-18R)
Harley Benton StompControl 4-ISO
External adapter (12vDC, 2A)Yes3 x 9vDC, 100mA
9vDC, 300mA
9vDC, 500mA
Programmable 4 loop pedal controller with built-in power supply function.
JHT Power Supply Mini
External adapterNo (possibly the last output)2 x 6-12vDC, 480mA
5 x 9vDC, 480mA (800mA max from this group)
1 x 9vDC, 480mA (can be switched to center positive, 20mA max)
1500mA max current draw across the unit. LCD display shows output voltage/current draw for each output. The output that can be switched to center positive, 20mA max is not confirmed to be isolated in that mode.
JHT Power Supply Nano
External adapterNo (possibly the last output)6 x 9vDC, 300mA
1 x 9/12vDC
1 x 9vDC, 300mA (can be switched to center positive, 20mA max)
1000mA max current draw across the unit. The output that can be switched to center positive, 20mA max is not confirmed to be isolated in that mode.
Joyo JF-18R Power Tune
External adapter
(9vDC, 1A)
Yes, in two sections (not verified)6 x 9vDC, 100mA
2 x 9vDC, 500mA
Combined pedalboard tuner and power supply.
(Harley Benton PowerPlant Tuner)
Joyo JP-02
External adapterNo7 x 9vDC, 100mA
1 x 9vDC, 500mA
1 x 12vDC, 100mA
1 x 12vDC, 100mA
Claimed to have isolated outputs, but doesn’t. The ”isolation” they mention is actually short circuit protection. Also sold under many other brand names (with similar claims).
Joyo JP-04
R-core (semi-toroidal) transformerYes (not verified)5 x 9vDC, 100mA
2 x 9vDC, 250mA
1 x 12/18vDC, 100mA
Courtesy mains outlet
Joyo JP-05
Onboard battery packNo3 x 9vDC, 500mA
4 x 9vDC, 100mA
1 x 9/12/18vDC, 100mA
USB-A (1A) output
Joyo ZGP / JP-06 Powered from USB or 9vDC?ZGP: 9vDC, 800mA max
ZGPW: 9vDC, 400mA max
Branded as a ”power noise blocker”. The ZGPW version comes with a USB cable to turn a charger or USB output into an pedal power supply output (but it can also use 9vDC input). I don’t know in what other ways they differ (why the ”W” has less capacity), or if either or both are actually isolated.
Mission Engineering 529
Powered via USB (type B at the input of the 529)Yes4 x 9vDC, 150mA
1 x 9vDC, 500mA
Type A USB output can be used to link to a second 529.
Mission Engineering 529I
Onboard battery packYes2 x 9vDC, 500mA
6 x 9vDC, 200mA
USB-A output
Mission Engineering 529M
Powered via USB-PD?1 output, selectable 6/9/12/15/18vDC
3000mA max current
Mission also sells a power bank (529P) to go along with the 529 or 529M
Mission Engineering 529X
External adapter (12vDC) or USB-PD via a 529MYes8 x 9vDC, 500mA
or
4 x 9vDC, 100mA and 1 x 1000mA (using two 500mA outputs in parallel)
Modtone Power Plant
Toroidal transformer with mains voltage selector.YesVersion 1:
5 x 9/12vDC, 150mA
2 x 4-9vDC, 150mA
1 x 9vAC, 1000mA
Version 1.3:
5 x 9/12vDC, 100mA
2 x 4-9vDC, 200mA
1 x 9vAC, 1300mA
Courtesy mains outlet.  

Version 1 units induced a hum in the 9vAC-powered pedal, a problem that seems to have been fixed in the latest (version 1.3) model.
Moen MISO-8
TransformerYes (not confirmed)Output 1: variable 9-18vDC, 50mA
Output 2: variable 5-9vDC, 100mA
Outputs 3-6: 9/12vDC, 100mA
Outputs 7-8: 9vDC, 350mA
Courtesy mains outlet
Mooer Macro Power S8
Transformer with input voltage selectorYes, in sections (not confirmed)1 selectable 9/12/15/18vDC, 200mA
3x9vDC, 200mA
4x9vDC, 400mA total
Outputs 1-4 are isolated, while outputs 5-8 (four 9vDC outputs) share a single source.
Mooer Macro Power S12
2 toroidal transformers with input voltage selectorYes (not confirmed)6 x 9vDC, 200mA
3 x 9vDC, 300mA
1 x 9/12/15/18vDC, 300mA
2 x 9vDC, 500mA
Mooer Micro Power
External adapter (12vDC)No8 x 9vDC, 300mAWhile it says ”isolated outputs” on the box, it is actually not isolated.
Moollon MPS-12 Power Supply
Toroidal (?) transformerYesOutputs 1-9:
9/12vDC, 100/70mA
Outputs 10-12:
9/12vDC, 250/200mA
Mosky C8 Power Station
Toroidal transformer with input voltage selectorYes (not confirmed)3 x 9/12vDC, 100mA
2 x 9/12vDC, 300mA
9/18vDC, 100mA
2 x 9/4-9vDC, 100mA
Mosky ISO-6 Power Station
Toroidal transformer with input voltage selectorYes (not confirmed)4 x 9/12vDC, 500mA
9vAC, 1300mA
12vAC, 500mA
Mosky ISO-10
External adapter (12vDC, 2500mA)Yes (not confirmed)7 x 9vDC, 300mA
9vDC, 500mA
2 x 9/12/18vDC, 500mA
USB-A 5v/1A output
Mosky Nano
External adapter (15vDC, 1000mA)No6 x 9vDC, 150mA
9vDC, 500mA
9/12vDC, 100mA
Total max current across all outputs: 1000mA
MXR/CAE Power System
Toroidal transformer with input voltage selectorYes8 x 9vDC, 80mA
4 x 18vDC, 125mA
2 variable 6-15vDC, 200mA
2 x 9vAC, 800mA
Designed by Bob Bradshaw. Rackmountable – it’s wide, but not as big as it would seem. Courtesy mains outlet.
MXR DC Brick (M237)
External adapter
(18vDC, 2A)
No8 x 9vDC, 1200mA total
2 x 18vDC, 800mA total
Twice as powerful compared to the earlier version (DCB-10 in Dunlop-branded black casing). The 9v and 18v outputs are rated at 150mA and 400mA average, respectively, but the total capacity from each section can be used from a single output, if you’d like.
MXR ISO-Brick (M238)
External adapter (18vDC, 2A)Yes2 x 9vDC, 100mA
2 x 9vDC, 300mA
2 x 9vDC, 450mA
2 x 18vDC, 250mA
2 x 6-15vDC, 250mA
MXR Mini ISO-Brick (M239)
External adapter (18vDC, 2A)Yes4 x 9vDC, 300mA
9/18vDC, 800mA
N-Audio Powerbox MK2
Transformer (voltage selector optional)
Yes, in sectionsEach section has two outputs that share current capacity and voltage setting. So you could call it a 5 output supply with twin jacks for each output. 
N-Audio Powerbox Pro
Transformer (voltage selector optional)Yes, in sectionsEach section has two outputs that share current capacity and voltage setting. So you could call it a 7 output supply with twin jacks for each output. 
One Control DC Porter
USB powered (Micro B)No10 x 9vDC, 1000mA totalSold as standalone unit (just the box) or combined with USB charger and cables (”All-in-one pack”).
One Control Distro MkII
External adapter (12vDC)Yes4 x 9vDC, 500mA
4 x 9vDC, 80mA
1 x 9vDC, 250mA
1 x 9-18vDC, 250-125mA SAG output
One Control Distro Minimal
External adapter (18vDC, 1A)No8 x 9.6vDC 800mA total
2 x 18vDC, 200mA total
Sold as standalone unit (just the box) or combined with the adapter and cables (”All-in-one pack”)
Palmer PWT04
External adapter (12vDC) Yes (not verified)4 x 9vDC, 250mA
Palmer PWT05 MkII
Transformer with mains voltage selectorYes5 x 9vDC, 250mAComes with daisy chain, voltage and current doubler cables
Palmer PWT08
External adapter (12vDC, 2A)Yes, in sections (not verified)6 x 9vDC, 150mA each
2 x 9/12/18vDC, 500mA
Same as the Vitoos DC8, but with more believable mA figures.
Palmer PWT12 MkII
External adapter (18vDC, 2A)Yes (not verified)8 x 9vDC, 300mA
4 x 6-18vDC, 500mA
Same as the Vitoos DD12-AV4, but with more believable mA figures. Still, Palmer says 2000mA max total output, so don’t expect to be able to max out each output.
Providence Provolt 9
External adapter (12vDC)No6 x 9vDC, 100mA
Strymon Ojai
External adapter (24vDC) or linkYes5 x 9vDC, 500mA24vDC output allows you to link more Ojais together, for more outputs.
Strymon Ojai R30
External adapter (24vDC) or linkYes3 x 9vDC, 500mA
2 x 9/12/18vDC
(500/375/250mA)
24vDC output allows you to link more Ojais together, for more outputs.
Strymon Zuma
Switching
100-240vAC
Yes7 x 9vDC, 500mA
2 x 9/12/18vDC
(500/375/250mA)
24vDC output allows you to link to an Ojai or Ojai R30, for more outputs.
Strymon Zuma R300
Switching
100-240vAC
Yes4 x 9vDC, 500mA
1 x 9/12/18vDC
(500/375/250mA)
24vDC output allows you to link to an Ojai or Ojai R30, for more outputs.
Swiff P100 Adjustable Power
External adapter (24vDC)No6 x 9vDC, 100mA
2 x 9/12vDC, 300mA
1 x 9-24vDC, 300mA
All jacks on top of unit. Voltage display shows setting of adjustable output.
The GigRig Generator + Modular Power Supply System
Switchingn/a9vDC, 5000mAPower source and starting block for the GigRig modular system of Distributors, Isolators, Adaptors etc.
T-Rex Fuel Tank Chameleon
Transformer with mains voltage selectorYes1-3: 9/12vDC, 300mA
4: 9/18vDC, 300/150mA
5: 9/12vDC, 300mA*
6: 12vAC, ?mA*
* Do not use output 5 and 6 simulaneously
T-Rex Fuel Tank Classic
Transformer with mains voltage selectorYes, in sections9 x 9vDC, 500mA total
12vDC, 500mA
12vAC, 500mA
The 9vDC, 12vDC and 12vAC sections are isolated from each other. All 9vDC outputs are wired in parallel.
T-Rex Fuel Tank Junior
Transformer with mains voltage selectorYes5 x 9vDC, 120mAOriginal version with attached mains cable did not have 115/230 voltage selector.
Truetone CS6
Switching
(100-240vAC)
Yes2 x 9vDC, 500mA
2 x 9/18vDC, 100mA
2 x 9/12vDC, 200mA
Truetone CS7
Switching
(100-240vAC)
Yes18vDC, 100mA
4 x 9/12vDC, 200mA
2 x 9vDC, 500mA
Truetone CS12
Switching
(100-240vAC)
Yes2 x 18vDC, 100mA
4 x 9/12vDC, 100mA
1 x 9/4-9vDC, 100mA
2 x 9vDC, 250 mA
2 x 9vDC, 500mA
1 x 9vAC, 800mA (5.5×2.5mm jack)
Vitoos AD5 Switcher
Switching
(100-240vAC)
Yes5 x 9vDC, 500mA
Vitoos AD5 Transformer

Toroidal transformer with mains voltage selectorYes5 x 9vDC, 250mA
Vitoos AD5S Link/Pro
Switching
(100-240vAC)
YesAD5S Link:
5 x 9vDC, 500mA
AD5S Pro:
3 x 9/12vDC, 300mA
2 x 9/18vDC, 300mA
These supplies can be linked together with IEC connectors, to form a larger supply with a single mains AC cable.

(Harley Benton Modular series)
Vitoos AD10S-SV4
Switching
(100-240vAC)
Yes4 x 9vDC, 250mA
2x 9vDC, 500mA
4 x 9/12/18vDC, 450/330/240mA
(Harley Benton PowerPlant ISO-10AC Pro)
Vitoos DD5-SV2
External adapter
(12vDC, 2A)
Yes3 x 9vDC, 500mA
2 x 9/12/18vDC, 500mA
(Harley Benton PowerPlant ISO-5 Pro)
Vitoos DD8-SV2
External adapter
(12vDC, 3A)
Yes2 x 9/12/18vDC, 500mA
6 x 9vDC, 300 mA
(Harley Benton PowerPlant ISO-2 Pro)
Vitoos DD10
External adapter
(12vDC, 2A)
Yes8 x 9vDC, 500mA
2 x 18vDC, 500mA
Vitoos DD12-SV3
External adapter
(12vDC, 3A)
Yes9 x 9vDC, 300mA
3 x 9/12/18vDC, 500mA
(Harley Benton PowerPlant ISO-12 Pro)
Vitoos DD12-AV4
External adapter
(18vDC, 2A)
Yes8 x 9vDC, 300mA
4 x 6-18vDC, 500mA
(Palmer PWT12 MkII)
Voodoo Lab Pedal Power 3
Switching
(100-240vAC)
Yes6 x 9vDC, 500mA
2 x 9/12vDC, 500/200mA
Two X-link outputs can be used to connect a Pedal Power X4 or X8, for more outputs.
Voodoo Lab Pedal Power 3 Plus
Switching
(100-240vAC)
Yes10 x 9vDC, 500mA
2 x 9/12vDC, 500/200mA
Two X-link outputs can be used to connect a Pedal Power X4 or X8, for more outputs.
Voodoo Lab Pedal Power X4
External adapter (12vDC) or X-link from Pedal Power 3/3+Yes4 x 9vDC, 500mA

(also available as the X4-18V, with 2 x 9vDC and 2 x 18vDC)
Voodoo Lab mentions that the X4 can be powered from any 12vDC output with 400mA or more capacity. Obviously, that wont allow it to provide the full 500mA for each output.
Voodoo Lab Pedal Power X8
External adapter (12vDC) or X-link from Pedal Power 3/3+Yes8 x 9vDC, 500mAVoodoo Lab mentions that the X8 can be powered from any 12vDC output with 400mA or more capacity. Obviously, that wont allow it to provide the full 500mA for each output.
Voodoo Lab Pedal Power 2+
Toroidal transformerYes4 x 9/12vDC, 100/60mA
2 x 9vDC, 250mA or unregulated
2 x 9/4-9vDC, 100mA
Courtesy mains outlet
Voodoo Lab Pedal Power 4×4
Toroidal transformerYes2 x 9/12vDC, 400mA
2 x 9vDC, 400mA
4 x 9vDC, 100mA
Voodoo Lab Pedal Power ISO-5
Toroidal transformerYes3 x 9vDC, 100mA
9/12vDC, 400mA (separate 9/12v outputs – use only one at a time)
18vDC, 100mA
Voodoo Lab Pedal Power Mondo
Toroidal transformerYes2 x 9/12vDC, 400mA (separate 9/12v outputs – use only one at a time)
2 x 9vDC, 400mA
4 x 9/12vDC, 100/60mA
2 x 9vDC, 250mA or unregulated/12vDC*
2 x 9/4-9vDC, 100mA
*With the two 9vDC, 250mA outputs (5-6) in the right side section, I don’t know if the alternate mode is 12vDC (as mentioned by Voodoo Lab) or unregulated (as with the PP2+).

Courtesy mains outlet.
Walrus Audio Aetos
Toroidal transformerYes6 x 9vDC, 100mA
2 x 9vDC, 250mA
Courtesy mains outlet (only on 120vAC version).
Walrus Audio Phoenix
2 x toroidal transformerYes8 x 9vDC, 100mA
4 x 9vDC, 300mA
2 x 9/12vDC, 100mA
9/18vDC, 100mA
Courtesy mains outlet (only on 120vAC version).
Yankee HS-M5

Toroidal transformer (with mains voltage selector?)Yes2 x 9/12vDC, 400/280mA
6-24vDC, 700-300mA
9-18vDC, 1200-600mA
9vDC, 400mA
IEC mains input can be moved topside
Yankee HS-M10

Toroidal transformer with mains voltage selectorYes9/12vAC, 1300mA or 9/12vDC, 1300/300mA
9/12vDC, 400mA
9-24vDC, 600-120mA
9-18vDC, 600-330mA
3 x 9vDC, 400mA
1 x adjustable 1-10vDC, 400mA
IEC mains input can be moved topside
Yankee HS-M12

Toroidal transformer with mains voltage selectorYes9/12vAC, 1300mA or 9/12vDC, 1300/950mA
9/12vAC, 1300mA or 9/12vDC, 1300/300mA
2 x 9/12vDC, 500/330mA
3 x adjustable 9-24vDC, 800-180mA
1 x adjustable 1-24vDC, 1100-750mA
Highly adjustable supply, where output voltage of 4 sections can be seamlessly adjusted and the exact voltage is displayed on top.

IEC mains input can be moved topside.
Yankee HS-M24

2 x toroidal transformer with mains voltage selectorYes7 x 9vDC, 400mA
2 x 9/12vDC, 600/350mA
9/12/14vAC, 1300mA
9/16vAC, 1300mA or
9/12vDC, 1300/950mA
9/12vAC, 1300mA or
9/12vDC, 1300/300mA
2 x 9/12vDC, 500/330mA
3 x adjustable 9-24vDC, 800-180mA
1 x adjustable 1-24vDC, 1100-750mA
Highly adjustable supply, where output voltage of 4 sections can be seamlessly adjusted and the exact voltage is displayed on top. This time – compared to the HS-M12 – with more AC options and more 9vDC outputs.

IEC mains input can be moved topside.
Yankee PS-M0
Toroidal transformerYes2 x 9vDC, 900mAIEC mains input can be moved topside
Yankee PS-M1
Toroidal transformerYes, in sectionsTwo isolated sections, each with 5 x 9vDC, 1200mA totalIEC mains input can be moved topside
Yankee PS-M2
Toroidal transformerYes, in sections5 x 9vDC, 1200mA total
5 x 9vDC, 1200ma total
2 x adjustable 1-10vDC, 600mA total
2 x 6-24vDC, 600mA total
9/12/14vAC, 2000mA
IEC mains input can be moved topside
Yankee PS-M12
Toroidal transformerYes, in sections5 x 9vDC, 900mA total
6-24vDC and 9-18vDC, 600mA total
9/12vAC, 1200mA
IEC mains input can be moved topside

Note: most pictures are from manufacturer’s websites, or as supplied by manufacturers to retailers. If you (as the manufacturer or retailer) feel a picture is misrepresenting your product and you want me to take it down, or if you have a better one you’d prefer I use, e-mail me at andreas (at) stinkfoot.se and I’ll be happy to oblige.


The golden rules of using power supplies:

Get a proper adapter. If it isn’t specifially made for audio applications (i.e. if it’s a generic ”will replace all adapters” type), it’s not made for audio applications, and shouldn’t be used. Yes, the same rules still apply – get the plug polarity, voltage and current (mA) capacity right, and it will work – but it probably isn’t well enough filtered. Your rig will show its dislike by humming loudly…

Get to know your pedals – before you plug in any adapter. Find out what kind of power they want (AC or DC), how much of that power they want (current draw in mA), and how it wants it delivered (plug/jack polarity). If the pedal says ”9vAC” or ”9v ~”, you can’t use the same adapter as to your Boss pedals. AC means ”alternating current”, which alters direction 50-60 times per second. DC means ”direct current”, which flows evenly from positive to negative. Also, if you plan on buying a switching type adapter, make sure it will not clash with your delay/reverb etc pedals (digital pedals and clock-based analog ones) – if you hear a faint whining sound, the switching adapter will not work for you, and the only recourse is to get a transformer based adapter.

Forget the terms ”negative tip” and ”positive tip” – those terms apply to the 1/8″ mini tele plug that to my knowledge now only is used on the ProCo RAT, the Ibanez reissue TS-808 and the old-style DOD pedals (all of which want a positive tip, btw). You might also find one or two Electro-Harmonix pedal in this group (beware, though – not all of the E-H pedals use 9 volts DC). All other ”normal” pedals use a 2.1mm barrel type plug, with the positive carried on the outside of the plug. The center pin in the adapter jack is therefore negative, and the term is ”center negative”. But plug polarity is one thing – ground polarity is another thing you need to know about. Again, most pedals (all ”normal” effects such as Boss, Ibanez etc) are the same – they have negative ground (battery ”-” goes to ground). But some effects – mainly ”boutique-type” germanium fuzz pedals – have positive ground instead. On those pedals, the adapter jack polarity is normally also reversed, but they don’t have to be – it doesn’t have anything to do with the fact that they are positive ground. The main thing to remember is that you can’t feed these pedals power from the same source (daisy chain or non-isolated psu) as you use for the others – that will short the entire power supply out, and make your pedals go quiet (at best – at worst, your gear will be damaged). For those pedals, you have to either use batteries, get a separate adapter (check the plug polarity), or get a psu with isolated outputs. Check the list above – there are only a handful of power supplies with isolated outputs.

You can never have too much power. You can kill your pedals with too much voltage, but not by the adapter having too much current. The pedals will only draw as much current as they need, regardless of the amount available from the adapter. But the bigger the adapter, the less strain you’re putting on it. A rig that draws 185 mA in total really needs a bigger adapter than 200mA – you don’t keep your car in first gear, at 5000 rpm, just because the redline is at 6000, do you? So, basically, unless there are other limitations – such as finances, for instance, or that you’re using the ”power thru” jack on a Boss TU-2/LS-2/NS-2/PSM-5 (which aren’t guaranteed for more than 200mA) – get quite a bit more than you technically need.