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No more noise!
Eliminated all the noise from my pedalboard. If you have a cheap power supply and you are wondering about something new then you need to check this powerplant iso 1. Great thing for a small price!
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D
Quiet power delivery
Took a chance on this but it has surprised me with how good it is. Very quiet, no buzzing. Bright blue leads for each channel. A good item all round.
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O
so far SO GREAT - gorgeous to look at , light, great design and functional
OK, i got this to power a mix of pedals, kenton midi box and some cyclone TT models
so far it is faultless and running a moog minifooger drive, boss rv6 x 2, behringer OD 300, TT303, TT606, kenton midi thru 5, one more pedal to go to reach maximum (don't have it yet lol)
i should say this in case a reader is not aware, some of the above are digital, some are analogue - NO ISSUES, isolated outs - smooth
con #1 and only (haha if you can call it that)
i have had to supply my own polarity reverse cable for my kenton, still no issues
no noise, no issues, no nothing except nice blue lights (very bright) that sit under a laptop stand
wish i had done this years ago - for roughly 50quid this is a steal
built great, stylish, powerful - cannot recommend more I just wish THOMANN would always supply UK plugs especially when they know the country of residence, free adaptors are great but a UK psu would be better, hint cough
i should add that i only learned of these multi psu things this last year or so, what a great way to have one psu instead of 8!!!! Also, I only learned this harley benton gear is Thomanns yesterday - surprised and not surprised, thomann are a quality distributor/shop so why not have quality gear.
so far it is faultless and running a moog minifooger drive, boss rv6 x 2, behringer OD 300, TT303, TT606, kenton midi thru 5, one more pedal to go to reach maximum (don't have it yet lol)
i should say this in case a reader is not aware, some of the above are digital, some are analogue - NO ISSUES, isolated outs - smooth
con #1 and only (haha if you can call it that)
i have had to supply my own polarity reverse cable for my kenton, still no issues
no noise, no issues, no nothing except nice blue lights (very bright) that sit under a laptop stand
wish i had done this years ago - for roughly 50quid this is a steal
built great, stylish, powerful - cannot recommend more I just wish THOMANN would always supply UK plugs especially when they know the country of residence, free adaptors are great but a UK psu would be better, hint cough
i should add that i only learned of these multi psu things this last year or so, what a great way to have one psu instead of 8!!!! Also, I only learned this harley benton gear is Thomanns yesterday - surprised and not surprised, thomann are a quality distributor/shop so why not have quality gear.
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N
Amazing value
You could spend 3-4 times the amount this costs and not really have anything better. Electrically very quiet and solidly build. Perfect for small to medium size boards made of simple pedals.
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d
Awesome supply
It has removed hum and hissing derived from the previous power supplies and daisy chaining I had in place. I also have the feeling that every pedal sounds better when connected to their single output and gives the sound it is intended to give fully. You can still daisy chain analog pedals if 8 outputs are not enough for all your pedals. The important thing is to have digital and high gain pedals with their own separate output. I can definitely recommend this.
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T
Reliable and Affordable Isolated Power Supply for Pedalboards
The Harley Benton PowerPlant ISO-1 Pro is a compact, fully isolated power supply designed to power a variety of guitar and bass pedals—both analog and digital. With eight isolated 9 V outputs (each up to 500 mA), it delivers clean and stable power while minimizing noise and ground loop issues.
Key Features:
8 fully isolated 9 V DC outputs (max 2000 mA combined)
Short-circuit and overload protection on each output
LED status indicator for each output
Compact metal housing suitable for pedalboard mounting
Includes 8 DC cables and one daisy chain cable
Powered by standard 18 V adapter (included)
In Use:
Users report clean, noise-free operation—even when powering digital pedals that typically introduce hiss or hum. The isolated outputs prevent interference between pedals, and the overall construction feels sturdy enough for regular use at home, in the studio, or on stage.
The bright LEDs are helpful for quick diagnostics but may be a bit too intense for some users, especially on darker stages. Included cables are decent, though all are the same length, which may require some creative cable management for cleaner pedalboard layouts.
Pros:
True isolated outputs for cleaner signal and better stability
Handles high-current pedals with ease
Compact and rugged design
Great value for the price
Easy to use with included cables and power supply
Cons:
DC cables are all the same length and mostly straight
LED indicators may be overly bright in some setups
Power input cable feels a bit thin compared to higher-end units
Not expandable—limited to 8 outputs as is
Final Verdict:
The Harley Benton PowerPlant ISO-1 Pro is an excellent choice for musicians looking for an affordable and reliable power supply. It offers true isolation, solid construction, and low noise performance at a fraction of the cost of similar units. While there are small compromises in cable quality and brightness, the overall functionality makes it one of the best options in its price range.
Key Features:
8 fully isolated 9 V DC outputs (max 2000 mA combined)
Short-circuit and overload protection on each output
LED status indicator for each output
Compact metal housing suitable for pedalboard mounting
Includes 8 DC cables and one daisy chain cable
Powered by standard 18 V adapter (included)
In Use:
Users report clean, noise-free operation—even when powering digital pedals that typically introduce hiss or hum. The isolated outputs prevent interference between pedals, and the overall construction feels sturdy enough for regular use at home, in the studio, or on stage.
The bright LEDs are helpful for quick diagnostics but may be a bit too intense for some users, especially on darker stages. Included cables are decent, though all are the same length, which may require some creative cable management for cleaner pedalboard layouts.
Pros:
True isolated outputs for cleaner signal and better stability
Handles high-current pedals with ease
Compact and rugged design
Great value for the price
Easy to use with included cables and power supply
Cons:
DC cables are all the same length and mostly straight
LED indicators may be overly bright in some setups
Power input cable feels a bit thin compared to higher-end units
Not expandable—limited to 8 outputs as is
Final Verdict:
The Harley Benton PowerPlant ISO-1 Pro is an excellent choice for musicians looking for an affordable and reliable power supply. It offers true isolation, solid construction, and low noise performance at a fraction of the cost of similar units. While there are small compromises in cable quality and brightness, the overall functionality makes it one of the best options in its price range.
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z
recommend!!
highly recommend if you have a bunch of pedals or other 9v gear. I've used other ones that leaked noise, this one works perfectly and gives no extra noise (that i've noticed). my most used piece of equipment! only fault is the blue lights can irritate your eyes, but it has done it's job very good.
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D
Nice portable unit
Small form factor, dual side layout for easy wire management. Reliable (used every day for a year)
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J
Amazing for the price!
A great power supply that is versatile enough considering most modern pedals are 9v normal polarity, thus I rate it 5 stars within its category; however, if you have multiple pedals that require more voltage and different polarity, I would suggest powering them separately or looking into investing a bit more. As it stands, a great power supply within its lightweight category and I am very satisfied!
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DR
Buen precio
Construcción solida y cumple con su función. Vienen la cantidad de cables necesarios, aunque me parecieron cortos los cables, pero es porque tengo una distribución de los pedales un poco particular. Si buscan algo bueno y barato, aquí lo tienen.
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