R
A bargain, but I would go with the ISO-2
It's good to be buying a power supply for a price that seems right! I had been using a daisy chain and it definitely is something else. I power 7 pedals, analog and digital (including a Line 6 M5 which originally comes with a 500 mA adapter) and it's dead silent. I don't know if it's truly isolated or not in the end but I have no reason to think otherwise (except the low price).
The unit looks very good, though I could do without the (bright) LEDs.
It's pretty compact, too.
The main annoying thing is about the cables: 1) they're all the same length, which means some are way too long, and 2) only one end is angled, so if it stays on-board, that eats a significant amount of space. This is made much worse by the fact that there are plugs on both sides of the unit (which at first seemed cool to me). For this reason, I am considering switching to the ISO-2.
The unit looks very good, though I could do without the (bright) LEDs.
It's pretty compact, too.
The main annoying thing is about the cables: 1) they're all the same length, which means some are way too long, and 2) only one end is angled, so if it stays on-board, that eats a significant amount of space. This is made much worse by the fact that there are plugs on both sides of the unit (which at first seemed cool to me). For this reason, I am considering switching to the ISO-2.
6
0
Report
I
not so great for what I need
I am powering up Mooer Yellow Comp (10mA), Nux Mg30 (≤ 400ma), Nux Queen of Tone (52mA), UAFX Ruby (400mA) and UAFX Enigmatic (400 mA) which totals 1262mA, which is less that what the ISO 1 pro can power, but the ruby and enigmatic are getting rebooted all the time because of current fluctuation I guess. There's something wrong with it and don't know if I can fix it.
0
0
Report
P
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!
0
0
Report
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.
0
0
Report
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.
3
0
Report
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.
2
0
Report
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.
0
0
Report
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.
2
0
Report
C
Second time lucky?
I bought one of these power supplies for my small board, owing to the excellent price and decent reviews. The first I bought was a dud, and died within an hour of use (constantly dropping power) but Thomann quickly sorted me out with a replacement, which so far (touch wood!) has had zero issues and is working great. Nice slim unit for fitting under a flat board, plenty of power outlets and most importantly, zero noise or hum!
0
0
Report
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.
0
0
Report