Harley Benton PowerPlant ISO-12 Pro

The Harley Benton PowerPlant ISO-12 Pro Power Supply is a good product. Just the thing for keeping noise out of your pedal board setup.

However, beware that it comes with a wall wart style power supply with a European input plug. While the box it comes in says there are USA, Europe, UK and AU plug choices, there aren't. The other plug choices are not available, and you don't get a power plug choice when you add the product to your cart. It would be nice if the product came with a wall wart that let you use the power plug type you need, as do many other products these days, but it doesn't. If you're in the USA, UK or AU, you'll need to use a plug adapter, or buy a suitable wall wart locally.

The other thing you may need to consider is that the 12 supplied power connection cables to go from the PowerPlant to your pedals are 60 cm long. On a pedal board for 12 pedals it wouldt be useful if some of the power connection cables supplied were longer (e.g. 90 cm).

I have a few power bricks for guitar pedal boards, One-Spot CS-7, Tone City Substation, as well as smaller power devices such as the 1-Spot daisychain. I've had quality devices, such as the CS-7, and not so perfect things like the Substation, which is quite noisy.

Thomann's Harley Benton PowerPlant ISO-12 sits comfortably with the One-Spot CS-7 in that "zero noise/plenty of options/good overall power rating" category - but at about half the price! It's also a great deal less bulky, which allows it to fit below even small pedalboards with ease.

All the power cables are supplied, and with 12 outlets that is a lot of cables. The ratings of individual outputs also permits some degree of daisychaining since there is enough juice for at least a couple of pedals per output unless they're digital monster-pedals. You'll need to find your own daisychain cables though, if you go that route. With 12 outputs it is unlikely you'll need to daisychain anyway.

Three outputs are switchable voltages, 9/12/18, 9 for typical pedals, 12v for things like Boss pedals, and 18v for anything that can handle it, such as my Xotic SL Drive Red, which gains a lot of headroom when it runs at 18v. Outputs can be combined with a suitable 3rd party splitter cable used to join the two outputs and feed the current to the pedal.

For me, using this on a pedalboard with mixed CPU pedals (Empress Echosystem) and normal cuircuit pedals, everything plays nicely together with no extraneous noise, every bit as good as my 1-Spot CS7. I'm very happy with the unit so far, and a friend tested the isolation aspect and gave it the thumbs up with regard to the isolation, since some power supplies, including some older Harley Benton models, are basically just daisy-chains in a box.

I like the simplicity of use, and also the separate transformer/plug, I like the LED indicators that would highlight circult probems nd, with the transformer elsewhere, the slim profile works very well on low-profile boards.

It's a winner.

Great price point, it does what it promises to do, it delivers. One suggestion would be that instead of / along with the "normal" power cables that are included with the power supply, power cables with flat angled pedals should be included as well, so pedalboard management would be a bit easier. I understand that doing such a thing might cause thomann to lose sales from people who buy angled power cables individually, although such a move would definitely set apart even further (as if the afforable price point hasn't already), Harley Benton from the competitors. Of course the pricepoint would be higher then (hopefully not by much), but I think it's worth giving such an idea a thought.

The Harley Benton PowerPlant ISO-12 Pro is a powerful and reliable guitar effects power supply that offers a wide range of features and high quality performance at an affordable price.

One of the main advantages of the ISO-12 Pro is its versatility. With 12 high-quality isolated outputs, this power supply provides stable and clean power for all your effects, minimizing noise and interference. It also features a variety of output types including 9V, 12V, and 18V, making it compatible with a wide range of guitar pedals.

Another important aspect is its compact and durable design. The metal housing makes the ISO-12 Pro durable and sturdy, ensuring that it is protected from damage during transportation or use on stage. In addition, its compact size makes it easy to mount on your pedalboard, saving space and providing ease of use.

Not to be overlooked is its safety. The Harley Benton PowerPlant ISO-12 Pro is equipped with overload and short circuit protection, ensuring the safety of your expensive guitar effects and equipment.

Overall, the Harley Benton PowerPlant ISO-12 Pro is a great solution for guitarists who need a reliable power supply with multiple outputs and high sound quality. It combines functionality, reliability, and affordability, making it an attractive choice for musicians of all levels.

This does the job. Is nicely packaged in the box and all and looks great. I bought this to replace an Artec power brick as the one they now sell does not have enough outputs. I needed 10 outputs and also some with high value. I have this slung below a Palmer pedal board. The only real things are that all the connecting cables are the same length. With the Artec there was varying lengths as some of the pedals are closer to the power supply than others. Now there is a load of overhang of cables that just get in the way. Also the cables do not plugin very well to the brick. They are 90 degree angled on one end. For me that end must go into the brick as there is no more space under the pedal board. They have fallen out more than once from the power brick. I am going to have to sling some insulating tape over them to keep them in place. So ok but not completely happy.

I made the initial mistake of ordering a different power brick based on whether or not it would fit under my Aclam Style pedalboard (the Guitto GPB-03B). In the end the other brick fit, but it just was not sufficient (not enough outputs, not enough power options).

After this experience I ordered the Harley Benton PowerPlant ISO-12 Pro based on three things (ignoring its width and length and only taking height into consideration):

1 - isolated outputs
2 - number of outputs
3 - output power options
4 - its height (will it fit under the board)

Even though it did not fit 'into' the rail under my board or with the supplied attachments for a power brick, I simply mounted a lid of an Altoids tin into the recess which made it flush with the board and tied it down on the underside with some bungy chord which is the easiest solution ever, looks neat and very easy to adjust, remove etc. It fits perfectly under the board with spare clearance.

I could not be happier - no noise and super easy power management. Considering the price I might very well order a second one as a backup even if I don't need it for a few years!