Donner DP-1 Guitar Power Supply 10 Isolated DC Output for 9V/12V/18V Effect Pedal

Works great so far. Has 7 100mA outputs and 3 extra outputs for more power hungry pedals. It is compatible with all of my pedals and the voltages are all adequate for the pedals that I have. No power loss, sag, or noise issues with this unit as far as I can tell. Outputs are easy to switch in and out and the unit itself is quite versatile. I appreciate the ability switch the lights on an off as well. I understand that it's not true isolated output power supply but it sounds great and has eliminated a lot of issues I was having with a one spot daisy chain. It's extremely affordable too which is nice since most boutique power supplies are coming in at $150 plus. I am really happy with this unit and am going to buy another one.

I'm here to buy another of these to use with my home setup. I bought one for my gig pedal board back in 2022 and (knock on wood) never had one single issue with it. Still going strong. Solid, dependable and no noise. Works for me. I love the blue lights.

Good value for good performance. I velcro’d mine to the back edge of the effects pedalboard. Neat and sweet.

Update: As others have pointed out, this is clearly NOT a truly isolated power supply. As Mark says below, maybe "Individual outputs" would be better. That being said, I've been using it for about 11 months now and I've got to say, I like it a lot! It's never failed on my, is producing noise-free power, and has enough ports to handle pretty much everything on my board that doesn't have some special power need. Plus, the LED lights are so bright that I mounted it on my board so that they basically illuminate most of my pedals. So, your results might differ, but I've been very pleased. I'm keeping it at 4/5 stars because it is not truly isolated, as the company clearly implies, but I still think it is a good deal and well made. Original Post: I thought I'd try this out before dropping $$$ on a nicer power supply. At this price I figured it was cheap enough to risk it. I doubted that it could really have isolated plugs for this price, but I think it actually might! I'm no electronics wiz, but from the insides it does indeed look like the different plugs are separate from one another. I've not tried to test it out by purposely shorting anything, but so far it sounds good. I was previously powering a lot of my board with a Boss tuner with the daisy-chain power. That worked OK, but I did get some interference at times. I haven't been able to test my board out many places yet, but I do think it is quieter than it was. Directions have a load of stupid spelling and grammar errors (typical for cheap import), but I was actually impressed with the build quality. Honestly, when I opened it up I expected a daisy-chain of spliced wires inside. Looks a heck of a lot better than I expected! Overall, I think it is worth a try for folks who may not need a pro-level power supply but want something small and slick.

Great for the value highly recommend if you are in need of one

The only way to make it better would be a second, higher 12v mah rating. The blue lens are very bright on dark stages which can either light up your pedals, or blind your view of them depending on how they are pointing so I left the leds turned off.

I have 5 pedals on the board, they are high quality pedals too, i daisy chained them, my amp and the chain runs on the same outlet, when i unplugged the board the amp was dead quet, plug the board back in even if unplugged from the amp and i got a nasty hum, while the hum is still present about 80% of it was reduced after i powered everything with the Doner block, seems to be built good too, no complaints.

Zero issues so far. Comes with everything you need to power multiple 9, 12, or 18 volt devices. I use it for multiple guitar pedals and it gets the job done.

Fonctionne a merveille. Pas bruyant, simple , bonne qualité, petit prix

good brand and quality

I was looking for a cheaper alternative to the stupidly expensive power supplies on the market. This one is works perfectly fine with my 8 pedals which are mounted on a pedaltrain JR. It's incredibly light and slots nicely either underneath the board or on top next to the other pedals. Great buy!

Excelente fonte! Me ajudou muito com os ruídos.

Bought it with high hope. But what a let down. The 12v does not work when i connected 4 9v pedals. If i only use the 12v, it works.