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 just received my unit. It does not work. After some troubleshooting, determined that it is the power cord/adapter. The unit itself does work with a different power supply. However, the flow of current or electricity is not proper for some of the units because some are "ON" but don't work at all and one goes off after a few seconds. There's something very specific about the power distribution and this specific cord. I shouldn't have to research this and spend time/effort finding one when I've already purchased something for that purpose. I've contacted the company for a cord solution. Now we wait... 10/15/2024 UPDATE Donner Music (the company), ended up reaching out to me after I had sent them a note and followed the proper channels for product support. I had unfortunately already returned the item as it had been several days with no response. Long story short, they apologized for the delayed response, offered to help (if I still had it) and offered to send me a new unit to try out. The new one showed up a couple of days later. It worked just as expected. I've been able to plug in all the pedals I'm currently using for my rig, making the entire thing more efficient and "clean" which is what I wanted. Thank you DONNER MUSIC for stepping up and making things right. It is a "no brainer" type of product and so far, it works for me as intended. If you have multiple stomp-boxes, pedals, etc., to your instrument rig, I seriously recommend taking a look at one of these units and giving it a try. The LED lights give it a nice touch not just cosmetically (as it does look nice), but it gives some much-needed light when you're in a dark stage, studio room or other situation like that. I hope this helps those of you who are researching it or on the fence about getting one.

I own 2 and no problems powering my pedals ! Happy with both !

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.

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.

Good, simple power supply, small profile, I like it. My only issue is that it only came with one 1/8" connector and I need at least 2. Can't seem to find where to get that online, not sure what it's even called. Any ideas?

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!

Compact and easy to use. Performed exactly the way it should right out of the box. I picked it up in the morning and was playing at a function that afternoon, no problem at all. Beats batteries any day.

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.

Great works as it should great value