Truetone 1 Spot 9V/DC

Update: I had already switched to other power supplies such as Voodoo Lab and lately Cioks, which are both excellent products. Therefore, I never used the Truetone for about 4 years and it was staying in its original box.

So, I decided to sell this and just tested it. It was dead again. I think it's not even close to being a reliable product. Thomann offered a new product even though the warraty was already expired. Thomann is the best of the best, thanks so much!

Overall, I don't recommend anyone who is looking for a reliable power supply. This is not it!

My original review:
I bought this along with an ENGL Cabloader to use with my ENGL E570 preamp. E570's built-in speaker emulation is pretty outdated as you can imagine.
So Cabloader was definitely an excellent choice. However, a couple of days later, either Cabloader or this adapter stopped working. I wasn't able to troubleshoot the issue as I didn't have any spare adapters.

I had to return both items and Thomann sent me new ones immediately. (Thomann rocks!)

This time, everything has worked so far, no problem. However, I noticed the adapter was generating a hissing, almost like a sine-wave sound when plugged in. This sound comes from the adapter itself, not from any sound source.

Also, there is a lot of noise generated when used within the system I mentioned.

I must say, I have fallen for the user reviews with high scores.

For this reason, I'm giving this item 3 stars. I wouldn't recommend this adapter personally.

I have already ordered a Voodoo Lab Pedal Power X4 instead and will definitely publish an article with proof of my claims about Trutone and do a comparison.

Once again, it's been proven that you should invest a decent amount of cash in this kind of equipment.