Thomann NT 1215

Well, you'd guess there isn't really too much to write about a power supply, and there isn't, but I've got some bullet points I can develop about the experience I have had with the Thomann NT 1215.
I purchased this power supply altogether with the Yamaha DD-65 and I really appreciated that the bundle existed when I did. I still do, actually. Despite that, I have had some issues with this power supply working along with Yamaha's product, at least: when I plug it into the power, it always makes a static noise for about ten seconds. It's really strange as it happens everytime, but there is no visual sight of light, just the noise really. What is stranger is that this also happens with a friend who has the exact same gear as I do at his own place. This is one of the two problems I have found.
The second problem is that the electric drumkit I mentioned before also disconnects from time to time, and I have to suspect it has something to do with this particular power supply.
Nevertheless, in general I am quite happy with its performance. My friend has had it for over two years and I feel like it can last that long. The problems I have been having might not be related to the product in its core, but I'm just warning you about something to watch out for. 3/5