AUDIOPHONICS LPSU25 Linear Regulated Low Noise Power Supply USB 115V to 5V 2A 25VA - reviews - There is 1 review.

Compact, well-designed supply
I had been using a bulkier, much more expensive linear power supply for a standalone Pi music streamer (Pi 2 + touchscreen + S/PDIF output hat). That other supply worked well, but I was intrigued when I saw this LPS. The order process and delivery to the US were fast and efficient. When I set the supply with the intended system, the touchscreen signaled low voltage. It took me a while to notice the brief text on the website about the (very small) voltage adjustment screw. After adjusting the screw, the under-voltage is gone. Overall, a good product at a good price, but it would be nice to have better documentation about voltage adjustment/voltage range.