I second this Lps. I bought it for my pair of FMC’s and it made a very noticeable improvement. Prior to this Lps, I tried the ifi ipower wall plug Lps and it made no noticeable improvement in my system. Fyi- This identical Lps unit can be bought under a different brand on Aliexpress for $62.
BRZHIFI SUPER 3.5A Dual Output Low Noise 25W DC Linear Regulated Power Supply 5V 9V 12V