I have a Transparent Powerbank 6. I get some hum when I turn on the low voltage lights in the room since upgrading the turntable and cartridge to a TA Zeus MC from a Grace F-9 MM.
I just bought an old Furman Elite 15 DM to see if there's any improvement? First of all, I'm not sure the Transparent Powerbank 6 is a true power conditioner or just a glorified surge protector?
I'm going to have to do an A/B comparison between the two. I'm listening to the Furman now and things sound great but they also sounded great with the Transparent. It's just such a pain to disconnect everything and reconnect!