iFi ZEN Phono | Phono Stage
The Zen phono, with iphono upgraded power supply, sounds excellent with my Denon DL-103. I had been using a Denon AU-300 transformer, but the Zen on setting 4 sounds better: more depth and body to the sound, better sound-staging. Also tried with an Audio Technica MM cartridge on setting 1 with similar results. No discernible noise on either gain setting. Can't vouch for the rumble filter, since I don't listen to warped records, but I could hear no negative impact from it. Note: to turn the ifi Zen phono off, it takes two pushes -- there's an explanation on the ifi support page.