I have very little experience with phono amps, since the built-in phono stages of my preamplier (Parasound P6) and receiver (Marantz NR1200) have satisfied, meaning they seemingly are producing appropriate and uncolored gain from all of my carts: Shure V15V-MR, Shure V15V/SAS-B, Shure V15 type III/SAS-B, Shure M97xE, AT-OC9XML, andAT-VM540ML. So far, the cart I like best is my Shure V15 type III/SAS-B. It delivers an SACD like sound with a little airier sound stage than I realize from SACDs.