I've owned the fully modified (Mitch) 834P and Rhea. I did not think the Rhea was noisier than the 834P. In comparison, the 834P isn't really all that quiet. The Rhea was more dynamic across the frequency range. Much more bass extension. However, I think the 834P was more even in the presentation of the frenquency range it does support. The mid-market Aesthetix gear tends to push out, or emphasize the mid-range which can work very well depending on what music you listen to and the rest of your system. I could be wrong, but I don't think battery powered pre and phono stages will be fast enough to respond to really dynamic passages. Maybe with enough capacitive storage.
I would venture to guess that the K&K is better than the 834P (even modified), but it is just a educated guess based on Kevin's work. The only way your will ever answer your questions for yourself is to get some of these into your system.
I would venture to guess that the K&K is better than the 834P (even modified), but it is just a educated guess based on Kevin's work. The only way your will ever answer your questions for yourself is to get some of these into your system.