Random comments:
Oscillation- if you're using Goertz cables do you have the Zoebel networks added?? Don't blame the amps prematurely...(It must be early am, I'm an apologist for Krell!) I also understand that the Halcro is more system dependent than a more "universal amp" like the Plinius. Several people I respect feel the Plinius SA-102 is the very best match for the new QUADs so the 250 deserves careful scrutiny. Again my hobby-horse right now are the Empirical cables and I would audition them immediately with eyes and ears open and wallet smiling.
Oscillation- if you're using Goertz cables do you have the Zoebel networks added?? Don't blame the amps prematurely...(It must be early am, I'm an apologist for Krell!) I also understand that the Halcro is more system dependent than a more "universal amp" like the Plinius. Several people I respect feel the Plinius SA-102 is the very best match for the new QUADs so the 250 deserves careful scrutiny. Again my hobby-horse right now are the Empirical cables and I would audition them immediately with eyes and ears open and wallet smiling.