I am finding myself making gradual improvements to my system, the latest of which is a CD192 cd player. I recently had a home demo of a 192 and I noticed small improvements - more texture and depth to bass, improvement to cymbal and guitar transients and an overall smoothness to the listening experience - all of which were subtle but noticable - so I bought one! Does anyone know if the CD192 supports HDCD? There is no light display to indicate that it does when I put in a HDCD> The next upgrade question is whether a P90 bi-amped to the AVR300 is going to make a noticable difference and if so - by how much? But I have to take in to account that my speakers are already bi-amped by the AVR300. Using the P90 would leave the 6th and 7th channel redundant. Another thread on this forum found there to be no improvement.