Yes, I do experience the sound quality fluctuations a lot too. Like some posts pointed out due to the iffy power, particulary in LA area in the late evenings. I also buy the hearing thresold case on some days theory.( I have experienced it-sitting down to listen right after dancing sessions with wife and kids to some dance music). And then there state of mind theory-which also come in to play at times. But the other two remaining same , there is still electronic nuances to deal with, which is absolutely true-even if you have PS300 or some power conditioner. Here is another peculiar behavior my system exhibits: I have Home theatre/DAC processor that I use for 5 channel casual listening. I have seperate analog balanced outputs going in a sepearte two channel pre-amp for stereo listening. My MIT digital cable occassionally looses a signal due to bad connection in the HT Preamp. Here is the kicker- The system sounds (2 channel mode) sounds MUCH better( increased resolution, deep soundsatge, all the works,) when the digital cable has the good connection in to HT pre-amp, which is turned on or off. Some times because of vib or some deep base the cable might loose a connection and I can always tell due to change in sound quality. Don't tell me it is my brain because I know it is not. Has any one experienced something like this? TRY IT IF YOU HAVE SUCH A SET-UP.
Do the Audio gods shine upon you?
Has anyone else had this experience or am I just nuts? You sit down for a quiet evening of Hi Fi listening and after some warmup time you suddenly realize that your system sounds dramatically better than it did the night before. I am talking about those little things like more resolution, low level detail. You know, those things that turn audiophiles on. I am almost afraid to turn my system on again for fear that the "audio gods" have abandoned me.