Strange Oscillation

My only reason for saying iso was just a "try it thing" I have a cple cds when I am getting down I get nervous at certain points because they have let loose a serious ocilation in the left driver at dam near the exact time ( not clipping my amp not even close).I always figured i was pushing it too hard and overdriving the driver .But it again happens in a cple select cds .You seem to have iso I still would pull the maple and iso and try it if its not hard.I doubt thats it ,it’s probly in the cd.Do you have another setup or another freind to try it on? Not mine lol ... good luck

Falconquest, I just checked - it is clean. I used high volume on headphones and speakers.  There is a lot of sibilants, more vivid with headphones, but still clean.  5:19 high voice note is very clean.  You could clean laser with laser cleaning CD.  I was suspecting time jitter of digital signal, that converts to noise, but it would shows in unpleasant sibilants first.  I suspect, that you have some system or room resonance at this frequency.  Try to eliminate things.  Is it tweeter?  Is it in both channels?  Can you borrow another CDP or rip it and play it from computer or the phone?  Better yet, can you take this CD to a friend?  

kijanki, I think you are on to something when you mention system or room resonance because that's what it sounds like. It's almost like a feedback loop is occurring. If you think about it, the high pitch frequency output from the speaker may be establishing a resonance inside the CD player but since we're talking about a sound frequency vs. light frequency, I can't imagine they would interact. I get your idea of switching CD players etc. but in essence I have done that by switching out CD's. The MFSL DSOTM CD has no issue while the Redbook CD does. I can crank the volume on the MFSL CD with no problem. It has to be related to the CD itself. I'll try the cleaning idea and report back.

@falconquest Another idea would be to try that specific CD in someone else's system.

Falconquest - much of this thread points to issues unrelated to my comments below, but there are a couple of comments which made me wonder....

I do have first hand experience with a problematic Ayre amplifier and internal osculation issues.

The amp actually blew some internal components and the reason was the speaker cables, which had a sufficiently high capacitance, caused the amp to "oscilate" to a degree that some internal components were overloaded.

The cables in this case were from Cardas - replacing the cables with a pair of a lower capacitance resolved the issue completely.

The amp had previously been working with the Cardas cables, but the introduction of a high quality power cable was just enough to provide enough electrical energy to put it over the top.

The amp is now working perfectly well with the new power cable and a new pair of lower capacitance speaker cables.

BTW, the owner of the amp had also tried the Cardas cables on another high-current design amp and blew that amp also.

This oscillation issue is well documented on the web and effects only those solid state amps of a high current design - Ayre being one of them.

I don't know if this is your problem, but it is pretty easy to rule it out - simply try installing a different speaker cable.

Hope this helps