Problem when volume turn up

Turn it up a "1/4" from what level? You say it works fine at "moderate volume". I'd have to agree to the amp shutting down via a protection circuit. If what you are experiencing is not a result of you trying to get higher SPLs than the system is capable of: You may have a defective protection circuit. Contact Dennis Had at Cary(technical_support@caryaudio.com). I've found him to be very helpful/customer oriented.

Hi, Does this happen no matter what source you are listening to?

It happens anytime, either as soon as I turn it up or playing for a while, 1/4 from zero. When it is up less than 1\4, everything is normal, no issues. I only have one source, thats the CD player. I have already called Cary and they are researching. thanks everyone for the feedback.

What CD player do you have and does it have a volume control?

Have Ayre CX7e, no vol control, running everything in balanced mode.