Kdi40, are these amps new or used. My findings with cary Equipment, especially amplifiers, they need at least 50 hours before they even start to open up and 100 hours to really start sounding good. I know it sounds like "BS" but it is true. Also, the 275 bias point which you are set at is to high. I know the manual says 275 but Cary told me that the manual was incorrect, the the amp should be biased at 230-250ma you may be over saturating the output tubes, try backing the bias down and letting the amps break in. Hope that helps..........Bob
