02-21-11: Peterayer
Johnb30,
Congratulations on your new amps.
...
I often turn my amps on about 2-3 hours before I listen and then I'm pretty sure any improvement during the first hour is from the cartridge. I dare say it is similar to what I hear when I switch from CD to LP (sorry, couldn't resist).
Perhaps you need a better DAC (sorry, couldn't resist) :-)