200 Watts is good with ATC. I am not familiar with ATI.
The 4003 is more of a traditional audiophile design. Class D amplifiers are not yet mainstream for audiophiles but they can be brilliant. You have to consider that Class D, even if done to perfection, will likely inject more noise back into the rest of your system through mains and ground loops etc.
The 4003 is more of a traditional audiophile design. Class D amplifiers are not yet mainstream for audiophiles but they can be brilliant. You have to consider that Class D, even if done to perfection, will likely inject more noise back into the rest of your system through mains and ground loops etc.