hello, I was told by many dealers and also buy Levinson that the only diffrence is power the sound is the same. But the 334 and 335 are diffrent the 334 doesnt sound as good as the 335. Also the one area where the 336 could sound better is if you have a speaker that is very difficult to drive you might find that the 336 is a little more dynamic sounding. I have seen dealers run the 39,000 wilsons a 335 and it sounded great. What is your surrounding gear? I use a 335 a 39 and Martin Logan ascents.