I have decided to forgo the M60's for now and get M22's due to recent circumstances. Speakers will be primarily for music cd and concert dvd's. I have a sub, and some other speakers that I can use for center and surrounds for now if I want to play in 5.1. Question is, will I notice a big difference using the M22, sub and vp100 for 2 channel music and concert DVD's in PCM vs no vp100? Or will I really only notice the difference in 5.1 mode?