i have an NAD preamp and adcom GFA-1A power amp. 220 watts a channel rms i think. my tanzanites are fine, but i don't play videos, just cds and records.
also, my brother has some klipsch reference series speakers, RF 3.2. a big and expensive onkyo reciever. he listened to mine and was impressed. liked my system better than his. said the midrange was much smoother than his.