75W & 100W probably not much difference in power. I have S805s and there was only marginal differences betw. 300W (bryston), 150 W (pass), 100W (ARC VS110). I have a bookshelf with medium sized room so floorstanders 803 and up are different. It more important to choose the timbre you like. Bat is darker & sweeter, ARC perhaps more neutral. ARC still blooms more than Pass. Pass is a very natural sounding SS. Much better IMHO than Bryston.
