Cosmic Charlie, I have a pair of B-301's and as a set of second speakers (main one's are Bozak 401's) attached to my Sansui 9090db, which is rated at 125 watts/channel. Haven't had a single problem with that amount of power going through the B-301's, even when running just the B-301's by themselves. Mind you, I'm only playing music around volume 2. From what I know of Bozak's, 85 watts/channel should be fine. By the way, those B-301's look in great shape. At the offering price, they are truly a bargain. Bozak's can sound a little flat since they don't boost the soloing intrument/voice somewhat forward, but you can use the sound adjustments on the back of the speakers and your amp to get your desired sound quality. Good luck & keep us posted.