Hi, Tls 80 are big, depend the size of the room, Tls 50 mk1 are a very good speaker, I own a pair of Mk1, have the B200 sp1014, the Mk 2 woofer is mostly the B200 sp1039 big magnet so they probably take more power. I just bought 2 sp 1039 and I will install them in my Mk1. But I have never have...