Hi Angelo,

Welcome. The Qs8's have bigger woofers/drivers (5.25" versus 4"), so they will perform better in the bass category. Also, they can take an amp upto 400watts versus 175watts. There are a few other differences, if you check the specs on the product page. Keep in mind you can order from the Factory Outlet and save 10%.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85