Panhead, in my HT room, my left Qs8 is the only one that has a wall behind it, the two rear Qs8's and the right Qs8 are open to the rest of the room behind them. Things sound great.



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