It depends, you need to test different angles and used what sounds best. The front of my theater room is about 15ft wide, and I have my 80's toed in just a little bit. For me, to much toe in affected the sound for the people sitting off to the sides and those respective speakers.

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