The need for a bias light diminishes as screen size increases. The problem with a screen that doesn't completely fill your field of view is that it tends to act like a flash light beam pointed across the room right into your eyes. With larger screens you don't have that large blackness with a small bright light in the middle.


Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris