Brent I'm running a 150 below and a 100 above our 73" RP/DLP TV that works great, it's a 3.43ohm load on our HK/AVR645 and the receiver drives the load with ease .... with the single 150 either above or below the screen I could locate the dialog coming from the single speaker but with the addition of the extra 100 the dialog is better centered to the screen.
Why a 150 and a 100? Because I was using the 100 in a smaller room and upgraded to a 150 whenever the system was moved to a larger room, kept telling myself that I'll soon get a second 150 but the 100 seems to work just fine in the interim.
