Hi, I'm new to Klipschorns. They are highly efficient and not much power is required for high db, I get that. However, I'm putting together a 5.0 HT system and I'll also be using it just for plain old 2.0 stereo. I'm using the KHorns for the mains and La Scala's for the center and surrounds for the 5.0 system (for both music and Video surround sound). I'm looking at using the Emotiva UPA-700 which is rated at 80 watts per each of 7 channels. I'd bi-amp the mains using all 7 channels.
My question is: Is 80 watts per channel going to be enough to provide the head room required for both music AND movies? Do I really need more power like using 7 mono-blocks like the Emotiva XPA-100 which are rated at 250 watts?