Well I have more of an open room concept, which is just killing me in this new house. Anyhow I really went with support's advice at SVS. Once I gave them room dimensions, layout etc., they recommended the Pinnacles over the Ultras. Only for the towers though. Me being a novice, I went with it.
your right, more on avr/amp than the speakers. Let's see how it sounds and I'll be sure to relay my feelings.
Thanks.