Disclaimer I really love the speakers I have now, looking to upgrade down the line. I have Definitive Technology Studio monitor 65 mains, and center channel, Studio monitor 55 surrounds. You probably guessed I'm a huge fan of bookshelf speakers. I've been researching and looking at different speaker brands and types. I'm between the above brands. With Ascend I was at first thinking of Sierra 2 mains and center, sierra 1 surrounds, then I was thinking why not go the extra mile and go 5 Sierra 2's. Would that just be overkill, any other combination suggestions? Any thoughts on these brands, and what they do as compared to each other would great? Thanks for any help or info.