I'm looking to start my first HT 6.1 system. I have a SVS 25-31PC to start. I have looked at B&W 601, Energy Encores, AxiomAudio M22ti/VP100/SQ4 and the Aperion 522Ds as speakers for it. Question is the Aperion uses the same speaker all around. Is this a good practice? Seems the center would be lacking. My budget is about $1000 for the 6 speakers. I may go used or blems to keep cost down.