Hi I recently upgraded my speakers to polk rti8 mains. Csi A6 center and rti A1 surrounds. I went from a 9 year old Polk sub satellite package I bought new a long time ago. Mr recover is a older yamaha rxv657. No hdmi support but I've had it a few years and it's done me well. My question is this. My old Polk sub sucks. System sounds good with the new speakers but I want that low end. I also want a new receiver. I'm I really missing out on the lossless audio on blu rays or would I better putting my money towards a new sub and then saving for a new receiver? Any recommendations for a sub? A receiver? Thinking the new yamaha rxv667( to give u a clue on my budget. Sub is different story any recommendations for small room? Outlaw?)? Thanks much this is my First post but I'm a long time reader. -Bryan












