I agree with getting rid of the mid fi polks for something more hi end. Sell the Polks & throw in another $700 to get somthing decent (there would be many different speakers to choose from which will walk all over the Polks). The Polks simply don't do justice to the rest of your system ...no offense intended.
Best upgrade for the money ?
My system is currently comprised of a Sim Audio integrated amplifier, Micromega Stage 2 CD player, and Polk speakers. I'd like to improve the overall sound of my system but don't know where to start. I have good not great interconnects - Wireworld. My speaker cable is MIT(again better than average). I'm using the power cords that came with my equipment. Can anyone suggest where my money might best be spent to upgrade my system. I guess what I'm asking is what would have the most impact for say 500 - 700 dollars. Tweaks, better interconnects, higher end power cords? Any and all input would be helpful. Thanks - Rob