Before changing any equipment following Dekay's advice. Speaker placement and vibration issues are the most effective tweaks. Your interconnects and cables are fine, they should be the last thing you need to change. After you address the setup issues your next step is to upgrade your source. But I suggest that you wait until the new digital formats have settled out (maybe 6 to 12 months). Your system can be upgraded, but your budget is insufficient to effect a fundamental change. New cables, cords etc. could help, but they are halfway measures. By this I mean they could produce an improvement in sound in your present system, but they might not survive your next level of upgrade. Be patient and take your time. New equipment is not always the appropriate answer.
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