Right now I'm running a Klipsch Synergy system with SF-1s, an SC-1, and SS-1s. I don't have a subwoofer. I've never really been a huge fan of the sound of the Synergys, but they are alright. I've listened to the Polk Monitor series and really like the sound so I'm thinking of picking up a pair of Monitor 70s and a CS2 center channel. But I also want to get a subwoofer eventually and am thinking of the ED A2-300. I only have enough cash to upgrade one at the moment though so the other will have to wait about 6 months to a year. So would I be better off upgrading the speakers first or getting a subwoofer? I'm leaning towards the speakers as I'm told the Monitor 70s put out a good amount of bass on their own.