This is the best portable speaker money can buy and for $200 you better be serious about your mobile audio needs. My ultimate goal is to have an always portable sound system so if I want to have a random party in a parking lot I can do it for fun. I'm going to test the Foxl when I get it and if it works I'll hook up two using:

The Headroom Total Airhead amp. On a $400 setup I'm going to want to make sure I'm not just splitting my signal in half on 2 speakers. I'm going all the way with this! and for extra on the go power:

4000mAH Duracell mobile battery charger!