I took home the EP400 that was sold in the charity auction, surprisingly it was one of the subs used at the show and not a normal black vinyl one.
The sub isn't going to be taking over LFE duty from my SVS Ultras, but I did graph it in REW and it is solid all the way down to ~19Hz, dropping off like a cliff below that. The woofer will really move if cranked up, especially since I needed to set the room trim to Full to help balance the upper bass frequencies.
At first glace it's easy to say "oh it's so cute" but when you go to pick it up you realize it's not your typical 8" subwoofer.