I've heard the Epos. It is a nice sounding speaker, but given the choice I would take the Era Design 4 at that price every time. At least I think the D4 can be had for ~$400 in the USA. The Usher is also reported to be a very nice sounding speaker, but for the duration of time that you run it without a sub, you will have to be careful not to play it loud lest you bottom out the woofer, as evidenced in the Audioholics review.