Anyone here have any experience with the Neat Motive line of speakers? I recently heard a pair of Motive SX2s paired with a Unison Research hybrid amplifier (80w). I liked the sound but came away with the impression that they need more power. Anyone here have any experience with these? Would appreciate your thoughts on amplification needs. May well be that the amp I heard them with isn't really 80w or that the amp is fine but these speakers just don't go that loud in a large room