Have the small "The One" model. Same driver, but just one per channel. Have had a lot of experience with single full range speakers. These are exceptional on how well they play at the lowest gain, really. They are smooth without any peakiness in the upper mids. Audience evolved from using Bandor(which I've had also) drivers (which have a lineage to Jordan drivers). Thus, these have that speed and smoothness--I'd buy them if I weren't so content (and financially restrained) with "The One".
Also I've formerly had the Quad ESL, and yes they've similarity.