in what looks like a parts express cabinet for 4k a pair.
When i 1st saw thise some time ago i thot the same thing. A bit of research shows that they are not the same dimensions.
The curved PE cabinets are way better than the monkey coffin ones, good value for the money, but they are merely OK in my estimation. The 6 ply MDF play on the curved sides works pretty well, but it is very low grade MDF, and has fairly high energy storage. It is also very suseptable to dramatic chips.
Not nearly the downward dynamic range of a well built quality multiply cabinet... you pays for what you get.
If you look at the economics of what it costs to put a speaker into a bricks & mortar hifi store, then $4k is a beleivable price. The direct from manufacturer model (made feasible by the internet) strips at least a dealer margin off the end user price -- i'm a firm believer in this model, and Rick is one of the 1st to make a success of it. I find that almost any speaker you find in a retail shop to be expensive.