It claims a response of 50-22KHz +/-1.5db.
Very few passive speakers under $1,000, let alone $2,000 fall under that--assuming those are verified specs.
Though the claim does seem a bit bold considering it uses a 5" kevlar driver. Not that I believe the specs are falsified, but honestly I've never seen any non-DIY bookshelf at any cost measure up to these specs, particularly with a 5" driver.
Which is why I am not in the least surprised there are no measurements available anywhere online of this product.
Generally speaking, a company that has the gaul to produce a spec sheet that says +/- 2db or +/- 1db will produce a measurement graph to show that it is in fact the case. The fact that such measurements are lacking, and that even Audioholics chose not to measure them in their review (despite the fact that they usually do so most true high performance speakers) probably says alot about the product.