Yours truly here is a Gradient dealer, but they haven't given me a clue about the new "Helsinki 1.5".
It wouldn't make sense to me for the design listening axis to be in the dipole woofer's null, so I speculate that toe-in (or lack thereof) is a critical part of the system's set-up. My guess would be that the speakers are intended to be set up spaced fairly wide apart and with little or no toe-in, such that the anticipated listening area is well within the lobes of the dipole woofers' patterns.
I can also tell you that with the hammering the dollar is taking versus the euro (and the rest of the world's currency), yours truly here is probably not going to be stocking the Helsinki 1.5 anytime soon.
TAS reviewer Robert E. Greene has a long-standing appreciation for the work of Jorma Salmi of Gradient, and I would be a bit surprised if he hasn't already jockeyed for a first US review of the new speaker. Here's a link to REG's site, where you can read about some of Jorma Salmi's earlier designs for Gradient as well as the new dynamic dipole from Jamo, including supplemental measurements that didn't make it into measurement-disdaining TAS's pages:
http://www.regonaudio.com/Duke
