Just received them. First impressions are:
1. Both drivers are amazingly rugged to have made it to me intact given their travel path; and
2. The Neo3 PDR is a winner. The waterfall plot does not lie: the driver is free of any lingering self-resonant artifacts and has a pleasant quick, clean decay... as compared to dome drivers, it has a nice, wide horizontal sweet spot (vertical sweet spot is a bit compressed, though.) As Danny mentioned, distortion is a non-factor. At about $50/driver, it's a silly-good bargain.
Thanks again to Danny for loaning these out.
I have shipped the N2X demo speaker this morning to the next person on the list.
They should arrive tommorrow.