Check this out ..driver

Yes. It also greatly depends on how much SPL and sensitivity you need, and how large can you go. I also made use for $6 driver in a tapped horn. Worked very well, good SPL. But size and weight was prohibitive for a compact boombox. So One often needs to pay little more to get more power density.

 I would definitely not load this into the SCOOP. I was thinking only about small BR box. Anyway, I´ll try to dig into the sellers offers and manners, and do my decision from that. I would post some measurements if I get some of these drivers.

//edit:

Hey. Got some news. The seller told me, that he measured coil winding height on the LSN15 recone kit, which is 18mm.

That is, I would expect pole piece to be about 8-10mm thick, which then gives us Xmax of 4/5mm real, 6/7mm “mathematical”.

That´s not very bad, but it´s not good either. I´d say it´s okay for the price, as in our country, there is propably nothing like it.  Anyway it´s not interesting for me that way. I might rather buy higher class product, or get car-hifi driver with Xmax between 8-14mm.