New RCF bass neo drivers 16"/19"

The smaller 19 is available at TLHP by two pieces. But its parameters seem off. The math aint mathing there with Qes and Bl. I'm waiting for next RCF reception at TLHP, which should be around the corner, if those 16"s arrive too.

Getting spiteful though. SoMeOnE is putting 18DS115 in 80l(net) bins soon. 

Lately I was digging into drivers overexcursion modes, and found out that even the stiff 18DS115 with fairly longer coil was flying at average excursion of 20mm one way, peaking at 25mm in B&C Speakers LSI/Klippel measurement. Not even thinking using it that way, but maybe, 15mm one way RMS peaks might not be that harmful for such driver. Also it doesn't add up with the Bl curve with such long coil. It looks those measurements (along with Kms) are not perfectly isolated. Almost all coil in the gap should not cause 50% Bl drop. A lot to learn, still...

The LN19S450 Bl figure doesn't add up in Hornresp. Can't properly simulate I put paws on the physical driver. 

Still eyeballing the S450 almost daily. Can't wait to get my hands on em.

I am excited for LN19S450, but as it is not coming, my patience running out, my frustration growing.

Already selling LF18X451s, wondering if I would/should go for 21"s again.

21DS115

San215.30

San214.50

Still possible. I would like to, but RCF being quiet 9 months about their drivers is too much. It looks LN16S400 is scheduled for next two weeks, so maybe these come together. If not, I will have to move on with 21"s.