Not to be a stick in the mud and maybe I missed it, but I'm still waiting for any comments on the 2-way Dyna 10. Just a single cap xover and 91 db efficiency would seem to make it a solid winner. But 
The site say only 90dB/8Ω what will need 100W Solid State.
Iam in the FR game because the cross-overless feature, so to me a sole cap or resistor in not a upgrade or desirable.
But certainly is a great upgrade for those audiophiles coming from a commercial two way speakers with a regular cross-over.
Said it, the Dyna 8XRS is way more convenient to small amps at 98dB and yet have the benefit of single point source, no Tweeter and less price.
Junior 8XRS Specifications
Sensitivity: 98 dB at 8 ohms
Impedance: 8 ohms
Driver: Proprietary Omega RS8 Full-Range with ferrite magnet
Frequency Response: 38-20kHz
Dimensions: 38"H x 12"W x 7"D
Weight: 35 lbs. each in a shipping box
Power Requirements: as little as 2 watts
Crossover: None