KEF ls50 meta’s are on the way

the attenuation is down to 620hz not just the range of the tweeter

How do you attach the absorber to the drive unit so that it stops absorbing below 620hz? I dont see how that works.

The white paper covers the implementation pretty well. If you have questions best to ask the experts ie the engineers at KEF. I suspect you would get a response if you inquire.

   Interested in hearing the Metas. A close friend had a pair of LS 50s in his office, Exposure components upstream. I really enjoyed them. If the Metas are appreciably better, they will probably set a new standard in their price class. 

You cant absorb down to just 600hz and call it a day. What abut the range from 600hz to 50hz? Why is it okay for that to be ignored?

Exciting stuff!  A weak point for the Passive LS50’s are the lack of low bass and dynamics.  
The new metas look to be like some incredible speakers.  I can’t wait to see some reviews on the Wireless version Hopefully they got the app figured out.

These look to be very interesting...