Thiel Owners

A Blessed and a Happy Thanksgiving for all our USA friends.

George

Someone pointed me to Bang & Olufsen Uni-Phase xover design.  At least based on theory, the filter will be able to achieve 0 degree phase shift across the frequency band, hence the name Uni-Phase.  I have not seen the step response but the square waves all look very good - not too unlike that from a time-phase coherent/time-coincident design.

Unlike the Thiel or Vandersteen, though, the Uni-Phase uses 2nd order filters, not first order filters.  The advantage is 2nd order does not stress out the drivers as much as first order filter.  

For reference :  https://www.tonmeister.ca/wordpress/2015/10/29/bo-tech-uni-phase-loudspeakers/

Happy Thanksgiving! All

andy2

Very cool project going on out there. Thank You for posting all of the links.
Looking forward to the operational prototype. Have fun!

Happy Listening!

Preliminary report from Lexington. Rob is well equipped and stocked with knowledge, experience and parts. A truckload of spare parts was delivered from Audio Consultants - what a score! 
We spent some time comparing CS7 to 7.2. More discussion can follow; don’t hesitate to score a good deal on the original 7s.