Our cloth dome tweeter is sourced from Scanspeak and our 1" titanium tweeter is sourced from Audax. We do not use the Esotar from Dynaudio due to it high moving mass and its waterfall measurements. We are familiar with the Esotar and keep them in stock for R&D. The compound tweeter arangement we use gives us the best results with our Khorus design for keeping up with our 10" driver. In looking for a company to design our 10" woofer we sought for power transfer characteristics in order to convey the emotion of dynamic gradations. We thus proudly chose Eminence for this reason along with the ability to have a driver that is 7dB more linear than any other driver of its type. To meet our request, Eminence outsourced our voice coil, our dust cap, the cone treatment, and the spider mounting assembly. This driver has the characteristics of a midrange driver with a woofer suspension. Unless it is used with our Group Phase loading, its low frequency response would not reach below 50Hz. Most woofers are designed to have lossy suspensions with large voice coils and small motor structure trying to lower the resonant frequency. This is why we had to have our own design built by a company that has sturdy surrounds, large motor structures, etc. This enables us to have a driver that will effortlessly handle the demands of a driver with extension from 19-2200Hz allowing 1-1/2" peak-to-peak excursions, with a rise and settling time of 46 microseconds. We are very pleased with the results and have found Eminence to be very professional in their lab testing and assembly of our drivers. We have less than a 1% rejection rate and have never blown one of these woofers. I am still amazed! Thank you for your inquiry. Michael Farnsworth
