The Ethos line is the first line of drivers DSS has available. This line offers 32.5mm one way xmax and a recommended power rating of 1,800 watts. The 15 runs $355 with shipping included. Below are a few pictures and specs. We use "warm, large signal parameters" for box modeling as it provides a MUCH more accurate representation of how the driver will perform in real life. After all how many of us on run one watt to our speakers. The only spec NOT to use is the Re of the driver. Cold this configuration is dual two ohm. If used under the impression its a dual 3 ohm coil you could shut down your amp when it's cold. I will working on stream lining all this info in the near future.