Hi Gary, happy new year. I am curious what you are using for midrange in the new series 2 speakers? Did you buy up a bunch of BG drivers or is it a brand new design of your own? I think you had said it was the latter. BG drivers are fine on my G201 for now, but always trying to work through potential failure points. Would these new midrange drivers be a drop-in replacement for the older BG units or would x-over changes be necessary. Thanks in advance.