Yep, I've designing and building speakers for 30 years so maybe that is a factor. I've had some conversations with Vasken and he has been very helpful. When I brought up the price of the passive radiators he said he dully understood and they are not in the business of selling parts.
All that said, I was just wondering what other owners thought about how to set these up and how much power they need.
Since I posted the first post I've come to greatly appreciate the clarity, detail, room filling sound. No what I am use to but I like it more and more each day.
I'm driving them with my Bedini 150/150 MKII amplifier with passive preamp. I'm going light on the volume because all 4 PRs are gone.