Hello mb85, I know this is an old thread but I own a set of the Unicorns Ohms B2 speakers and they are amazing. I spoke to John at ohm who was very surprised that I have a set. I was asking about recapping the speakers and replacing the 6.5 on top so he gave me the advice on what i should use for recapping and the I order the replacement pair of 6.5 from OHM’s. John said there are very few of the B2 out there, they were his most efficient speakers ever, and I would say this is very true. Very easy to Drive and the sound stage feels like you are front row at the concert. I can add pics if you respond.