I have heard the linn and spectral, as well as plinius gamut etc. Also the advantage I believe at SOM but not 100% positive about that.

The problem with the MB2s is that they are hellish to drive comapred with the PMCs lower down the range. I am not sure about the ib1. The nap 500 cuts out at about 1030 on the volume control with the MB2s.

Pass have a good reputation.

As I am going active it makes sense to stick with bryston amps and crossovers for now. In the longer term I may have another solution lined up...

I have ehard a heed system - it sounded "nice" ... but I suspect I couldnt get past the omni speakers characteristic sound. Not to my taste. I hear good things about their electronics though.