Usher Be20

The RMAF Exemplar demo used Belles SS on the stock Be10 and tubes on the modded crossover version. I recognized the "sound" of the stock speaker as similar to my own stock Be20. The modded speakers were much smoother and more transparent, less "there." $6k that's a tall price.

Does anyone know if the original 8871's have a chamber for leadshot?

Gpr does a xover and wiring upgrade for a very reasonable $500-650. Depending on options. 

There’s 2 pairs for sale right now and they have to be one of the easiest hi end speakers to drive I ever owned. If I had the room they would have been my last pair.