clipping

My thoughts are that you are not describing the problem nearly well enough.

Rotel receiver may be too weak and B’s are definitely too heavy.

Remember amp must be heavier than speakers -- use scales to measure 😁

yes, just thought  a preliminary would start.  my new equipment is parasound a21 and adcom 915 preamp, what a difference but still clipping at 80 decibels

The A21 should handle 80db easily with those speakers. Can you describe what you mean by clipping? It might also be helpful to know something about your source components.