The plastic guards on the binding posts of my B-60 have slots for spades that point down, so there is almost no clearance between the slots and the shelf of my rack.
1. This arrangement seems so obviously stupid that I've sometimes wondered if I have a defectively assembled B-60. If I tried to use the speaker cables that Bryston made for me, with their big chunky 5/16" spades and 10 AWG wire, then the back of the amp would rest on the cable, unless I push it way back in the rack.
2. If it's not a defect, is there a way to rotate the plastic guards so they face up?
3. If 2 is not possible, then I suppose adding taller feet might be an option, though they'd have to be a couple inches taller for useful clearance. Any suggestions?