15mm Spades into a Krell Showcase?

Will they fit into the plastic casing around the binding posts? I have the opportunity to try a pair of cables I am looking for, but the spades are quite large. The Krell is about the toughest set of posts I have ever seen to access.

Answer is they don't! I have only got on lug into the access area for each cable and kinda clamped it there - not the best connection, but it still works and still sounds a ton better than the cable before it.

They don't fit too well intop the back of a Wilson Sophia either!