What's the biggest spade you can buy?

I'm sure other MF owners will have some advice, in the meantime, wow, those are huge terminals. The largest spades I'm aware off is Monster's 10mm, but they only work with Monster's locking pin system.

Besides other MF owners, I'd try talking to a MF dealer or the company itself for advice.

just a bit off the topic, but bare wire is the best!

I used to have this unit and the banana connection fit very tight & sounded great. That is the best route for this unit.

Alpha Core solid silver spades may work.

Forget it. I have a Nu-Vista as well and there is no spade that will fit those binding posts. The largest spade I know of is Analysis Plus and even those did not fit. I just use spade to banana adapters.