I used to agree with the preference for spades, but the new BFA bananas (suggested by reubent and others above) offer better and more contact with the binding post than spades. I’m incredibly happy with the audioquest SureGrip100 BFA/Banana (Silver). They are crimp on connectors and form an excellent bond with the cables, much better than set screws. So between the stronger, larger contact with the binding post and the solid crimp connection with the cables, these connectors (or any other connector of this design) offer an extremely solid connection between the amp and speakers. They are also inexpensive, which is a big plus. Regarding auxinput's worry about getting 10 awg cables into the connectors, I wouldn't worry. My cables are 9 awg and I was JUST able to get every strand into the connector, though, being made from cat 5 cable, the conductor strands are rather stiff.