Ravi,
Here's what I found from my Crutchfield catalog (p114 of Winter/Spring catalog):
"Connector type ... Spring clips accept bare wire and pin connectors. Binding posts add spade-connector and banana-plug capability. 5-way binding posts go one step further and also accept double-banana plugs."
Looks like 5-way means that all five connection types can be hooked up.
My Onkyo-600 receiver has "banana plug-compatible speaker posts" which is like a "3-way binding post" in that it can take bare wire, pins, and banana plugs. Won't take spades, or doesn't look like it will.
Hope this clears it up!
Rob
