I have used uncrimped kimber spades (meant for 8tc) in the past. The bananas fit quite well into the wire end of the spade.
Bannana to spade adapters
I need to hook up bannana terminated speaker cables to a Classe 301 that only accepts spades. Does anyone know of a high quality bannana to spade adapter? (Ironically, I have spade to bannana adapters, but they won't work -- has to be bannana (on the speaker wire termination) to spade at the amp terminal.