Spades Verses Bananas?

“bare” wire, crimped with high quality ferrules is the best option!

nice high quality, tellurium banana termination is practical, consistent results!

don’t forget about speaker/amp jack connectors, those sometimes are the worst / bottleneck in amp-spkr interconnects. 

some early days spades by Kimber-Kable are relatively stable, but still worse than banana plugs on the long run. 

Of course he ultimate connection is to solder the cable ends directly onto the binding posts, preferably the low-mass Cardas CPBP Single Knob Binding Post mentioned above by @corelli.

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Banana with self locking. I do like cardas connectors and copper binding posts. Amazon does  have some self locking bananas and you can stack them piggyback for multiple wire. They are screw contact for wire and some fit my 4 gauge wire. I have had spades come lose and be too small of opening and have to spread them open with needle nose to fit some amps. Good luck experimenting.enjoy the music.

locking/stacking/angled banana’s from Parts Express

https://www.parts-express.com/Stacking-Banana-Plug-with-Dual-Set-Screws-Poly-Carbonate-Sh-091-3608?quantity=1

Great stuff and good conversation.  I do not notice a difference in sound quality, but I love my cables that offer both options depending on the speakers.  Focal's and B/W's seem to like spades, JBL's work better with bananas