Binding Post?

Okay, funny story with this subject.  It's all true though.   Years ago, my wife, now ex, had three cats.  They would run around behind my speakers and disconnect the banana plugs.  I had satellites and two subwoofers on each side, so there were a lot of banana jacks and plugs.  I got tired of missing some of my music every time I turned it on, so I ended up getting locking banana plugs.  Pricey at 30$ a pop in 1985 money but it cured the problem of cats yanking the jacks out.  So, in a roundabout, kinda sorta way, expensive banana jacks made all the difference in my system. 

I used them up until a month ago when I switched the subwoofers and sub amplifiers over to 5/16's crimped and soldered terminal lugs and #12 AWG dual quad speaker cables. 

I have done comparisons of various type of binding posts. The result made me a believer of low mass connection. I am with Carlsbad. Use BFA bananas or, KLEI. A big block of metal in signal chain is counter productive to improve the sound quality of your system.

@jasonbourne52 Your extreme ASR opinions are well known but honestly you aren't answering anything that the OP asked and are not contributing to his question! He never asked for opinions on if binding posts matter!

The Cardas Audio CPBP Single Knob binding post is a relatively low mass design, and uses pure copper for the connection.

Then there is the Electra Cable Tube Connectors, offered by GR Research. Very low mass, pure copper, but it must be used with the Electra Cable Tube Connector on the speaker cable ends, not normal speaker cable terminations like spades and bananas.