Connector system between 12 GAUGE speaker wires


Aloha again!
After the highly appreciated top suggestions here:

https://forum.audiogon.com/discussions/scratchy-sound-from-tweeter
I am now stuck with: 

how to put a connector system between the last 3 foot of 12 GAUGE speaker wires that run inside the speaker stands to 8 GAUGE wire to connect to amp.
I find plenty of banana connectors but NO female ones. I do not like to use flimsy RCA connectors.
What can I use to quickly connect and de-connect my speaker stands (on rolls to move aside if in the way)

I wonder if there is any solid system out there?
Can I pair banana connectors with kind of binding posts?
Any suggeestions?

MahaloPuu
puu
The customary solution with plain old wire like that is to strip about a half an inch and twist the ends together.
Just get two double banana plugs per speaker. One connected to the speaker leads. The other to the longer length from your amp. Push them together to connect the two different lengths. Pull apart when you move each speaker. Easy!