Those look like excellent banana plugs, but they are VERY expensive. Here are a few less expensive ones that will, in all probablility, perform just as well.

GLS banana plugs (either locking or regular) No soldering necessary.

Dayton banana plugs

However, if you like the Audioquest, and can afford them, by all means get them.

Jack

"People generally quarrel because they cannot argue." - G. K. Chesterton