Thanks lovinthehd for the reply. Ya so the swells are just like the fospower, probably made by the same company. I am probably just being more anal about knowing that its really copper under the gold plating. But i just like to know. So the swell, the ends are the same as the fospower brand and when i unplugged one the 4 springs im gonna call them that give tension came out. They’re just pressed in. I was disapoiting in that and wanted a solid through banana plug that i know wasn’t just pressed in the end. Sure i know they’re cheap but goodness lol. Only one though. So i went back to the drawing table and found the viborg ones. They have just a single spring and is solid through. Kinda like the locking ones. I know i would never hear the difference but really was trying to keep OFC speaker wire terminating to copper banana plug. Granted gold plated. But having a electronics background its just common to keep things from being changed or different material. Probably being over critical. Thanks for calming my nerves. Lol. Anyone else ever use ring terminals for the female banana plug jacks on speakers? They are tinned and i solder the wire to them. Dress up with a little heat shrink and the may reason i like them is my jbl s26’s, s38 are front ported. I have them mounted to wall and not using banana plugs i can put them right to the wall. Which doesn’t seem to effect the speakers. Thanks again for info.