Banana Plug - Pure-Copper 24k Gold Plated by A.L.A Audio
Sold as pack of 4 (two red & two black)
DIY friendly. Cold-Weld connection with two sturdy screws.
One-piece solid 99.99% Pure Purple Copper. Instead of inferior sounding multiple pieces or brass.
80 micron 24k Gold (directly-plated) without normal sound-damaging intermediary layer