Canare 4S11 Speaker Cable, with Ultrasonically-Welded Bi-Wire Terminations (One Cable - for one Speaker); Assembled in The USA (50 Foot, Black, Two Spades to Four Spades)

Bi-wired setup: two connectors at the amplifier end, four at the speaker end. Incorporating premium terminations: a special ultrasonic welding process bonds the copper wire directly to the brass banana or spade connector, removing any intermediate metal, compression sleeves, or setscrews. Star quad cable arrangement decreases the electromagnetic field surrounding the cable, reducing interaction with other system wiring. Manufactured in Seattle, Washington, with proprietary connectors and a Sonobond welder. The welded spade connectors (with a 9.2mm opening, fitting almost all binding posts) are crafted from solid sheet copper, gold-plated for corrosion-free contact