AudioQuest SureGrip 300 Spade Set of 4 Gold Multi-Size

Compatible with speaker cables up to 9 AWG. Compatible with 1/4-5/16 inch binding posts. Ideal connection with cold pressure welding system provides better sound than soldering. Tighten the Allen bolt (hexagon socket head bolt) with the included tool to create an ideal connection between the plug and the conductor. Next, slide the magnetic interference-free ABS case over the banana plug. The overhangs are pure gold plated directly onto the purple copper, and there are no interlayers of nickel that can damage the sound. High purity purple copper creates a cleaner, clearer sound compared to copper or brass used in other premium connectors. AudioQuest SureGrip 300, Multi-Sized Spades, Set of 4, Gold. High purity purple copper creates a cleaner, clearer sound compared to copper or brass used in other premium connectors. The overhangs are pure gold plated directly onto the purple copper, and there are no interlayers of nickel that can damage the sound. Ideal connection with cold pressure welding system provides better sound than soldering. Tighten the Allen bolt (hexagon socket head bolt) with the included tool to create an ideal connection between the plug and the conductor. Next, slide the magnetic interference-free ABS case over the banana plug. Compatible with speaker cables up to 9 AWG. Compatible with 1/4-5/16 inch binding posts.