2 pieces of 4" Platinum-plated round speaker box terminal cup
4" Universal Binding Post Sub-woofer Box Terminal
Gold-Plated contacts for optimal signal transfer
Spring loaded push style posts for a tight secure connection
Quick connect & disconnect
Durable ABS plastic
Positive (Red) and negative (Black) indicators to ensure proper wiring
Easy to install and use
Rear connections use quick disconnect connectors
Top Mount Depth: 1 1/8″
Cutout Diameter: 3″
Overall Diameter: 4″