Apollo Monoblock Marine Amplifier Speaker Connector. Use this to connect your Apollo Monoblock Marine Amplifier to a compatible Fusion marine subwoofer. In the box: One (1) Speaker Connector and instruction sheet. Sold individually. Material: Plastic. Color: Multicolor. Size: One Size. Package dimensions: 2 x 1 x 1 inches; Package weight: 0.2 Pounds. Great Product. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.