The VSUB-1 Virtual Copper™️ Digital Wireless Subwoofer Audio System simplifies wiring your home theater system by allowing you to connect up to four subwoofers to your processor or AVR without the need for messy subwoofer interconnect cables. To use the VSUB-1 system, simply connect a VSUB-1T transmitter module to the sub output on your processor or AVR, and connect VSUB-1R receiver modules to each subwoofer you want to connect to it.