MuxLab 500033 Quad Audio Balun Transmits up to 4 Analog Audio Signals, Transmission up to 3250' via Cat5E/6 UTP, Eliminates up to 4 Coax Audio Cables, Bandwidth - 20 Hz to 20 KHz, Fire Retardant Plastic Enclosure, Compact Design - 2.40 x 2.25 x 1.00"...