JBL CSMA 2120 8-Channel 80W Commercial Mixer-Amplifier More operating efficiency and reliability by using fewer parts. - Significantly reduced power consumption. Iluminated rings make them easy to see and operate. - Iluminated rings make them easy to see and operate. A proprietary hybrid analog-digital integrated circuit. - A proprietary hybrid analog-digital integrated circuit. Priority muting. - Phantom power. - Phantom power. - Universal power supply. Fanless, space-saving 1U design. - Euro-block type mic/line input connectors and output connectors.