RDL FP-PA20 Mono Audio Amplifier - 20WThe FP PA20 features a balanced line level input that may be connected unbalanced. A front panel gain control is designed to be adjusted either manually or with a trimming screwdriver. The gain range will accommodate standard unbalanced levels as well as professional balanced levels. The output will drive an 8 speaker or multiple speakers connected to present an 8 load to the amplifier. Audio levels that could cause the amplified output to clip are