Work-pro ARC SUB 12 is a self-powered subwoofer with a 12" woofer and a 200W amplifier. It features several controls, allowing to configure parameters such as output gain, bass enhancer, crossover frequency or phase inverting. The built-in Standby function offers the possibility to shutdown the amplifier in absence of audio input. ARC SUB 12 incorporates 2 input types: full-range LINE mono input and stereo High Level input for direct connection between external amplifiers and satellites system.