Soundmax SX-600.1D 4000W Oto AmfiSX-600.1DSoundmaxDIGITAL MONO AMPLIFIERSpecification And Features• 250Watts  4 ohms RMS• 400Watts  2 ohms RMS• 600Watts  1 ohms RMS• LPF Filter: 30Hz-300Hz• SubSonic: 10-55Hz• Low level input range: 0.2-6V• Bass Boost: 0-9-18dB• 6 meter wired bass control