Specifications : Channel 12 Circuit Class D Digital RMS Power 8x80w/4x250w Frequency Range 5Hz - 200KHz Damping Factor gt;100 Signal- to-Noise Ratio gt;90 dB Chanell Separation gt;60dB THD amp;N 0.05% Input Impedance gt;47 kOhms DSP Processor : Cirrus Logic Single Core 32 bit