RMS: @ 4Ω Stereo: 2 x 250W RMS: @ 2Ω Stereo: 2 x 350W RMS: @ 4Ω Mono: 1 x 700W Maximum Power: 1400W Frequency Response: 20Hz - 20kHz Class AB Power Amplifiers Onboard Active Crossovers High Level Input with Auto Turn on Function Variable Bass Boost Circuit Anodised Extruded Aluminium Heatsink