BMB DX-388 G2 800 Watts Professional Mixing Amplifier Power Output (RMS): 800W (200W x 4 @8 ohm)/ 1200W (300W x 4 @4 ohm) Microphone Connector: 1/4 TRS/unbalanced Video Input/Output: 1Vp-p/75 ohm Noise Ratio: &gt;90dB Most powerful in its class