Specifications - Ideal for computers, DVD players, TVs and microphones Suitable for wall mounting Two speaker screw terminals handle wire sizes from 12 to 24 gauge Speaker protection circuit Supplied with 12V DC, 2A AC adaptor Inputs: Dynamic microphone or stereo audio line level Microphone Pre-Amp Gain: 40dB Power Amplifier Type: Class-D Output Power: 15W (rms) per channel (@ RL=4O) THD+N: 0.06% (@ RL = 8O, F = 1kHz)