Features:    

Note :  it is DIY KIT , Need to own welding 

Output power: 300W + 300W (total 600W)

Power input: AC double 20-60V, speaker AC independent AC 11V to 18V can be

Frequency response: 20Hz-100KHz

Dimensions: 227X111mm

Harmonic distortion: <0.005 10W / 8Ω

Matching speakers: 4-8Ω 50-600W 5-15-inch KTV speakers, floor speakers, stage speakers

Package Contents : 

1 x DIY kit HIFI Fully Symmetrical Dual Parallel Discrete Power Amplifier Board 600w