Yeeco 50W+50W Digital High Power Amplifier Board Audio Stereo Amplifier Amplify Module DC 9-25V Dual Channel Stereo AMP Amplifier for DIY Speakers Car Vehicle Auto Computer Audio System<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Operating voltage range: DC 9-25V(maximum voltage is no more than 25V); logical and delicate circuit layout ; comfortable silver knob for volumn adjusting</li><li>Dual output channel， the maximum output power can reach 50W+50W and the efficiency is up to 90%; this digital audio amplifier board applies to laptop power supply; battery and vehicle battery</li><li>Comprehensive protection: Reverse connection protection/ Speaker output short circuit protection/ Power anti-shock protection/ no "POP" sonic boom when turn on/turn off</li><li>Dimention: 84mm(Length)x 51mm(Width)x 29mm(Height)-not include the potentiometer; perfect size of the amplifier board which will not take you too much room and it is easy to install</li><li>With 3.5mm audio input jack and 3P audio input port; please increase the heat sink when meeting with high-voltage power supply， cooling at high power output state</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51CTD6d5fKL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51CmOX4P8lL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51C3%2B7qdusL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51wL9kpmYmL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41BU4ByCacL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51z5d-TYZiL.jpg" noproxy>