this self-made 2*50W digital control audio amplifier. This product is well-known for its small size, portable, elegant and its outer casing fully made from aluminum alloy which makes it tough and durable. As an ideal Class-D audio power amplifier and integrated with TDA7492 which is currently popular around the world, it not only provides dream sound but also has high efficiency, thus it can dissipate the heat after long-time working to ensure that the amplifier can works in a stable condition for long time.Besides traditional RCA input jacks, a stereo phone jack is provided to make it much easier to be used with your second device such as mobile phone or portable players. A high quality headphone amplifier is also provided at the front panel.