SMAKN&reg; TDA7492 High Power Digital Amplifier Board 50W * 2/100W can Parallel Bridge Type : Professional Amplifier Channels : 2 (2.0) Chip : TDA7Power : Digital Amplifier Board 50W * 2/100W492 The use of high-speed SMT placement machine, over temperature reflow, the performance is very stable, non-manual welding process can be compared with the four groups gain adjustment.