TDA 2009 2X 11 Watt Amplifier

This is a stereo IC, so that you can make a stereo amp with a single IC. The amp is internally DC-biased and the amplification is also set internally. Don't even try to set a different amplification, it's no use. There are also schematics of bridged amps with this IC, but I think it's a fraud - the distortion grows one decimal order higher (general property of bridged configurations).