This Crown Audio CH2 Stereo Bridge Amplifier is a powerful addition to any sound system. With 400 W of power, it can handle two channels with ease. The model is CH2 and it is a power amplifier with 2 channels. It is perfect for pro audio equipment and musical instruments & gear. The amplifier is from the Crown brand and has not been tested. It is sold as-is and turns on perfectly. If you're looking for a reliable and powerful amplifier, this Crown Audio CH2 Stereo Bridge Amplifier is a great choice.