Using this TOA A - 903MK2 amplifier is easy. First, connect it to a correct power supply to power it up. Then, connect your audio sources to the 8 channels. You can mix different audio signals as you like. When using, make sure the power supply voltage matches the amplifier's requirements. Keep it in a dry and cool place to avoid overheating. For maintenance, clean the exterior regularly with a soft cloth. If there are any issues, don't try to repair it yourself but contact the professional service.
