Congratulations on your choice of stereo power amplifiers you have purchased one of the finest stereo amplifiers on the market today.This unit was developed using the expertise of professional sound engineers and working musicians. You will find that your new NADY AUDIO XA-1100 has superior performance and greater flexibility than any other amplifiers in its price range. Offering top power, superior performance and full professional operating features in a roadworthy compact chassis, the XA Series are perfect for even the most demanding sound reinforcement installation and touring applications.