I purchased one of the 1220 Hsu Research amps as part of my Home theater setup. It is matched with sunfire amps and M&K s150 and ss150 speakers. I am extremely pleased with the response that I get. My system is used about 95% for movies but the little music that I do play through it also sounds very nice. This even though the M&K's are not the best musical speakers that you can get. I also went up and met Dr. Hsu at his office and had a chance to speak with him and some of the members of his staff and found them all very friendly and helpful. I have no regrets with my purchase but am thinking of adding another even though this one will shake all of my pictures from the wall when turned up.
