I use it with my C1 and M1 and those are the best EQ I have had. I had Yamaha GE-60 and when I purchased the GE-1100 I could feel the difference right away and when the volume was down the bzzz sound disappeared. Many options on it and I love the echo you can make. Very nice display and blue display when the echo is on. It is bad that Kenwood doesn't make home stereo stuff. I give the GE-1100 5+.