The distortion light would never come on fully to show distortion, just randomly flash when turning the gain and never at the same point. I could turn the gain all the way up with out the light fully coming on to show distortion
same thing happened to me but might just not be enough voltage going to the amp. Also, as Steve said the light will come on and off while turning up the gain and NOT at the same point as YOU stated. Says that right in the manual. maybe i missed it but what equipment are you using? Line driver needed perhaps? You got the manual for the DD-1 correct? Crescendo 2k and Rockford prime 4 channel. Kenwood HU