Not sure on any numbers, not running it in house any more and haven't had it in the car long enough, nor enough time to care currently, but I have noticed that at very low levels it did funny stuff. I can't tell you what exactly it did, but it was different. An engineer (amps I do believe) at QSC that I have had dealings with said that the DCX does do funny stuff at low signal levels and starts messing with curves and what not. I would love to find that PM from him, but SiN is down for good and that info is lost.