Thanks a lot kickass audio that's exactly what I was doing, but since it didn't explain it in the manual and since I'm a noob I didn't know if I was doing it right, also I didn't know what test track to use so I was using track 1 wich is 40Hz -0dB. And the reason that I don't want to mess with my stock h/u is because I got a 2007 honda accord withought the navigation and the a/c is conected to the h/u so it shows the temp and stuff on the h/u when you turn on your a/c. Also I never had a problem with hi/lo converters, I always set them by ear and my system sounded just fine but now I'm trying to do it the right way since I got the dd-1. So you say for the hi/lo converters to use a 1kHz test track, and would the -dB be my preferance depending on how loud I want it?