So an update after working with the DD1+ yesterday. Followed instructions and determined I have a clean signal from factory head unit at 60. With 40Hz 0db track, went to setup midbass and picked up distortion light at +7db on input slider. Hit the read button, distortion light went out and display showed +15.5 db. Switched to 40Hz overlap track and display stayed the same at +15.5db. Did not drop back like I have seen it do on so many of the DD1+ videos. Same results with the mids at 1kHz. Is there something about the AC D-6.1200 that is causing this?