I have a problem with my DD-1 and CC-1, I bought my DD-1 and CC-1 back in 2013.
When I tried to find the max distortion on my friends headunit using my DD-1 I got the subwoofer amp measured. But when I tried to do his 4 channel amp, a Kenwood Excelon X600F my DD-1 could not measure the distortion from the headunit though this amp. For one thing I noticed that even when I tuned my amps way before my friends, my DD-1''s signal light would flicker, never stay solid. Same thing happened with my friends amps. I didn't think anything of it until tried set the gain for my friends sub amp, an Alpine 500MRV, that showed no distortion at of the gain positions. Just to clarify I put the correct track in on the CD. For his sub amp I tried all three settings on the track just to make sure that I was not going crazy, 3,5,7. None of these made distortion light go off. But when I set the gains on my friends 4 channel, I could set the gain correctly.
To see if I did anything wrong I retuned my system after I got the weird results of my friends amps. I noticed the same thing, the signal light was always just blinking never solid, I could get it to stay solid red but if I turned it down one notch then the light went green but with the blinking.
The same thing sorta happened on my CC-1, I cant set the crossover because it never goes blue. When I set my system back in 2013 my DD-1 and CC-1 worked perfectly. Now, I have just moved from TN back to CT, I should mention that in that time frame of 2014-2019 I did not use my DD-1 or CC-1 at all, it was just sitting in my bedroom. I have changed the batteries several times on both my devices and I have also at least for the CC-1 have held the "off" button for 2 seconds to clear it but nothing has seemed to have helped. For my CC-1 when I was trying to tune the systems I was working on my CC-1 signal light was slowly blinking. I tried to turn it off, and hold for 2 seconds, that didn't work. I then just took the battery out to see if that would fix it, that didn't work.
For the subwoofer amp, both in my system and my friends system I used track 7. For both my 4 channel and my friends I used track 4.
I emailed WCCAUDIO but I never got any reply so now I am trying here.