Leaderboard

You'll know if the preamp is weak because the signal light either won't come on, or will flicker. You can sanity check this by setting it through your amp - turn the gain low and see if the head unit distorts. IIRC, some stock radios use a hard limiter of some variety so they won't distort. They just cap gain at a given threshold

For sure! Had the + been available when I picked up my DD-1 I would have gone that route 😎

I mean I don't tune other people's either I have the biggest system out of everybody I know but what if I run in to someone that I do need it and plus it does the same as the original so it's ok it was only a little more money plus it's gotta be better than setting everything with a dmm

They are both great tools. I have the original DD-1, have been thinking about getting the +, but I've never had to tune a system that required the extra wattage capability that the + offers. The thing that's going to drive you insane is how sensitive the crossover pots are on some amplifiers. I've started tuning amp crossovers on the bench before installing them so I can fiddle with the settings until they are finally dialed in LoL

I just bought the dd-1+ and cc-1 waiting for it to come hopefully I can figure this out too

It is possible that your head unit doesn't distort. Just some things to check. It's the eq set to flat on the head unit? Does the 40 hz detection light come on in the unit? Have you tried 40 hz and 1000 hz? Does the unit have a fresh, name brand, strong battery? What LOC are you using? (Im guessing it's the clarion?) Does the LOC have a gain? Is that gain in the LOC set correctly? Does the LOC have the function where it corrects the output signal of the stock head unit so it is, and remains, a flat signal? (A lot of vehicles nowadays manipulate the head unit signal so the crappy, paper, stock speakers sound ok, but are protected from lower signals. As you turn up the volume, it'll actually cut the lower frequencies more to protect the stock speakers)

I didn't revive this shit either dipshit