problem with dd1

[bbeljefe]

If you have another set of RCA cables laying around, run them from the sub out on your head unit to the subwoofer amp and try setting the gain again. You don't have to install them, just lay them over the seats...

I don't know exactly what the problem is but you should absolutely get a distorted signal going to the amp at some point. With a 4 volt output you should see distortion with the gain somewhere around the 10 o' clock position.

That's the position for pretty much every Alpine 4v head unit I've installed, from the older ones to the new ones and from double din to singles.

And with all that said, I'm gonna make sure I test a 149bt today because now you have my curiosity piqued.

[pioneerforlife]

This thread....is almost as long as my build log lol.

[tju76]

I will test a new pair of rca cables

[tju76]

Let me ask. Did you hook the Positive probe on speaker + and ground clip on the battery negative. Right?

It says to use the negative speaker terminal. The only way I can put it in the amps negative is by taking out the amp ground is this what you mean for me to do ?

[Jessica]

No, just use a nearby ground if you need to. Improvise

[Jessica]

Also it says use aMP ground for mono amps. Read the instructions again. No wonder you aren't seeing a distortion light

Edited August 1, 2014 by strangeduck

[tju76]

My dd1 did not come with a clamp just the probes

[byers319]

Then poke it into the wire

[tju76]

My dd1 did not come with a clamp just the probes I loosened the ground and put the probe in but the dd1 did not show a signal

[tju76]

For setting the gain of a subwoofer amplifier it reads connect red probe to speaker positive connect the black to speaker negative I tried putting the probe in my amp negative and the dd1 would not get a signal so I would say it's supposed to go in the negative speaker