bbeljefe Posted August 1, 2014 Report Share Posted August 1, 2014 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. Quote Facebook: facebook.com/audioanarchyllc Instagram: audioanarchyllc Youtube: youtube.com/bbeljefe Link to comment Share on other sites More sharing options...
pioneerforlife Posted August 1, 2014 Report Share Posted August 1, 2014 This thread....is almost as long as my build log lol. 1 Quote 2007 Ford Focus SES Hatchback Pioneer HU 4 Digital Designs 9515i's in a B pillar. 2 Soundstream XXX 15K's (running at 16 volts) Soundstream Mids/Highs in custom door panels (getting rebuilt soon) Soundstream TA2.160 and TA2.400 Sky High and KNU wiring 3 Banks of Maxwell caps Winston Lithium (not a fan) Bump4Life 250 Amp Alt. aka USAlternators Soundstream Focus and Avenger Build Log Instagram @p4linnovation YouTube: Team Blowin Loud Link to comment Share on other sites More sharing options...
tju76 Posted August 1, 2014 Author Report Share Posted August 1, 2014 I will test a new pair of rca cables Quote Link to comment Share on other sites More sharing options...
tju76 Posted August 1, 2014 Author Report Share Posted August 1, 2014 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 ? Quote Link to comment Share on other sites More sharing options...
Jessica Posted August 1, 2014 Report Share Posted August 1, 2014 No, just use a nearby ground if you need to. Improvise Quote Rest in peace, walled 87 accord build log 03' Corolla build with AA Mayhem inside. My super random youtube channel and terrible camera work. Wiring comparison by CaptainzPlanetz Wire and fuse guide by Guest SyKo13 Link to comment Share on other sites More sharing options...
Jessica Posted August 1, 2014 Report Share Posted August 1, 2014 (edited) 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 Quote Rest in peace, walled 87 accord build log 03' Corolla build with AA Mayhem inside. My super random youtube channel and terrible camera work. Wiring comparison by CaptainzPlanetz Wire and fuse guide by Guest SyKo13 Link to comment Share on other sites More sharing options...
tju76 Posted August 1, 2014 Author Report Share Posted August 1, 2014 My dd1 did not come with a clamp just the probes Quote Link to comment Share on other sites More sharing options...
byers319 Posted August 1, 2014 Report Share Posted August 1, 2014 Then poke it into the wire Quote Link to comment Share on other sites More sharing options...
tju76 Posted August 1, 2014 Author Report Share Posted August 1, 2014 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 Quote Link to comment Share on other sites More sharing options...
tju76 Posted August 1, 2014 Author Report Share Posted August 1, 2014 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 Quote Link to comment Share on other sites More sharing options...
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