alaskanzx5 Posted July 15, 2013 Report Share Posted July 15, 2013 1) clipping can be cause by bass boost from head unit or amp, could be from the head unit not playing clean all the way to full volume, could be from the gain being to high, but here is the kicker, dirty music. dirty music can be cd's bought from a store downloaded from the interwebs or however you got it it can be dirty. 2) big 3 consist of adding a larger wire to the alternator + to the battery +, battery ground to frame/chassis, engine ground to frame/chassis. instead of engine ground do a ground from an alt mounting bolt to the frame/chassis. its gives you a better return path then going through the engine to the alt. 3) thats the point of learning. everyone on this forum are here to share their knowledge and learn more. its what its here for and full of info. keep creeping through build logs and searching for info on here. t1500bdcp 2 t2d4 15" 1 t600.4 1 t400.2 1 set p1 tweets singer alt, tons of wiring, smd vm-1, 80prs, back seat delete, still in the works, aiming for a 145-147 with the ability to play 25hz up to 50hz. Link to comment Share on other sites More sharing options...
alaskanzx5 Posted July 15, 2013 Report Share Posted July 15, 2013 oh and even though you friend worked at an audio shop does not mean the gain is set right. nothing against your friend but i have set my gains with my ears for years now. first time getting them set right with a dd-1 and i was clipping a little before getting it set right. plain and simple your ears will not hear the small amount of clipping/distortion no matter the amount of years exp doing it that way. search the forum for the smd tool map, its a google map of everyone that owns a dd-1, oscope, termlab, and other tools that help with car audio. t1500bdcp 2 t2d4 15" 1 t600.4 1 t400.2 1 set p1 tweets singer alt, tons of wiring, smd vm-1, 80prs, back seat delete, still in the works, aiming for a 145-147 with the ability to play 25hz up to 50hz. Link to comment Share on other sites More sharing options...
Quiet Posted July 15, 2013 Report Share Posted July 15, 2013 I still bet money on the former hitting the motor. Have to hit the right frequency when out of the box. Having it in the box makes it worse but its still there... 2007 Pacifica Rebuild. Less quiet. Still not loud. Link to comment Share on other sites More sharing options...
2010gmc Posted July 15, 2013 Author Report Share Posted July 15, 2013 Ok I'm going to try them out of the enclosure today but if my amp is clipping then do I just turn the gain down? Link to comment Share on other sites More sharing options...
Jessica Posted July 15, 2013 Report Share Posted July 15, 2013 I can't find a picture of the back of that sub, does it have a vented pole piece? I mean does the magnet have a hole in the center of it? If it does that could be causing the rattle. You might have to just add a layer of fiberglass and mat to the inside of the box there. 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...
Quiet Posted July 15, 2013 Report Share Posted July 15, 2013 Here's a shot of the motor. There's no screen in the pole vent. 2007 Pacifica Rebuild. Less quiet. Still not loud. Link to comment Share on other sites More sharing options...
Jessica Posted July 15, 2013 Report Share Posted July 15, 2013 So it has a vented pole piece, if that vent is super close to the back of the box then the air coming out of it could make the box rattle, or cause air pressure to build up under the dust cap and cause rattle there too. How close it the magnet to the back of the box? 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...
2010gmc Posted July 15, 2013 Author Report Share Posted July 15, 2013 If you look down into my motor or whatever there is a metal screen in there Link to comment Share on other sites More sharing options...
Quiet Posted July 15, 2013 Report Share Posted July 15, 2013 Possible. Shouldn't be that much. I remember op said he tried one sub out of the box... Did he free air the other sub? The reason I say this is because this is a known issue with this line of subs, and I swore up and down it was the box. Wish I had shots of the former to show you what I mean. Also the rattle was noisier in the box than out of it... But you should hear almost nothing from a free aired sub. 2007 Pacifica Rebuild. Less quiet. Still not loud. Link to comment Share on other sites More sharing options...
Quiet Posted July 15, 2013 Report Share Posted July 15, 2013 If you look down into my motor or whatever there is a metal screen in therepic of your motor? Gray or black cone sub? 2007 Pacifica Rebuild. Less quiet. Still not loud. Link to comment Share on other sites More sharing options...
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