Joshua Dumas Posted January 23, 2013 Report Share Posted January 23, 2013 first off id like to say that this is my first time ever dealing with car audio, and even wiring and installing electronics. I purchased 2 rockford fosgate p2d2 subwoofers and i put them into a box(not ported) that crutchfield suggested was the right box. they are 800 watts max output and 400 rms(each) when wired at 2 ohms. then crutchfield suggested that i purchase some rediculous $500 amp and i told them that i have a tight budget. So i looked around and decided to get a kenwood kac-9105 -d because it was only $150 used and the support guy said that it would work fine. we have it all installed with 6 gauge wiring, but a stock battery,stock alternator, and no big three upgrade. its not the power draw that im concerned about though. The amp clearly doesnt have enough power for the two subs and cuts out as soon as i turn it up. when i wired just one of the subs to it though it has enough power and rattles the entire car. so my question is what should i do? im really money limited, so should i sell both subs and the box and buy a single sub? should i get a better amp? would my car be able to support a 1600 watt amp? 2003 honda accord. im looking for any answers really, id appreciate past experiences or suggestions because i feel like i wasted my money. if you have any questions id be glad to answer them. thanks Link to comment Share on other sites More sharing options...
Jessica Posted January 23, 2013 Report Share Posted January 23, 2013 I had a 9105d, I had it wired to 1ohm for 6 months or so, As long as i didn't clip it would bang all day no problem. I think your gain is probably too high or you are using bass boost. Are you using bass boost? I also ran 4ga wire to mine not 6ga. You will have some members telling you to find someone with a dd-1 or o-scope to set your gains, so do that if you can. Make sure the amp has good airflow too. 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 January 23, 2013 Report Share Posted January 23, 2013 edit: double post. Slow site 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...
Noel989 Posted January 23, 2013 Report Share Posted January 23, 2013 Wire your subs to 2 ohms set your gain and filter properly How do you currently have your subs wire? Build Log - http://www.stevemead...-cruiser-el-pt/ Link to comment Share on other sites More sharing options...
Noel989 Posted January 23, 2013 Report Share Posted January 23, 2013 Wire your subs to 2 ohms set your gain and filter properly How do you currently have your subs wire? Build Log - http://www.stevemead...-cruiser-el-pt/ Link to comment Share on other sites More sharing options...
Joshua Dumas Posted January 23, 2013 Author Report Share Posted January 23, 2013 i have them wired to 2 ohms. and there isnt a gain nob. not sure what the filter is? there was a nob that makes it so the sub doesnt go below a certain frequencie. is that it? i have the bass boost turned up on my radio but not on the amp. i may change the wiring, 6 was all we had at the time there is plenty of airflow. i put the rear seat down and usually have a window open. i dont get that cold haha. and ya i accidently double posted this topic because the website was really slow. its fine. and please excuse my typing and spelling. Link to comment Share on other sites More sharing options...
Noel989 Posted January 23, 2013 Report Share Posted January 23, 2013 Like this Build Log - http://www.stevemead...-cruiser-el-pt/ Link to comment Share on other sites More sharing options...
Jessica Posted January 23, 2013 Report Share Posted January 23, 2013 The "Gain" knob is labeled "input sensitivity" Set the LPF to about 80hz , at least under 100hz so you keep the vocals out of your subs. make sure the bass boost is off. I can post a pic if you want of the "gain" control. 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...
Joshua Dumas Posted January 23, 2013 Author Report Share Posted January 23, 2013 thats exactly how i have it wired, the subs had a manual that showed all the different ways to wire them. Link to comment Share on other sites More sharing options...
Noel989 Posted January 23, 2013 Report Share Posted January 23, 2013 Your gain is the input sensitivity Build Log - http://www.stevemead...-cruiser-el-pt/ Link to comment Share on other sites More sharing options...
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