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Message Forums Car Stereo Message Forums > Subwoofers and Speakers > Noob question...correct settings for subs?
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ThumpinCutlass
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 Noob question...correct settings for subs?

Hey im Doug and i just a have a noob question. I just want to know the correct settings for my sound system. right now the subs go Thump buzzz buzz thump. i just want the thumping not the odd buzz afterward. My system includes an Alpine CDE-9870 deck with an 800wat amp and 2 12" subs i think sony. this is the system i received with the car when i purchased it. just dont like the current settings and need help. it has a HPF setting etc and i think an LPF on the amp. I know its not the best so i dont want all those dumb comments on how i should just buy kickers and stuff. im just a high school kid that just whats better sound. Thanks

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New Post 11-22-2011 12:54 PM
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riva16
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Buzz dont sound good. Start by ensuring the sub is sealed. Ported or non ported box, you need to make sure air isn't leaking from any spots other then port. Amp should be in LPF, obviously for low pass, and if theres a variable knob to adjust the freq., you might want to set it around 100hz. If theres a subsonic filter, you want it around 30hz probably, and if theres a bass boost switch or variable adjust knob, I'd leave it off. If its a knob, a little 1/4 turn shouldn't hurt, but bass boost on a sub amp is something you SHOULDNT have to use... I'd set Gain to about 1/8 a turn, & turn your deck up until your speakers crackle, and back it down a tap or two, then adjust the GAIN until the bass sounds washy, then back it up where it sounds clean. That would be a generic set GAIN, and see how she sounds. Biggest issue with ppl who get systems but dont know alot about it, is they think the GAIN control is a volume knob, and that you just turn it up all the way, or almost all the way. Not good. lol Another issue with buzz might be alternator whine int he signal, which could be from running a power wire along side the RCAs, or just cheap RCA / power cable to begin with. In my experience, a ground loop noise filter will help, but whine can still be present. Hope I helped!

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New Post 11-29-2011 11:54 AM
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gameguru1360
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I would say it's probably air leaking from the terminal cup. I've had to replace the crappy screws that came with mine with thicker wood screws and that solved my buzzing or weird bass frequencies because air was leaking from the sides as well. I sealed that plastic part of the terminal cup inside with silicone

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New Post 12-19-2011 08:17 PM
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