Sub box of fire
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New member Username: MrmexicanshoesPlano, Tx Usa Post Number: 4 Registered: Apr-07 | thanks for helping me out with my amp problem, but now it seems as if i just ran myself into anoher problem.... now when i hit it hard, i get the very noticable melted plastic smell coming from my woofers...any suggestions. |
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Silver Member Username: ShadeMoxee, Wa U.S. Post Number: 219 Registered: Nov-06 | turn the gains down on ur amp |
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New member Username: MrmexicanshoesPlano, Tx Usa Post Number: 5 Registered: Apr-07 | i tried that...but then i dont get any bass after that... |
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Silver Member Username: OlegSanta Monica, CA USA Post Number: 986 Registered: Nov-04 | You can't have both if you don't have the power. Turning the gains up clips the signal and then melts your coils...eventually you'll be subless (maybe ampless too). So either you get some more bass and melt your subs or have little bass now, get a bigger amp, and have more bass later. |
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Gold Member Username: Nd4spd18Southeast PA Post Number: 1806 Registered: Jul-06 | Gain is NOT a volume control Set it properly and you won't have any problems: http://www.subwoofertools.com/forum/setgain.asp |
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New member Username: MrmexicanshoesPlano, Tx Usa Post Number: 6 Registered: Apr-07 | ok, i see what you mean, but if i have my speakers set up like this... http://www.cardomain.com/shop/wooferwizard.pl?num_of_subs=2&impedance_of_subs=2o hm_dvc&x=130&y=11 what number of (ohms) would that be? |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1030 Registered: Nov-04 | The diagram on that page doesn't load. BTW if your ground's not connected or has a bad connection, it'll burn. What gauge wire are you using? That can burn too. Brand of subs and amp? |
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Gold Member Username: Nd4spd18Southeast PA Post Number: 1863 Registered: Jul-06 | It's most likely the voice coils burning due to clipping. He said it was coming from the subs. |
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New member Username: MrmexicanshoesPlano, Tx Usa Post Number: 7 Registered: Apr-07 | they are coming from the subs...the gauge is not a problem, i had everything checked out before i bought my subs "4 gauge" i just blew out one...i believe i was pushing the subs without enough power...any suggestions? Ive been trying to get this system to work...so far ive bought two amps, this is my second set of subs...and now i am going to replace one... here are the specs on what i got... ALPINE MRD 1005 - 1000 watt mono sub amp (2) 12" kicker Comp-VR 800watt max (400watts rms) ive got a copasitor hooked up, and 4 gauge wire.... my truck is a 2005 dodge ram 1500 Quad Cab...any help would be the best right now!!! |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1096 Registered: Nov-04 | Are the subs dual 4ohm or dual 2? |
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New member Username: MrmexicanshoesPlano, Tx Usa Post Number: 8 Registered: Apr-07 | IT HAS 4 PLUGS 2RED 2BLACK...DUAL 4OHM? |
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New member Username: MrmexicanshoesPlano, Tx Usa Post Number: 9 Registered: Apr-07 | IT HAS 2RED 2BLACK |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1099 Registered: Nov-04 | Nope, doesn't tell me anything. Do you still the box or the order form for the subs? It should say there. If you can't tell, give me the complete model number and I'll tell you. |
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New member Username: MrmexicanshoesPlano, Tx Usa Post Number: 10 Registered: Apr-07 | 4 DVC |
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Bronze Member Username: MrmexicanshoesPlano, Tx Usa Post Number: 11 Registered: Apr-07 | here is a pic http://akamaipix.crutchfield.com/products/2005/206/h2065c12vr4-f.jpeg |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1101 Registered: Nov-04 | Now, this may potentially be the problem. How EXACTLY are your subs wired? Parallel/parallel, or series/parallel? |
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Bronze Member Username: MrmexicanshoesPlano, Tx Usa Post Number: 12 Registered: Apr-07 | this way as i was recomended in a previous post http://www.cardomain.com/shop/wooferwizard.pl?num_of_subs=2&impedance_of_subs=2o hm_dvc&x=130&y=11 |
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Bronze Member Username: MrmexicanshoesPlano, Tx Usa Post Number: 14 Registered: Apr-07 | under option 2, option 1 turns off my amp into CUR mode |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1103 Registered: Nov-04 | Well, dude...the diagram is for dual 2 ohm voice coil subs! Can you check that and repost? |
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Bronze Member Username: MrmexicanshoesPlano, Tx Usa Post Number: 15 Registered: Apr-07 | it is a 4ohm sub... and i have it set up like option 2, option one my amp turned off... http://www.cardomain.com/shop/wooferwizard.pl?num_of_subs=2&impedance_of_subs=4o hm_dvc&x=150&y=14 im guessing i dont have enough amp pushing them both? and another question...would that amp be too much to just push one? |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1110 Registered: Nov-04 | The amp spec says it puts out 700W rms @ 4ohms, that's 350W to each woofer, which is just fine. I'm not sure what it could be  M.S., got any insight on it? If everything's as he says it is, then he shouldn't be frying the woofers. |
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Gold Member Username: Nd4spd18Southeast PA Post Number: 1964 Registered: Jul-06 | Did he ever set his gain properly? If not, that's the problem. Do this: http://www.subwoofertools.com/forum/setgain.asp |
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Bronze Member Username: MrmexicanshoesPlano, Tx Usa Post Number: 16 Registered: Apr-07 | i have the gain at .5 if i go higher the bass fades... would it be too much to try and push one woofer witht this amp? |
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Gold Member Username: Nd4spd18Southeast PA Post Number: 1968 Registered: Jul-06 | Dude, I don't know how to make this any clearer: ***** SET YOUR GAIN PROPERLY ****** .5 is WAY too high. Almost every HU has a minimum of 2 volt outputs, most have 4 or 5 volts. You may have already damaged the subs from having it cranked up, that's the only thing I can see that could be wrong here. |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1115 Registered: Nov-04 | Yes, that's why they're frying. Setting gain to 0.5V means the amplifier expects 0.5V signal, which is weak, so it tries to compensate. Your HU is probably a 4V deck, so you need to set the gain to that and not any further. If you're not getting enough "bump," you need a bigger amp and preferrably one that's 1ohm stable. The amp's too much for one woofer, but it should work better without frying it - turn the gain down just so you don't fry the sub this time. |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1117 Registered: Nov-04 | LOL M.S. loves the HO alt and gain threads lol Thx M.S.  |
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Gold Member Username: Nd4spd18Southeast PA Post Number: 1973 Registered: Jul-06 | ^^^^ Lol, yeah I do. The two most misunderstood aspects of car audio. |
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Bronze Member Username: MrmexicanshoesPlano, Tx Usa Post Number: 17 Registered: Apr-07 | having trouble adjusting, it reads 4.0 VOLTS my target gain was 58.6....how would i adjust it that target |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1129 Registered: Nov-04 | what is 58.6 and where are you getting this number? |
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Bronze Member Username: MrmexicanshoesPlano, Tx Usa Post Number: 21 Registered: Apr-07 | from this link i was given http://www.subwoofertools.com/forum/setgain.asp |
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Gold Member Username: OlegSanta Monica, CA USA Post Number: 1139 Registered: Nov-04 | i put in your numbers on the site: 700W into 4ohms; target voltage was 52.9V. Steps 1 through 7 describe the process pretty well, you'll need a DMM. I'm about to get one and I suggest you do too, it's a small investment compared to the number of woofers you may be frying. I believe if you probe the speaker outputs of the amp, you'll need to adjust the gain until you're at 52.9V. |
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Gold Member Username: Nd4spd18Southeast PA Post Number: 1985 Registered: Jul-06 | ^^^^ Correct |
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