Glass sub help
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New member Username: InprogressPost Number: 3 Registered: Jul-04 | wiring my sub tonight titanium 10 3.1 ohm set up both voice coils (I only drive to and from work 10 miles 1 way in this car) bridging 800@2 rockford |
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New member Username: InprogressPost Number: 4 Registered: Jul-04 | can i set up both voice coils or will this kill my amp any help is greatly appreciated |
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Gold Member Username: GlasswolfNorthWest, Michigan USA Post Number: 4289 Registered: Dec-03 | I'm not sure I understand the question. |
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Bronze Member Username: InprogressPost Number: 12 Registered: Jul-04 | how should I wire my sub , both voice coils? since they are 3.1ohm(I have always had 4 ohm and wired to 2ohm) I dont want to blow my sub or my amp |
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Silver Member Username: GrmncrsnbrVA Post Number: 296 Registered: Jun-04 | really depends on the amp. its either gonna run at 6.2 ohms series or 1.55 ohm parellel which means you need an amp that will work at either 1 or 8 ohm. I could be wrong but i think this is right. Since your getting an odd ohm rating that is between what most ratings are you have to have an amp that is stable at the ohm ratings around it like 1 and 2 ohm if you parellel them. |
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Bronze Member Username: InprogressPost Number: 14 Registered: Jul-04 | my amp is rockford fosgate 800@2 |
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Silver Member Username: JayjLouisiana USA Post Number: 399 Registered: May-04 | Wire one voice coil to each channel. You have GOT to wire BOTH coils if not you will f*ck up the sub. |
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Gold Member Username: GlasswolfNorthWest, Michigan USA Post Number: 4293 Registered: Dec-03 | who told you the coils are 3.1 ohms? that sounds moer like the RE value not nominal impedance. I'd be willing to bet they are dual 4 ohm |
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Silver Member Username: GrmncrsnbrVA Post Number: 297 Registered: Jun-04 | yeah looking at the specs on boost car audio they are 4 ohm dvc |
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Gold Member Username: GlasswolfNorthWest, Michigan USA Post Number: 4299 Registered: Dec-03 | the DC resistance would be 3.1 ohms, but the nominal AC impedance is actually 4 ohms. |
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Bronze Member Username: InprogressPost Number: 16 Registered: Jul-04 | god u guys i love you i am stupid but learning thanks so much |
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Bronze Member Username: InprogressPost Number: 17 Registered: Jul-04 | this rockford will be ok at 2ohm for 10 minutes a day right |
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Silver Member Username: Jonathan_fGA USA Post Number: 880 Registered: May-04 | Is it a mono or 2 channel? I know you mentioned bridging above. If so, you can't bridge an amp for a 2 ohm load (unless it's 1 ohm stable) and it will either go into protection or overheat. |
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Bronze Member Username: InprogressPost Number: 18 Registered: Jul-04 | it doesnt say it is stablt but my 360@2 I ran it at 2ohm for hours on end would get hot but never cut-off |
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Bronze Member Username: InprogressPost Number: 19 Registered: Jul-04 | rockford fosgate old-school style 800@2 is my amp |
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Silver Member Username: Jonathan_fGA USA Post Number: 881 Registered: May-04 | So it's a 2 channel? You can run it at 2 ohm bridge for a little while (VERY little while), but you'll risk overheating it. If it's a mono amp, a 2 ohm load is fine. |
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Bronze Member Username: InprogressPost Number: 20 Registered: Jul-04 | 2 ohm stable 2 channel it says but doesn't say bridged |
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Silver Member Username: Jonathan_fGA USA Post Number: 882 Registered: May-04 | ok then, 4 ohm bridge is the max. they'll recommend. What are the power ratings of the amp at 4 ohms, 2 ohms, and a 4 ohm bridge? |
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Silver Member Username: Jonathan_fGA USA Post Number: 883 Registered: May-04 | I recommend running one coil to each channel of the amp for now and underpowering the sub, then eventually saving for a mono amp or another 2 channel that will put out the recommended power within it's limits. A 2 ohm bridge will only work for VERY short periods of time, if at all (protection may not allow it) and you risk damage to the amplifier, and possibly the subwoofer. |
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Bronze Member Username: InprogressPost Number: 21 Registered: Jul-04 | 200x2 4 ohm 400x2 2 ohm 800x1 4 ohm |
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Silver Member Username: Jonathan_fGA USA Post Number: 884 Registered: May-04 | I would definately recommend running one coil to each channel, or bridging the amp, wire the coils in series for an 8 ohm bridged load. Remember that a 2 ohm bridge will have close to double the power of a 4 ohm bridge, giving the sub somewhere between 1500-1600 RMS, plus the reliability and poor performance issues. 2 ohm bridge would be asking for trouble. |
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Bronze Member Username: InprogressPost Number: 24 Registered: Jul-04 | just ran one channel to each coil now I need a new head unit mine has 2.5 volts on sub output |
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Bronze Member Username: InprogressPost Number: 31 Registered: Jul-04 | Thanks for the help |
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Silver Member Username: Its_bacon12Hfl, Ny Usa Post Number: 963 Registered: Dec-03 | you could be better off getting a brahma 10" or triple x 10", dual 2 ohm version so you can get 800w rms to it  just an idea if you dont already have the Ti |
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Bronze Member Username: InprogressPost Number: 34 Registered: Jul-04 | already got it and built the box I am happy with it be happier when I get 4 volts to it instead of 2.5 You think that will make a big difference |
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