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Bronze Member Username: SchinnerPost Number: 37 Registered: May-07 | so what voltage am i looking for when setting the gain the dmm way??? amp = 750 rms 1 channel subs take 300 rms each |
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Platinum Member Username: James1115Use a simple... Post Number: 10095 Registered: Dec-04 | it depends on what your headunits rms voltage is. |
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Bronze Member Username: SchinnerPost Number: 40 Registered: May-07 | hu = 17 rms why does that matter for the amp gain? |
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Silver Member Username: ImalikSD2.5......ED9.1=Boom, New Jersey Audioque...N... Post Number: 322 Registered: May-06 | This should help you http://www.subwoofertools.com/forum/setgain.asp |
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Platinum Member Username: James1115Use a simple... Post Number: 10097 Registered: Dec-04 | you are not looking at your headunits power output you need to know your headunits rca voltage output. what kind of HU do you have? |
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Bronze Member Username: SchinnerPost Number: 41 Registered: May-07 | o....sry i dont know the rca power output....old jvc hu, can i measure the output with a dmm? and with the subwoofertools it says 34.6 or so volts.....if i set it at that i get clipping so idk what to set it to |
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Platinum Member Username: James1115Use a simple... Post Number: 10100 Registered: Dec-04 | a old jvc is prob 2 volt rms output what model jvc is it? |
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Bronze Member Username: SchinnerPost Number: 43 Registered: May-07 | per manual....for hu line-out/level output: 2.0volt/2kohm load (full scale) is that what you were looking for? |
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Bronze Member Username: SchinnerPost Number: 45 Registered: May-07 | shoot i could go get model number if that will help....just let me know |
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Gold Member Username: Nd4spd18Southeast PA Post Number: 2528 Registered: Jul-06 | WTF are you people talking about. You do not need to know anything about the HU preout voltage. Kyle: http://www.subwoofertools.com/forum/setgain.asp http://mobile.jlaudio.com/support_pages.php?page_id=143 Use those links to set your gain. All you need to know is the RMS power rating of your amplifier at the impedance (ohms) that you are running it. |
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Bronze Member Username: SchinnerPost Number: 46 Registered: May-07 | okay...but the subs arent rated to handle all of that power so should i use the rms power rating of the subs....300 x 2 = 600watts rms?? |
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Gold Member Username: Nd4spd18Southeast PA Post Number: 2542 Registered: Jul-06 | Yes, in that case you would use the power handling of the subs |
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Silver Member Username: JkidderSpring hill, Florida Usa Post Number: 612 Registered: Nov-05 | exactly^ i was wondering wat the hu preamp voltage had to do w/ gain???? |
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Gold Member Username: Th3pwn3rPost Number:... Post Number: 2706 Registered: Jul-06 | "exactly^ i was wondering wat the hu preamp voltage had to do w/ gain????" It has a lot but things posted in this thread didn't make sense. |
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New member Username: Brado6Post Number: 2 Registered: May-07 | atm i run 1 subwoofer in my car. with one amp. i want to run 2 subwoofers now that are both 1300 watts each instead of having 2 amps is there one amp that will power them both n how much are they n where they from ? as i cba wireing up 2 amps as ive been told that its hard work. and halfords wont do it for me |
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Gold Member Username: JuliobSanto DomingoDominican Re... Post Number: 4629 Registered: Dec-05 | "1300 watts each" RMS or PEak. Peak isn't useful at all. Post your budget, your subs, DVC of the subs |