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Car Audio Equipment
Amplifiers
Setting amp gain to match head unit voltage.
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<blockquote data-quote="Sync45" data-source="post: 8600798" data-attributes="member: 673803"><p>Hey guys I had a question about setting my amp gain to match my head unit voltage. I have 2 kicker 12's that are 400 watts rms each at 2 ohms, and a jl audio jx1000.1 that is 1000 watts rms at 2 ohms. So to get target voltage I did 1000*2=2000. Then the square root of 2000 is 44.7 volts.</p><p></p><p>Now since my subs are rated lower then my amp should I use those numbers instead? So 800*2=1600. Then the square root of 1600 is 40? Also what if the voltage even with my gain all the way up won't reach that?</p><p></p><p>I have all the settings on the head unit zeroed out, and the lpf down all the way. Also bass boost all the way down. Head unit turned up 3/4 and playing a 50hz 0db test tone. I have true rms dmm, so it should be an accurate reading correct?</p><p></p><p>I do notice that I can use the bass boost to reach the correct numbers, but I didn't know if that was ideal or if it should be done with just gain.</p><p></p><p>Thanks for your help.</p></blockquote><p></p>
[QUOTE="Sync45, post: 8600798, member: 673803"] Hey guys I had a question about setting my amp gain to match my head unit voltage. I have 2 kicker 12's that are 400 watts rms each at 2 ohms, and a jl audio jx1000.1 that is 1000 watts rms at 2 ohms. So to get target voltage I did 1000*2=2000. Then the square root of 2000 is 44.7 volts. Now since my subs are rated lower then my amp should I use those numbers instead? So 800*2=1600. Then the square root of 1600 is 40? Also what if the voltage even with my gain all the way up won't reach that? I have all the settings on the head unit zeroed out, and the lpf down all the way. Also bass boost all the way down. Head unit turned up 3/4 and playing a 50hz 0db test tone. I have true rms dmm, so it should be an accurate reading correct? I do notice that I can use the bass boost to reach the correct numbers, but I didn't know if that was ideal or if it should be done with just gain. Thanks for your help. [/QUOTE]
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Setting amp gain to match head unit voltage.
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