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Subwoofers
Choosing an amp to go with a sub?
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<blockquote data-quote="Jeffdachef" data-source="post: 8639941" data-attributes="member: 650438"><p>with alternators they have an idle amperage output at idle rpm around 750 rpm and a max output when you rev into 2k-2.5k rpm. That determines what your voltage drop will look like under load. If you drive around and bump it all the times, its fine to get the higher rated alt. However if you like to demo to friends or need frequent stops while driving, you'll have to rev the car in order for it to keep up with the 320/370 amp alt because the idle output is lower the higher your max is.</p><p></p><p>Also calculating wattage/voltage to amps is completely useless. Whatever power numbers you think you are getting on paper will never be your actual power numbers in real world. There's too many other factors you never bothered to factor in. Such as impedance rise, recording levels in music, those two things alone will already make your 4000 watt amp only make around 1000-2000 on music. so your amperage draw is way less. Its not that the amp is bad, no its just how physics work, its the same with any amp. Hence why i said the audiopipe 2k is barely enough for a lower end model of sundown. a sundown ZV5 definitely needs a 4k amp or higher to wake up.</p></blockquote><p></p>
[QUOTE="Jeffdachef, post: 8639941, member: 650438"] with alternators they have an idle amperage output at idle rpm around 750 rpm and a max output when you rev into 2k-2.5k rpm. That determines what your voltage drop will look like under load. If you drive around and bump it all the times, its fine to get the higher rated alt. However if you like to demo to friends or need frequent stops while driving, you'll have to rev the car in order for it to keep up with the 320/370 amp alt because the idle output is lower the higher your max is. Also calculating wattage/voltage to amps is completely useless. Whatever power numbers you think you are getting on paper will never be your actual power numbers in real world. There's too many other factors you never bothered to factor in. Such as impedance rise, recording levels in music, those two things alone will already make your 4000 watt amp only make around 1000-2000 on music. so your amperage draw is way less. Its not that the amp is bad, no its just how physics work, its the same with any amp. Hence why i said the audiopipe 2k is barely enough for a lower end model of sundown. a sundown ZV5 definitely needs a 4k amp or higher to wake up. [/QUOTE]
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Choosing an amp to go with a sub?
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