10 kw amp?

[Hydrastas 10+ year member]

Im just curious as to what setup someone uses to operate a Hifonics XX-Maxximus 10000 watt amplifier? I could not locate an alternator capable of more than 1100 amps.... Would you have to have several big *** alternators to use this amplifier? How many batteries would you use as well? Wouldn't it just be easier to increase the voltage to 120 volts so you would have less amperage draw as well...1100 seems too high for some reason?

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[bonesninja 5,000+ posts]

if batteries could produce AC voltage it would hardly be an issue...simply use a step up transformer with a 1:10 winding ratio and you could step up your 12volt bat to 120. But since this is the real world and batteries produce direct current, you simply need lots of amps to run 10,000 watts. For a idea of what it takes, looking into say Scottie j's vans and see what it takes to run his stuff cuz it's quite a bit more than 10k watts

 

[snb778 5,000+ posts]

good question...i was in a guy escalade suv not to long ago...he had a maxximus in there powering 10 12" hifonics subs and he had a 42" flatscreen in the back...i never bothered to ask him how he was powering it though... I talked to him about a week ago and he said next summer he wanted to do 20 10's and 3 maxximus's...hahaha...those things are huuuuuuuge............but on a similar topic...how about this new `15KW RF amp....states to be OVER 100% efficient...it explained how in the mag......but ****!

 

[helotaxi 5,000+ posts]

but on a similar topic...how about this new `15KW RF amp....states to be OVER 100% efficient...it explained how in the mag......but ****!

They can try to explain all they want but unless they have come up with cold fusion, it's all BS. This wasn't in the April issue of the mag was it?

Typically SPL vehicles in the more ridiculous categories have a combination of multiple alternators and a very large number of batteries.

You can't just "step up" even AC voltage and suddenly make power from nothing. Say that you did only need 10A @ 120V to power an amp and you had a source of 12V AC. If you hook a 10x transformer to the 12VAC source and try to pull 10A from the 120VAC side of the transformer, you had better be able to provide over 100A of current on the input side. Because nothing is 100% efficient, you will have to put in more power than you get out.

Basically all the power supply of a car amplifier is is an oscillator to turn the DC input into pulsating DC and an inductor/transformer to step up the voltage and a rectifier bridge to convert it back to DC. Again, there are losses within this process because of resistance, so the power in is greater than the power out and rest is lost as heat.

 

[bonesninja 5,000+ posts]

They can try to explain all they want but unless they have come up with cold fusion, it's all BS. This wasn't in the April issue of the mag was it?
Typically SPL vehicles in the more ridiculous categories have a combination of multiple alternators and a very large number of batteries.

You can't just "step up" even AC voltage and suddenly make power from nothing. Say that you did only need 10A @ 120V to power an amp and you had a source of 12V AC. If you hook a 10x transformer to the 12VAC source and try to pull 10A from the 120VAC side of the transformer, you had better be able to provide over 100A of current on the input side. Because nothing is 100% efficient, you will have to put in more power than you get out.

Basically all the power supply of a car amplifier is is an oscillator to turn the DC input into pulsating DC and an inductor/transformer to step up the voltage and a rectifier bridge to convert it back to DC. Again, there are losses within this process because of resistance, so the power in is greater than the power out and rest is lost as heat.

Actually you can step up AC voltage quite easliy...its called the step transformer. Its dependant on the windings on each side of your inductor. For instance on the primary side of the transformer you would have 1 coil for each 10 coils on the secondary side. Induction has been around for years and so has transformer, there are 3 types, step down, step up and isolation. I'm very suprized to hear that comment from you helo.

LOL Nevermind, i just read your whole post, you are absolutely right, you can't get something for nothing. For practical purposes on a transformer power in-power out and by stepping up the voltage you also decrease the current proportionally.

 

[maxxguy1 10+ year member]

I know someone who has 2 maxxsimus amps for extream 1 in db drag and I think he has a bank of 34 17volt kenetic 2400s to keep up with those amps.Oh and by the way that was on re mt 18. It use to pull off a 171.2 I belaive on the term.

 

[SyKo13 5,000+ posts]

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[joetama 5,000+ posts]

Reminds me of 'Back to the Future' 1.21 Gigawatts FTW!!!

Ever seen the inside of that RF 15KW? It's all caps, and I'm pretty sure it wont sustain 15KW, it's made to slowly charge all the caps so that your electrical wont want to put a bullet in it's brain then BAM!!! Blows all the stored energy out the output transistors.

 

[ngsm13 5,000+ posts]

Welcome to like a year ago...

nG