05 obs Show full post »
snafu
Then, that means that the amp can't make the power they claim it can. It's just math . . . let's take the 150 amp "rating" and work it backwards:

150 amps * 14.4VDC * .75 = 1,620 watts

Assuming the amp is 85% efficient (unlikely, but possible with Class D in a perfect world):

150 amps * 14.4VDC * .85 = 1,836 watts

Obviously, a higher input voltage coupled with an unregulated power supply design could yield higher numbers.
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Mr.Sears one 15 sub from hell
Quote:
Originally posted by snafu:
Then, that means that the amp can't make the power they claim it can. It's just math . . . let's take the 150 amp "rating" and work it backwards:

150 amps * 14.4VDC * .75 = 1,620 watts

Assuming the amp is 85% efficient (unlikely, but possible with Class D in a perfect world):

150 amps * 14.4VDC * .85 = 1,836 watts

Obviously, a higher input voltage coupled with an unregulated power supply design could yield higher numbers.
Exactly,still good power for the money,I also noticed,that certain companies rate their amps at peak power ..ex pa3000=3000 peak,1500rms,pa2400=2400 peak,1200rms.ppi3000/1,3000 peak,1475rms etc...
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05 obs
i wonder wtf the tech told me 150 for? anyone run atomic 2200.1?
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RE-tardedF150
yea on 12 volts the PA's at best are good for about 1500-1600 watts. They seem to like a reactive load close to 1ohm per amp, not much below that. We got the best results from Kole Audio 3000d's(same as PA's) with a reactive load of about 2.4ohms for a strapped pair, and were getting around 3500 watts per pair with a bunch of batteries behind them.
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bigpopa
i run mine 2amps strapped per coil on dvc .7 dd subs.no problems,good amp for the money.imp. rise is 1 ohm,so each amp is running at .5 ohm,i think.correct me if i'm wrong.
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bigpopa
oh! i may add ,that's on 16 volts too.an my owners manual states amp draw is 160,thats in all 16 of my owners manuals.
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RE-tardedF150
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POWERACOUSTIK BLOWS DD SUBS.
Try getting a little higher reactive load on the amps. They'll be ALOT more efficient with a good bit less distortion. Might help with the above problem.
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bigpopa
thanks,will try that.
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