cheap watts vs. expensive ones

[jdubs]

Okay so this is kinda nerdy but I'm going to college for engineering, and this is the way I think.

All magnetism formulae that i know all use amperage, not voltage, to measure magnetic force, and therefor the force of the bass.

Now, remembering that watts is equal to: volts * amps.

Doesn't it make sense that the difference between the cheap 1600 watt amps, say a brutus, and a way more expensive one, a t1500-1 is that...

Brutus formula for watts... big VOLTS * little amperage = 1600 wattss

Where the rockford might be... little voltage * big Amps = 1600 watts

The rockford would be louder because there is more amps and therefor more magnetic force

Just a thought... anybody have an opinion?

[jake1993]

Okay so this is kinda nerdy but I'm going to college for engineering, and this is the way I think.

All magnetism formulae that i know all use amperage, not voltage, to measure magnetic force, and therefor the force of the bass.

Now, remembering that watts is equal to: volts * amps.

Doesn't it make sense that the difference between the cheap 1600 watt amps, say a brutus, and a way more expensive one, a t1500-1 is that...

Brutus formula for watts... big VOLTS * little amperage = 1600 wattss

Where the rockford might be... little voltage * big Amps = 1600 watts

The rockford would be louder because there is more amps and therefor more magnetic force

Just a thought... anybody have an opinion?

wouldnt it be the same though if both are putting 1500 watts out? ...

[AssKicker]

Only thing is that is that in a car you will have the same voltage for either application, thus the rf will rape the hifonics.

[Integra_boomer]

wouldnt it be the same though if both are putting 1500 watts out? ...

ya power is power

[korey_hofer]

difference is the quality of the power that comes out, cheap amps are dirty as hell

[jdubs]

wouldnt it be the same though if both are putting 1500 watts out? ...

no... because of the way a speaker works. The voicecoil essentially becomes a magnet as a charge moves through it.... making it repel/attract to the stationary magnet- hence movement. The magnetic force on a coil has to do with amperage, not voltage. Meaning some watts could be stronger/weaker when it comes to moving a sub.

[jdubs]

Only thing is that is that in a car you will have the same voltage for either application, thus the rf will rape the hifonics.

umm... no... the voltage the amp puts out (not going in) will vary depending on circuitry. Im talking the AC power that the amplifier delivers

Plus if the amperage and voltage were BOTH big.. you'd exceed 1500 watts lol.

[Autruche]

I've always wondered this, like 50v at 100a is the same power as 100v at 50a. Theoretically they should be a perfect match, but the higher quality circuitry in a better amp may produce more stable power, therefore getting less distorted and being able to be turned up higher without distorting. It's more of a "Clean watts vs Dirty watts" thing. As far as I can tell, it's generally the same amperage, just different levels of voltage for an amps output. Stare at this chart maybe?

[jdubs]

I've always wondered this, like 50v at 100a is the same power as 100v at 50a. Theoretically they should be a perfect match, but the higher quality circuitry in a better amp may produce more stable power, therefore getting less distorted and being able to be turned up higher without distorting. It's more of a "Clean watts vs Dirty watts" thing. As far as I can tell, it's generally the same amperage, just different levels of voltage for an amps output. Stare at this chart maybe?

yeah the amperage rating is not constant on that chart.. it needs to be calculated- volts/ohms... i really don't know without testing it. I think the best way to test this theory is to clamp two amps (one cheap, one expensive) and compare the ratios of voltage to amperage. That chart shows another thing about the voltage/amperage ratio. 1800 watts at two ohms has a lower amperage than 1800 watts at one ohm, which would mean less magnetic force and less force behind the bass.

[Autruche]

If I had a clamp meter I'd clamp my crappy "4kw" lanzar and clamp my buddy's t4000bd both tuned for the same wattage and give you the results to toy with. that would be a good example of a cheap amp vs a good amp.