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Watts vs Electrical


Cj Kumz

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Posted

Hey guys. If you wanna know how many watts your amp is actually producing, do you add the amps of your battery and your alternator to find total amps. Then multiply by the volts then by the efficiency of the amp??? I am abit lost on how to know how many amps an electrical can produce

Vw Polo

Pioneer Deh-6050UB

Sundown Saz-3500d

DD Audio 9500 15''

5.5 cubic feet box with 10 inch port @ 38hz

I live to hear the Bass drop!!!

Posted

Look through these videos. There is more to calculate rms then volts x amps

http://damoreengineering.com/freeeducation.html

2012 Chevy sonic1xSQ HDC3 12 D2RF R1200d

140 square foot of Q-Mat(soon to be installed)

140.2Db sealed on the dash with TL

142 DB sealed on the dash with another meter (was dead on with the TL at a show i was at)

141 on music.

strangeduck,on 02 Jan 2014 - 01:39 AM, said:

when my car spins out i just put the car in neutral, turn in the direction i want to go and pucker my asshole

Posted

Where to start.

Ok, first thing to remember is that any amplifier is going to draw more power than it makes, Thats just the way it is.

That being said, you can find out how much your amp is drawing if you knew the amperage coming to it and the voltage. Problem is, both change rapidly while playing music so it isn't a constant draw. You can't just say your electrical is capable of producing x amount of amperage at y voltage and assume that is what your amp is getting. Oh and by the way, it's all DC current up to the amp input. It's AC current on the output side.

Posted

Here is a new video I found. He must be doing something right. At 2:06 he is plugging the SMD DD-1. lol.

Why do you want to know how many watts your amp is really putting out?

If it doesn't move the subs enough, than it's not putting out enough watts, so you'll need to move up.

That's how I do it. I buy amps used so it's a doable proposition. So if one is not prepared to upgrade, than

what is the point of knowing? lol.

I see like this, there are some women who want to get the diamond ring appraised just to see know how much he spent on it.

Ask "Why?" and you get "I just want to know"...."Why?" "I just want to know".... "Are you going to upgrade after you know?"

....."No I just want to know"...."If the rock is big, and you're not going to upgrade, why know the value?" lol.

Point of the story, do not get hung up on a value if you can't fix it after you know. Get it?

-Frank

Posted

Clamping can be accurate if you use the right tools, such as an oscilloscope to find the maximum output voltage that is clean.

It just requires more money spent and more knowledge to get an accurate RMS with clamping over an AMM-1 or a Dyno.

b_350_20_692108_381007_FFFFFF_000000.png

Krakin's Home Dipole Project

http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370

Krakin, are you some sort of mad scientist?

I would have replied earlier, but I was measuring the output of my amp with a yardstick . . .

What you hear is not the air pressure variation in itself

but what has drawn your attention

in the two streams of superimposed air pressure variations at your eardrums

An acoustic event has dimensions of Time, Tone, Loudness and Space

Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears,

thus no formula can achieve a definite effect for every listener.

Posted

Clamping isn't accurate.

I want to get a clampy thing just to have on in my arsenal. Years ago I had to buy 3 different multimeters to survey each electrical component on my ZX7R as to why she wouldn't start. Every electrical connection worked as it was supposed to yet she wouldn't start. After $75 worth of multimeters later, (PUNCH LINE) turned out it was the crappy battery. ;)

......Well, at least I have 3 multimeters!

-Frank

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