? about ohms law

[nauc 10+ year member]

my sub amp is putting out 90 volts, deck set to 24 out of 35

so....

2025 x 4, then sqrt = 90 volts

my amp is the a1200

it cant put out 2025 watts

its only got a 40 amp fuse

http://shopping.yahoo.com/p:Mobile%20Authority%20A1200%20Car%20Amplifier:1991311561;_ylt=A9htdfr_RL9D9FYBZAJXv1kB;_ylu=X3oDMTBubTltdDRnBF9zAzg2MzE0NDAwBGx0AzQEc2VjA3Ny?clink=dmss//ctx=sc:ael,c:ccar_audio_amplifier,mid:59,pid:1991311561,pdid:59,pos:3

Click to read more...

 

[qtipextra 5,000+ posts]

No, it puts out around 300 RMS to each channel. It doesnt say it is bridgeble, so it prob isnt.

 

[nauc 10+ year member]

so whats the point of using ohms law to set your gain when voltage doesnt equate to power

 

[stones 10+ year member]

When the amp is driven into clipping voltage spikes well beyond rated power occur.

If you had an osilliscope to show you when clipping is happening and adjusted accordingly the clean output voltage would be around 40 volts bridged.

40 x 40 =1600 divided by 4ohms equals 400 watts (which is a more realistic output figure of the amps bridged power)

 

[azbass 5,000+ posts]

No, it puts out around 300 RMS to each channel. It doesnt say it is bridgeble, so it prob isnt.

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[squeak9798 5,000+ posts]

so whats the point of using ohms law to set your gain when voltage doesnt equate to power

Ohms law will also be accurate. There is a reason it's called a law.

If Ohms Law isn't working for you, then the problem is you and not Ohms Law.

Now...that said; sounds like you are either severely clipping the amp, or the DMM you're using is very inaccurate. Or something along those lines.

 

[audiolife 5,000+ posts]

Ohms law will also be accurate. There is a reason it's called a law.

If Ohms Law isn't working for you, then the problem is you and not Ohms Law.

Now...that said; sounds like you are either severely clipping the amp, or the DMM you're using is very inaccurate. Or something along those lines.

was going to say the exact same thing lol