Stupid Amp question!

[Dustin19 10+ year member]

Ok im trying to get this shit all figured out so i can finally install my SE12. Anyways i have An MTX 6500 D amp, and it says at 12.5 VDC at a 2 ohm load it will do 500w times 1. So um what the hell does this mean? And at 14.4 VDC at a 2ohm load it will do 775w times 1. Im pretty confused because i want to use all of that 775 watts for my sub. Oh yeah i have a stock alternator and battery just to let you guys know!

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[Norcalracer283 10+ year member]

Well, i think when ur car is on, it will put out 14.4 volts.....pretty sure thats how that works....maybe the other number is for when ur car is not running.....just taking voltage from the battery....but i am not sure.

 

[bigred1 10+ year member]

somebody correct me if i'm wrong but the 12.5 and 14.4 refer to the current from the battery. more current, the more power the amp can put out. usually done by some companies to inflate numbers of amp.

 

[supa_c 5,000+ posts]

Ohms law //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

More Volts= more watts.

more amps= not more watts

 

[RandyJ 10+ year member]

Ohms law //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gifMore Volts= more watts.

more amps= not more watts

x2

When your car is off, the amp will give the sub 500watts, when its on, itll give it more.

And also, the ratings are 500x1; that means that the amp supplies 500 watts of power into one cahnnel, 500x2 would mean it supplies 500 watts of power into two channels. Im not sure if you know this or not because you stated the ratings as 500 times 1, makes it seem your a little unsure of the ratings.

 

[squeak9798 5,000+ posts]

somebody correct me if i'm wrong but the 12.5 and 14.4 refer to the current from the battery. more current, the more power the amp can put out. usually done by some companies to inflate numbers of amp.

Not current; volts. 12.5 volts and 14.4 volts.

So, basically it's tellin you that if you can give the amp a solid 14.4V, then it will produce 775w RMS. The less you feed it, the less power it puts out.

Most cars when running run between 13.8 and 14.4V......that is, until we put these huge amps in and cause all kinds of electrical problems and voltage drops //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[supa_c 5,000+ posts]

Most cars when running run between 13.8 and 14.4V......that is, until we put these huge amps in and cause all kinds of electrical problems and voltage drops //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

He he he, 11V from a full 12.3V //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif//content.invisioncic.com/y282845/emoticons/waycrazy.gif.f4a380c3f94043939fd369defd9e6be2.gif//content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif