i just want to know exactly what RMS is
because some one explained it to me but i don't remember everything

thanks

 

it just means how many watts the amp puts out or the sub can safely take continuously...this is also a better rating to go by than the max power rating...see ya

 

yeah go by rms never peak. You'll almost never get peak power.

 

ok so the RMS on subs has to match the RMS on the amp?


BTW nice hatch:thumbup:

 

Newbie to the forum. Hope I can help out sometimes.

The peak rating of an amplifier is what the amp can provide in short bursts. Like for a sudden bass hit. The RMS of the amp is what the "continuous" power output the amp can provide over time. The true RMS and the Peak value of amplifiers is related by the square root of 2 (or .707). You can find the RMS value of an amp by multiplying the peak power by .707. The peak power of an amp can be found by dividing the RMS value by .707.

You are correct about the matching of the RMS values for amps and subs. Matching both the RMS values is ideal, but if you have to fudge, it's better to go with a higher sub RMS value than the amp rather than the other way around. Will help to keep your equipment in good shape.

Mish

 

RMS stands for Root Mean Squared. This means that the relationship between voltage and power is a square root relationship. It is very simple to calculate the RMS value given the Peak or vice versa. In order to do this we take the Peak Value / sqrt(2). sqrt = square root (). Given the RMS value and wanting to calculate the peak we do the opposite math. take RMS x sqrt(2) and that will give peak.

 

i wouldnt even care for rms much...
some companies bench test their amps at 14.4
some test at 12.9

some amps can b severely underrated...while others can b extremely overrated

best is to ask the people with the amps for real numbers on birth sheets..

 

thanks fellas

looks like i'll have to do my research
and to think i hooked up my first box in 1997 and i still don't know as much as i should