How much watts do i need in my amps to run my 4 speakers and sub?

Question

this is for my car system, im looking for a 4 channel amp:

-should the rms watts on the amp be less than those of the speaker?(so no damage is done at full volume)

-what if they were exactly equal? like 4 (120 rms watt) speakers hooked up to a 480 watt amp?

-What if they were more? like a 1000watt amp connected to 4 120rms watt or 200rms watt speakers

and should the same apply for the sub woofer? i don't want anything breaking apart my car, i found a 600watt subwoofer, will it be fine if i connect it to a 280watt amp? will the output be good enough?

Answer 1

i would have to say around 4K watts

Answer 2

Speaker wattage is confusing at best, home or auto. Generally, higher amp rms output is better than a higher speaker rating (as it is rare that a speaker will actually 'see' its max rating). There is a general misconception that high speaker ratings = LOUD clean sound. At any rate, go for higher amp output. General listening you can chat over easily is probably under 5 to 10 watts. Easily heard audio output can be as low as 1 watt rms. But music does not stay at one level.... Even cranked, the AVERAGE wattage may only be 25 watts but peaks (especially in the base range) may top 100 or more. As a guide, doubling dbs (sound) levels normally requires ten times as much amp output!!! Which is to say, if 10 watts delivers filling sound, doubling volume cleanly will require 100 watts output.

OK - a demanding question... too many factors (such as volume of space inside the car, speaker efficiency etc) to be exact. Generally, to sum up, allow a lot more amp output availability than speaker ratings. A speaker capable of handling 75 watts rms can comfortably and safely be coupled with a 300 watt amp.....

Answer 3

You amp is in all probability blowing your speaker because of the fact there is too lots potential going to them, you will possibly desire to examine the rms watts of the audio device and the Max watts to the audio device and surely you do not want an amp. the element is that the front and decrease back audio device run at diverse watts most of the time because of the scale so which you will desire to get a smaller amp for the front ones and use the 4 hundred watt for the rear. i don't even have an amp to my audio device and that they nevertheless sound great. and that i've got a Rockford fosgate 3 hundred watt subwoofer matched with a Rockford photos 3 hundred watt amplifier, and it defiantly provides a great deal of bass. yet i could pass with a 800 watt subwoofer. Or say 2 12in 3 hundred watt subs. And for the amplifier to the subwoofer i could maximum defiantly pass with a extra suitable powered amp, you will possibly desire to get a amp for only your subwoofer, so get a mono amplifier that suits the Max watts of the subwoofer!

Answer 4

It's best to get a 4-channel amp that matches the 4 speakers watts RMS per channel as well as the impedances. A seperate amp for the sub due to the difference in wattages.

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