Amplifier....?

Question

My radio has got output 4x45w. What power will I have if i connect a 500w amplifier (545w or 500w) output for the woofer?

Answer 1

If you plug in an external amp, you don't use the one that's built into the radio. It bypasses the head units amp completely, so you would have 500 watts MAX minus what you lose with other factors. You lose a little power depending on wire size, and some other factors, but it would remain around 500 watts. The external amp gets its signal from low voltage (~3-6 volts or so) signals.

Answer 2

500 the digital signal caried back by the rca cable has very little stregth but very good quality then your amp does all the amping imagine that

Answer 3

Ok your radio says it has a 4x45watt MAX output.  You are really only getting about 17-25 actual watts per channel.  Thats pretty decent to just run small speakers.  To power a subwoofer, you should first check the rated watts and try and match an amplifier to it.  For example, If the subwoofer you want says that it has 400 watts rms/800 watts peak, you want to set it up with an amplifier that will give it anywhere from 400-600 ACTUAL watts.  To find the actual watts of an amp(also known as RMS) check the amp's specifications.  If it has a bunch of listings such as

200 watts @ 4ohms

300 watts @ 2ohms

600 watts max or peak

then email me and i will explain ohms and resistance to you.

Answer 4

Like mine, I have 2 speakers hooked up to a machine where u can plug in mics, guitars and stuff, and most like if played load enough, it starts to smell"burning" or like that. Might happen with yours.