? alot of the alpines have 2v output, is this bad, i keep hearing good things about alpine hu's will this be noticibly different rather than a 8v output from an eclipse hu?
It just describes the signal strength to the amp. The higher the voltage, the cleaner the sound. The reason why you might want to go with lower voltage outputs is because some amps aren't compatible with the higher voltage outputs such as the 8v.
if you are listening to a crappy burned mp3 mix then its not really going to make a whole lot of difference but the eclipse will genereally give a better sound on things like CD's especially bc it has 24 bit DAC instead of 1 bit
i think a good way to visualize it is say there is going to be X amount of noise in your system well with 2 volt it will be X divided by 2 but with 8 volt it will be X divided by 8 so it will have proportionately less since it will be looking for a bigger signal
although the amps arent constantly at 8v
johnathan or glass can probably explain this a little more clearly considering they are pros but thats how i was trying to describe it to subfanatic earlier