So I realize that the pre out voltage is the voltage it sends through the RCA's and that having a higher voltage means more volts going through the RCA's and reaching the amp which means your amp has more to work with but Im just wondering how big of a deal that is as far as "loudness" gos
Im pretty much on my first system and the first thing I bought (before researching) was a sony head unit with .5v pre outs. Recently the left side RCA's seem to be dropping voltage. The entire left side of my car seems to be not as loud. If I go to my mono block amp and I remove the right RCA (which seems to be more powerfull) the subs will get really quite. the same goes for my speaker amp. the left side is quite enless i flip the RCA's around. So I figure my head unit is going. THis made me wonder if I switch from a .5v pre out head unit to lets say a 2v pre out head unit will my system get noticabbly louder. By the way im not talking numbers wise but will that be enough change for my to actually notice a difference.