Originally Posted by
Fabrik8
Being mono or stereo has nothing to do with whether "voices come out". This only has to do with whether both left and right channels are separate (stereo obviously) or have been combined into a single channel (mono).
I think what you mean to say is that coming from a head unit, outputs that are stereo are usually full bandwidth, meaning they output the entire frequency range of the music, whereas mono outputs are often already low-pass filtered so they only output frequencies meant for a sub.
This just means that you have to know what type of outputs the head unit has, which determines whether or not you will need to use a low pass filter for your sub amp.
yeah you got it man. i guess i was just using it as an example of how stereo would sound vs mono. but Fabrik8 is correct, it also depends on the outputs of the deck you have. some decks have preouts for subs (mono) which would then solve this issue. if you have a factory deck you will need to purchase a LOC (line out converter).