Subwoofer Preamp Output?

[rugbeanz]

im trying to decide what i should get for a head unit for my new subs and speakers. i was wondering about sub preamps. if someone could explain what that is compared to a regular preamp output and if it is worth it? Thanks!

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[wew lad 5,000+ posts]

why do you keep posting multiple threads asking the same thing? doesnt make people want to help you. so far youve started 5 threads with only 2 of them being unique, and 3 of them being basically spam/duplicates?

this information is readily available if you spend time doing research on google instead of spending time posting multiple threads.. but to answer your question you wont need a sub preamp with just about any aftermarket headunit

 

[rugbeanz]

sorry im kind of new to this i was just posting them in different categories

thanks for the help though