nysupraman

i know from past experience that after buying a in dash DVD player, i had to get a new sub and amp because it was playing too poorly thru my stock system. i just wanted to know if this is true with all models and brands of DVD players? are there any brands you could get away without changing stock sub and amp? i really dont need super thump in my car, i like the stock 10inch just fine. i might get another SC, and wanted to see if i could get away without changing the stock sub and amp.