is there any thing different about the sound in the bose systems vs the monsoon systems do the bose systems use the 6x9s as subwoofers to or are they full range and is it only the rear deck speaker that have a amp on them also i know that the rear deck 6x9s are 2 ohm i changed my rear door 5.25s and they were 4 ohm are the front 6.5s 2 or 4 ohms