4) refers to some subwoofer current inside the system. This type of setup should have a committed speaker designed to drive out the bass notes, and that’s carried out Along with the subwoofer. It's always squat and boxy, and is particularly made to be placed at flooring stage, where by https://home-projector23073.boyblogguide.com/32126419/the-best-side-of-best-av-receiver