- This Marshall subwoofer brings serious low-end power that turns your living room into a front-row seat - Pair it wirelessly with Marshall soundbars using Bluetooth LE Audio - just connect and let the bass roll in - Whether it's centre stage or tucked in a corner, this subwoofer packs a punch from anywhere in the room - The Marshall app lets you pair quickly, tweak the sound, and get everything dialled in just how you like it