Matrix surround

Processor used by many surround sound formats that provide surround sound signals

MDF

MDF stands for “medium-density fibreboard,” which is an engineered wood product that is the formation of wood fibres glued together under high heat and pressure creating a flexible material.

midrange

Driver responsible for reproducing midrange frequencies most easily recognized by the human ear, typically from 300 to 6,000Hz

Monopole

Speaker designed to generate sound that projects forward

Multichannel audio

Sound recordings that contain more than two channels of audio