| Active Subwoofer | |
| A type of loudspeaker specifically designed to produce extremely low frequencies acts as most important part to handle 5.1,6.1 & 7.1 sound tracks. In home theater, a separate track referred as .1 channel is recorded for the active subwoofer. Without an active sub your home theatre set up is incomplete. These are typically powered by their own amplifier, separate from the main speaker amplifiers. | |