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A quick introduction to sound bars

Surround sound adds an exciting dimension to your home theater experience. However, in many cases, it is not possible to accommodate the necessary satellite speakers to create surround effects. There may be difficulties connecting the cables to the speakers, or there may not be enough space to fit them all. Without surround sound, you can only enjoy half the experience. This is where sound bars come in.

A sound bar is a specially designed speaker box that creates a stereo effect from a single cabinet. They are much wider than they are tall. This is partly for acoustic reasons and to have the convenience of being able to mount the speaker unit just above or below a screen, typically flat screen televisions. Due to space limitations, many HDTVs often have smaller speakers, resulting in poor audio quality and intelligibility.

How do sound bars achieve this?

A single sound bar replaces multiple speakers. A typical surround sound system incorporates three speakers in the front (left, center and right) and 2 or 4 speakers in the rear, for surround effects. A three-channel soundbar replaces the three front-facing speakers. You still need the rear speakers for certain EFXs though.

A 5-channel soundbar can do it all: full surround sound from a single, easy-to-install speaker. Sound bars use multiple speaker arrangements and sophisticated electronic signal processing to simulate surround sound effects, including rear channels. It is truly remarkable how a single unit speaker can reproduce audio with great fidelity.

What does it mean with or without power on sound bars?

A powered/active soundbar is a fully self-contained surround sound system that connects directly to your home theater TV, DVD, Blu-ray player, and video game. There are two main advantages of a powered soundbar. First of all, there is no need to buy and install more equipment. Everything you need is shipped in the box. This is a pretty strong advantage. Second, the built-in amplification and processing are specially tuned to the soundbar’s case design, boosting its sound performance to higher levels.

A non-powered/passive soundbar plugs into a home theater receiver, just like regular speakers, but there’s only one. If you already own a home theater receiver, a non-powered soundbar might make more sense. And even if you don’t already own a home theater receiver, a non-powered soundbar allows you to purchase a separate receiver that can accommodate your room and its components better than a powered soundbar.

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