This is going to be our first installment in an attempt to explain today’s technology in a way that anyone can understand. Our goal is to arm you with enough knowledge to enter your local “Big Bucks Electronics” store and shop with confidence. So without further hesitation.
The term “Surround Sound” is used to describe an audio delivery system in which the sound comes from more than 2 speakers to create a field of dimensional perception for the listener. Typically you will see labels like “5.1″ or “7.1″ with the latter being the most popular. What this designation means is really simple. The number before the period designates how many primary speakers (front and surround) are used. For example the 5 in 5.1 means that there are 2 speakers for the front left and right channels, 1 speaker for the center channel, and 2 speakers for the rear surround channels. The number after the period (typically always a 1) refers to the sub-woofer channel. The sub-woofer delivers the low booming sounds from explosions, gun fire, roaring engines, and deafening blows from linebackers in your favorite programming.
On 99% of all surround systems in order to enjoy true surround sound you must connect your source devices (ex. DVR, DVD player, Xbox, Wii, or PS3) to the Receiver via a digital connection. A digital connection requires only one cable to send the audio connection as opposed to the old stereo RCA connections you may be used to. These cables can be either Optical (aka TosLink, or Fiber Optic) or Coaxial (looks similar to a single RCA Jack) which ever your device requires. (ATTENTION: You can not get true Surround Sound from a Left and Right RCA connection).
My recommendation when shopping for a surround system would be to first and foremost steer clear of the combined systems. These systems that include a DVD player and receiver in one unit usually do not have adequate digital inputs for other devices you own or will own in the future. Even the cheapest Receiver and Speaker combo would be ideal over a combo system. Secondly, spend what your room is worth not more. If you are outfitting a bedroom spend accordingly, a $2,000 system will never be properly utilized in a room that small. Lastly, utilize the store’s demo units. Bring your own audio CD or DVD that you are familiar with and let your ears decide what is best for you. Every one’s auditory perception is different.
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