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More on speakers It may be great to have multichannel sound, but it not be mandatory. You may wish to remain with conventional stereo sound, or your room may not be able to handle multichannel speakers. The fact is that, even a modest pair of bookshelf speakers, can provide a fantastic sound experience . Smaller speakers sound best with 2.1 channel set-up, where you have a left and a right speaker, and a sub-woofer. A few stereo receivers have a sub-woofer, to accommodate the configuration. Even to untrained ears, there may be a perceptible difference, when the speaker system is poorly arranged. The interaction between the speaker and the room, is just as important as the room itself. There may be areas of the room where the bass sound is cancelled and areas where it is reinforced, and these areas can be close together. Moving the speaker or the couch, a foot or two in either direction, can have a major impact on the bass performance. The fundamentals of speaker placement also apply in multi-channel set-up. The top priority in speaker placement, is to achieve symmetry in the imaging. The left and the right speakers should be equidistant from the listening position and the rear walls, and even from the side walls if possible. Do not leave this to chance, and it should be as accurate as possible, because a difference of less than half of an inch, may be audible, with higher end systems. The speakers should be positioned as mirror images of each other. Placing the speakers too far from each other, creates a hole in the middle, while placing them too close together causes the imaging to suffer. A good rule of thumb to follow is to divide the wall behind the speakers into thirds and place the speakers at the one-third and two-thirds points, and then move them out at equal distances from the wall into the room. It may take some testing and experimentation to find the exact locations and some accommodation may be necessary. You should also consider the room's surfaces and furnishings. If one speaker is next to bare wall and the other is next to heavy drapes, the difference in how the materials reflect and absorb the sound, will cause the two speakers to sound different. Using surround speakers As an Home Theater Installation enthusiast, you have a wide variety of configurations from which to choose. From 5.1-channel set-up to 6.1 or 7.1 -channel capability or even 7.2 , which allows the use of two subwoofers. You can also use the Dolby Pro Logic IIz for heightened Surround Sound Installation, with sound emanating from the above, as well as around the listener. It is crucial that you set up the speakers symmetrically. The center speaker should be slightly behind the left and right front speaker, and should be no more than 2 feet above or below the tweeters of the left and right speakers. Some manufacturers recommend placing the three front speakers in an arc, with all three equidistant from the listener. The surround speakers should be placed to either the side of the listener, and slightly to the rear of the room. They should be mounted on walls or placed on stands slightly above ear level. Surround speakers are meant to create diffuse, ambient sound to heighten the immersive sound experience.

They employ a dipole or bipole design that emits sound from both the front and rear of the cabinet, and should placed with the drivers facing forward and backward. For more information:

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The surround speakers should be placed to either the side of the listener, and slightly to the rear of the room. They should be mounted on w...

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