Home Theater Setup (Surround Sound Speaker Setup)

One common question is if fancy cable makes any difference. I must state here that many persons consider the very subject to be so much snake-oil. I personally believe that I can hear some differences, depending on the quality of the associated system. In other words, any hearable differences in cable will be more noticeable in a system with more resolution. Also consider that many listeners not selling cable claim to hear a difference. Consider any double blind tests carefully. I usually can pick holes in the logic behind most of these tests, and point out factors not considered. One perfect example was an amplifier test (by a major audio magazine) that level matched the amps, did a double blind test, and asserted the amps sounded identical, so they recommended that everyone buy the cheaper amp. Here’s the rub: Under their exact conditions, which are not normal listening conditions, the amps sounded the same. Consider this unmentioned idea: The cheaper amp had less power output than the other, and under normal listening conditions, say with loud rock music, and inefficient or difficult to drive speakers would have pooped out before reaching satisfying listening levels, not to mention clipping and distorting from overdriving the amp. One problem with the double blind tests is, in order to be accurate, they have to control every factor in the universe that could affect the results, even unknown factors. The other is, in order to compare everything on an even playing field, they purposely diminish or nullify the differences, then triumphantly proclaim they are all the same. The perfect example from above is level matching at a volume level that does not stress the more easily stressed amp.

Polarity or Phasing of your speakers is very important. This means finding the wire with a stripe or writing on one side, and connecting that wire to either the + (red) or -(black) on the amplifier and the speaker. It does not matter whether the stripe on the wire connects to plus or minus, as long as it is the same at both ends, and on all speakers. I always connect the plus to the stripe, just to be consistent. If you get this wrong you will lose almost all your bass response, and voices will float around instead of being centered when they should be.

Home Speaker Placement

Ideal placement for best sound is going to vary with the type of speakers you have, but we can supply some good generalities. Obviously, for a surround system, you have some built in limitations. The center channel needs to go above or below center of your television, (or perhaps centered behind a projection screen) and the left and right front need to go to the left and right front. So on for the rest of the speakers. It should be added at this point that for surround sound placement the ideal is all 3 front speakers an equal distance from the listener. This actually places the front speakers on an arc. It is generally good to put rear surrounds a little higher than ear level so that all listeners get a better chance to hear all the speakers. Leaving aside the obvious details of surround sound, here is how to improve the sound of your system for free.