Quote:
Originally posted by wrightie@Feb 12 2005, 02:28 PM
This guy obviuosly should not work in a stereo shop. Anyone who tells ya that it sounds better the other way is flat out wrong. when the box is facing in to the car the sound waves from the back of the box cancel out some from the front , hence not the best sound. trust me on this one I went through this one a few months ago.
Wrightie
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This is not always the case Wrightie. I will agree that the installer should not state one way as being better than another. After all, the only measure of your system is how you think of it. As for positioning, there are good points and bad about both. In most cases people will position the sub to fire at the rear. I prefer to avoid this due to enhanced rattling and more boomy sound to the music. If you have ever had a home system and placed the sub close to a wall you will find the same result. And so have any neighbors that may live over you. If you turn the sub toward the front of the car it seems to have less distortion. If you are using tens then I am going to imagine that you like tighter bass. This might be a option for you. What wrightie was refering to was phaze cancellation in a sound stage. It is possible for two speakers to cancell out and form a dead zone in your car. This tends to be more of a problem at lower frequencies (the wave lengths are wider and have a better chance of merging). As you add more speakers this will become more of a problem. I have had two occassions that this became a problem. The first was in our church. I had helped to setup a soundstage. We had a relatively small room that housed about fifty people. When the church quire hit lower notes the sound went dead in the center of the room. I had a choice to move all eight of the speakers, adjust the timing, or change the phaze of the speakers. Time adjustment is the best method if your hardware allows it. By putting a few miliseconds of delay on two speakers it fixed the problem entirely. My car (a Taurus) was a different story. I did not have time alignment and the front speakers were cancelling out some of my lower frequencies. Since the speakers were in the doors and 6.5's it would be very hard to move them. My only other choice was to change the phaze. By reversing the positive and negative of one speaker it placed it out of phaze from the other. This gave me back the lower frequencies that I lost, but altering phaze can cause minor distortions in your sound. These distortions are seldomly heard in subs but can be noticable in midrange speakers. In most cases I would try to avoid this if possible. In most cases a sub will not have a problem with front stage speakers. If you do encounter this place a crossover point between subs and speakers. There is no reason for the front speakers to reproduce frequencies that the sub is doing and vise versa.
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