Rep Power: 317

well, thats what its called, test tone generator: http://www.softandco.com/Audio/MP3/c...Generator.html

its a program that produces test tones. i installed it on my laptop, and then connected my laptop to my HU via aux input, and voila, test tones to test out my system. i dont know how accurate it is, but i noticed that my crossovers on my amps weren't set right, because between 90Hz and 120Hz, i heard nothing, there was a gap, so i adjusted my Xovers and now, i dont hear gaps between 10Hz and 10,000Hz (well, i dont hear anything from 10Hz to 20Hz, but thats probably a sub/amp lmitation).
i just thought i'd give you guys a heads up. i was trying to find a downloadable test tone cd, but i couldn't find one (and i refuse to use kazaa to get one). its cool, check it out, well worth the same download.

 
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sigjenny works pretty well, but my fav is cooledit pro, it generates them and records them for ya.

 
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that's because 20Hz is not audible to humans

 
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sit in my car playing 17 Hz and tell me its not audible

 
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maybe i can't hear that low? i think i'm going deaf anyways.

 
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Even if you couldnt' hear them, you'd probably be able to feel that

 
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i guess its something in my system that wont allow me to play that low, because i dont remember feeling anything either, 20Hz+ is where it was all at.

 
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http://www.sfu.ca/sca/Manuals/ZAAPf/r/range.html


proof

 
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dont believe everything that you read. also, remember that a lot of cd players only have a range from 20-20,000 Hz
i know mine says 5 - 20000 hz