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In Reply to: Re: I think I answered my own question... posted by stevenk on November 18, 2006 at 09:08:56:
Your goal is to have the bass and treble in correct (+) polarity and the mid in reverse (-) polarity. IME it is better to have the bass in + polarity which is what you also found. If I understand you correctly at this point the mid and treble are in reverse polarity which is what you want (mid + and treble -). However, you may find it advantageous now to reverse the speaker connection to the mid-treble thus making the mid (-) and the treble (+). The result will be (+), (-), (+) which is where you were before all the swapping.It is important that the mid and treble have reverse polarity because the mid-treble crossover (low and high pass) are 2nd order. The low pass and high pass 2nd order filters are 180 degrees out-of-phase and thus will cancel creating a big sonic hole at crossover point. By wiring them with reverse polarity, you end up with the phase angle being zero - this is called phase aligned or phase corrected.
This polarity stuff gives me a headache.
I may be an egoist but at least I don't talk about other people.
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Follow Ups
- Re: I think I answered my own question... - neolith 12:35:12 11/18/06 (1)
- Re: I think I answered my own question... - stevenk 13:48:11 11/18/06 (0)
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