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There's an old theory a lot of audio engineers still practice. In a two design the low pass drivers are in phase and high pass out of phase. In a three way design, woofer in phase, mids out of phase, tweeters back in phase.
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^ is there a particular reason for this?
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Yes but I don't remember what it was. Sounded logical so I stuck to it in the custom speakers I built.
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I think it might have to do with sound cancellation of the frequencies that overlap between the different drivers.
At least that's my best uneducated guess..."Make a man a fire and he'll be warm for a day. Light
a man on fire and he'll be warm for the rest of his life." -
I think I see what you're putting down, but that would also indicate that the XO points of each driver are the same, causing a theoretical 3dB bump at that frequency, where if you were to spread the XO points apart say a 1/4 octave on a 12dB/oct slope, the intersection would happen at 3dB down for each speaker thus keeping the response flat between the 2 without having to reverse polarity and potentially causing dips within the harmonics for each speaker.
At least that's what I recall of the XO theory I once knew. -
I think I see what you're putting down, but that would also indicate that the XO points of each driver are the same, causing a theoretical 3dB bump at that frequency, where if you were to spread the XO points apart say a 1/4 octave on a 12dB/oct slope, the intersection would happen at 3dB down for each speaker thus keeping the response flat between the 2 without having to reverse polarity and potentially causing dips within the harmonics for each speaker.
At least that's what I recall of the XO theory I once knew.
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