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<blockquote data-quote="The Camry" data-source="post: 8430095" data-attributes="member: 657974"><p>So two questions. 1. I understand that having a -12 slope gives you a 180 degree phase. Now I don't understand why flipping your speakers polarity/reversing phase digitally is required. Is the phase only flipped from where the x-over starts? Like say normal phase at 100hz then -12db lpf slope at 101hz. Does the 180 phase change only start at 101hz and up or does it effect the whole freq spectrum the driver plays. ie: 100hz and down as well as up.</p><p></p><p>2. If an amp has a -12 db crossover. Does it automatically flip its drivers polarity internally to keep them having a "normal" phase</p><p></p><p>and what happens when you have more than one crossover on a driver. like say its HP at 3k at -12 db and then HP again at 4k with..idk -6db. Does it become an -18 or how all does that work?</p></blockquote><p></p>
[QUOTE="The Camry, post: 8430095, member: 657974"] So two questions. 1. I understand that having a -12 slope gives you a 180 degree phase. Now I don't understand why flipping your speakers polarity/reversing phase digitally is required. Is the phase only flipped from where the x-over starts? Like say normal phase at 100hz then -12db lpf slope at 101hz. Does the 180 phase change only start at 101hz and up or does it effect the whole freq spectrum the driver plays. ie: 100hz and down as well as up. 2. If an amp has a -12 db crossover. Does it automatically flip its drivers polarity internally to keep them having a "normal" phase and what happens when you have more than one crossover on a driver. like say its HP at 3k at -12 db and then HP again at 4k with..idk -6db. Does it become an -18 or how all does that work? [/QUOTE]
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