I laid out my crossover on a 5" x 7" board and the sketch is roughly to scale. Is this an acceptable layout? I guess I could put the middle-ish inductor on the opposite corner if necessary, but the layout is intuitive to me. Also, as far as inductor wiring, does it matter whether one connects to the inner or outer lead? I was planning on connecting the outer lead on the driver side, sound ok?
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You are doing the right thing by spacing the inductors out and trying to have them at right angles to each other to avoid magnetic interaction.
Doesn't matter whether you use the inside or outside lead on an inductor.
Doesn't matter whether you use the inside or outside lead on an inductor.
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The two that are laying down, is that preferable to standing them up? Would still be at right angles to the others.
Looks good. Lying down is better mechanically for the coils. Keep as much air around the resistors as possible, and stand them off the board by at least their thickness.
Just so you know, as long as there is at least 2 inches of distance between the coils' perimeters (the perimeters of the coiled wire, not the spool), they can all be laid down flat without having to stand any of them up at right angles. The fact that you stood a couple up for good measure is fine, but not truly necessary.
Paul
Paul
Yes, I wouldn't fuss over it. Have the heavier coils horizontal and the lighter coils vertical if you like.
The larger coil on the lower left hand is going to be an iron core. This is going into a small box and will be fairly close to the woofer. As far as orientation of the layout, should I strive to keep the iron core inductor (or other ones for that matter) as far from the woofer as possible or does it matter?
Place your crossover as far as possible from all unshielded loudspeaker magnets.
Don't fret too much though, as magnetism obeys the inverse square law and falls off rapidly with distance. e.g. doubling the distance will reduce the magnetism to one quarter of the strength, three times the distance results in one ninth of the strength, and so on.
P.S. Regarding orientation of coils - remember that there are three orientations possible i.e. in the x, y and z axes. You have so far used ony two of these orientations.
Don't fret too much though, as magnetism obeys the inverse square law and falls off rapidly with distance. e.g. doubling the distance will reduce the magnetism to one quarter of the strength, three times the distance results in one ninth of the strength, and so on.
P.S. Regarding orientation of coils - remember that there are three orientations possible i.e. in the x, y and z axes. You have so far used ony two of these orientations.
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