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Multi-Way Conventional loudspeakers with crossovers

improvements parallel cap construction for crossover network
improvements parallel cap construction for crossover network
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Old 14th November 2017, 07:13 AM   #21
scottjoplin is offline scottjoplin  Wales
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The bypass cap is in parallel to another cap and they act as one with their capacitances adding, they don't act as two separate filters
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Old 14th November 2017, 09:10 AM   #22
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Certainly there are differences in capacitors but these differences are minor when it comes audio frequencies. There are far greater differences between drivers of the same make than the miniscule differences in capacitor types. Adding additional capacitance to a value by bypassing it will simply reduce the overall reactance and thus one might hear a change by reason of that.
Very small added values of capacitance make an insignificant change percentage wise, but if one is straining to hear a difference one may well hear a slight difference because of auto-suggestion at work. If it doesn't produce an obvious change why bother pursuing such insignificance. Life is too short for such nonsense.

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Old 14th November 2017, 12:03 PM   #23
454Casull is offline 454Casull  Canada
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You have ability to tune the capacitance with parallel caps, assuming a stereo setup. If you have 4 caps that are +/- 10% tolerance, they might be 0.92, .98, 1.02, 1.08 in value but when rolled appropriately you can get two equivalent caps of exactly 2.0 each.
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Old 14th November 2017, 11:50 PM   #24
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Quote:
Originally Posted by 454Casull View Post
You have ability to tune the capacitance with parallel caps, assuming a stereo setup. If you have 4 caps that are +/- 10% tolerance, they might be 0.92, .98, 1.02, 1.08 in value but when rolled appropriately you can get two equivalent caps of exactly 2.0 each.
No one is disputing that point, but it is somewhat easier to do with capacitance than it is with inductance and inductance with its inherent winding resistance is a greater variable with off-the-shelf inductors. Crossover overlaps are gradual at the crossover point so a more precise matching of components better than 5% is hardly a worthwhile pursuit, particularly when driver mismatching can be much higher than that.
If that is not enough, two identical loudspeakers in a stereo setup will sound differently anyway due to room acoustics and positioning variability.

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