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Old 12th November 2015, 01:27 AM   #1
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Default Crossover question -- Series caps / Parallel caps

I am restoring a 1991 loudspeaker kit, and the original schematic is long gone.

One part of the tweeter crossover has a small value capacitor IN SERIES before a larger value capacitor.

I know that often -- to improve speed & transparency -- a smaller value cap is put IN PARALLEL with the larger value cap.

So, can you think of a reason why 2 SERIES caps would be in a tweeter X-over ? Or should the correct path be in PARALLEL.

Yes, I know --- not much info to go on.
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Old 12th November 2015, 01:55 AM   #2
Enzo is offline Enzo  United States
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I don't know what you have, but in pro audio, I have encountered "entry level" tweeters that came with a cap attached. I guess it was their guarantee no one would put full range through it. And if this speaker was more entry level, perhaps they took such a tweeter and simply connected it to their crossover as is, without removing the cap that came with it.
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Old 12th November 2015, 03:11 AM   #3
rayma is online now rayma  United States
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Quote:
Originally Posted by stephend1714 View Post
One part of the tweeter crossover has a small value capacitor IN SERIES before a larger value capacitor.
Is there nothing else connected to the tweeter or those capacitors?
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Old 12th November 2015, 03:55 AM   #4
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LET ME BE MUCH MORE SPECIFIC --- WITH THE SPEAKER / DRIVERS I AM WORKING ON.
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Old 12th November 2015, 04:07 AM   #5
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OOOPS !!! I hit the post button too soon.

Let me finish this : the X-over I need as a schematic is for Joe D'Appolito's MTM ARIA-5s, in kit build, from around 1990. Elliot Zalyt at Zalytron sold them with the standard Focal inverted dome.

Focal woofers 5K013L [Kevlar] but I got the upgrade ACCUTON C-26 ceramic hard dome. I NEED A X-OVER SCHEMATIC FOR THE ACCUTON TWEET as part of the total speaker wiring.
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Old 12th November 2015, 10:56 AM   #6
DF96 is offline DF96  England
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Caps in filters may be arranged in series or parallel to obtain a value which is not available (at a reasonable cost) as one component. That is the usual engineering reason.
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Old 12th November 2015, 03:17 PM   #7
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Original poster here ---- I found the answer to my X-over schematic question. Thanks to the responders. Bye . . .
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