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Author Topic: Choose The Better Side Of Your Capsule!  (Read 768 times)

klaus

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Choose The Better Side Of Your Capsule!
« on: June 24, 2020, 01:33:09 PM »

A few words about the relevance of testing both front and rear sides of a dual-diaphragm, large condenser capsule, to select the better-sounding one for the front.

1. Even the best-made capsules with the tightest possible manufacturing tolerances have an audible difference between front and rear. But to my knowledge no one, not even Neumann, selects for front side preference.

2. In the best-made capsules, the audible differences between the sides will be small enough to recognize both sides as having similar timbres and personalities. But the expression of that character will be more or less strong: one side will always be more authoritative than the other in expressing that character.

3. Selecting the strongest side as front side can make a bigger difference in liking or not liking a microphone than all other features of that microphone combined.

4. Trust your ears: you will be able to tell the difference. Even if the difference is small, you can be confident in your choice, once you tried both sides.
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Klaus Heyne
German Masterworks®
www.GermanMasterworks.com

reedblack

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Re: Choose The Better Side Of Your Capsule!
« Reply #1 on: June 25, 2020, 04:44:19 PM »

Hello Klaus, I’m sure this is covered elsewhere but I’m not able to find it.  What’s the easiest and safest way to flip the capsule on a U67, or a U47?
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Reed Black
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Vinegar Hill Sound
Brooklyn, NY

klaus

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Re: Choose The Better Side Of Your Capsule!
« Reply #2 on: June 25, 2020, 06:19:42 PM »

There are no easy ways per se. You need to have a calm hand and some fine-motor skills to unscrew the capsule terminations, unscrew the capsule from its mount and reverse- install it.

A preliminary step, to determine whether capsule reversal is even called for, is a bit easier, but still requires a very steady hand and some refined screwdriver skills:
you can unscrew the center lead out going to the front diaphragm and install that termination on the rear diaphragm, pushing its wire to the side, for the moment.
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Klaus Heyne
German Masterworks®
www.GermanMasterworks.com

RuudNL

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Re: Choose The Better Side Of Your Capsule!
« Reply #3 on: June 26, 2020, 05:02:07 AM »

Isn't it easier (and safer!) to just unsolder the capsule wires and reverse them?
Cover the capsule with a plastic bag while soldering to avoid splashes of solder flux on the membrane(s).
I personally think it is a pretty risky operation to unscrew the center wires of the capsule!
(Slipping screwdriver...)
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