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Author Topic: Matched Capsules?  (Read 2179 times)

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Online tgakidis

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Matched Capsules?
« on: January 09, 2009, 01:39:42 AM »
How close do caps/mics need to be to be considered "Matched"?  (1db or less?)
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Offline bhtoque

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Re: Matched Capsules?
« Reply #1 on: January 09, 2009, 02:04:08 AM »
Quote from: tgakidis on January 09, 2009, 01:39:42 AM
How close do caps/mics need to be to be considered "Matched"?  (1db or less?)

It's also important to have a matched frequency response, not just close sensitivity.

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Online tgakidis

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Re: Matched Capsules?
« Reply #2 on: January 09, 2009, 02:09:22 AM »
Quote from: bhtoque on January 09, 2009, 02:04:08 AM
Quote from: tgakidis on January 09, 2009, 01:39:42 AM
How close do caps/mics need to be to be considered "Matched"?  (1db or less?)

It's also important to have a matched frequency response, not just close sensitivity.

JAson



So how do you test that?  Sesitivity is easy to check.
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GAKables: Custom XLR, Digi & Batt Cables http://taperssection.com/index.php?topic=133186.0

Mics:
Schoeps: CMC6 x 4, CMC1K x 2, KC 5G x 2, MK4,MK4V,MK41,MK21,MK22,MK8 x 2
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Telefunken: TF-11 x 2, ELA M 260 x 4, M960FS x 2, TK60,TK61,TK62 x 2, M60,TK60 x2
AKG: c426b, AKG c34, nBob Actives>PFA x4, CK61,CK63,CK8 x 2
AT853 4.7k Mod (Card,Sub)
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Sonosax SX-AD8+ / Sonosax SX-M2D2 / Sonosax SX-M2 / Lunatec V3
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Offline John Willett

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Re: Matched Capsules?
« Reply #3 on: January 09, 2009, 09:25:18 AM »
Quote from: tgakidis on January 09, 2009, 01:39:42 AM
How close do caps/mics need to be to be considered "Matched"?  (1db or less?)

Sennheiser MKH 8000 series - and I think Schoeps and DPA as well are matched to within 1dB.

The MKH 8000 are within 1dB on both frequency response and sensitivity.
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Offline John Willett

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Re: Matched Capsules?
« Reply #4 on: January 09, 2009, 09:27:18 AM »
Quote from: tgakidis on January 09, 2009, 02:09:22 AM
Quote from: bhtoque on January 09, 2009, 02:04:08 AM
Quote from: tgakidis on January 09, 2009, 01:39:42 AM
How close do caps/mics need to be to be considered "Matched"?  (1db or less?)

It's also important to have a matched frequency response, not just close sensitivity.


So how do you test that?  Sesitivity is easy to check.

The traditional method was to hold the frequency responce plots up to the light, one on top of the other, and choose the two that were the same.

Probably do the same thing by computer now, after the plots have been made.
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