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Difference between the U47 M7 and U46 K47 capsules (songs recorded on each?)
Old 17th June 2020
Gear Maniac

Difference between the U47 M7 and U46 K47 capsules (songs recorded on each?)

Hi Everyone,

Neumann’s original U47 changed from using the M7 capsule to the K47 capsule, sometime in 1958.

I’m trying to understand what was the difference in tone of the U47 M7 capsule compared to the U47 K47 capsule.

Are there HQ audio samples online of each of those vintage U47 capsules?

What are the iconic recordings that used each council?

Thanks for your input.
Old 17th June 2020
M7 vs k47 capsule

google will have some of the answers..

I’m sure there are audio comparisons online. Whether or how representative they are may be a different story. Most, or all original M7 capsules are in an advanced state of decomposition and well out of spec, with the freshest batch of gefell m7’s using the original formulation dating back to 2006 I believe.

I’m only relating from memory what I’ve learned round these parts and Klaus’s forum at psw
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