Help id capsule

[Greenie]

isis it possible to id this capsule? K67 from microphone parts?

 

[LevinGuitar]

Looks like WGT k47

 

[Icantthinkofaname]

Looks like a K47 to me. Probably one of the K47s from the same factory as the RK47.

 

[Greenie]

I have this in a Cad GXL 3000 that I didn't remeber I had. But the capsule is bought from Microphone parts for sure, maybe 15 years ago. When a look at the K67 at their site it has the white surrounding. Might be a RK87?

 

[kingkorg]

It is at least of the same origin as the MP k47.

 

[Icantthinkofaname]

I have this in a Cad GXL 3000 that I didn't remeber I had. But the capsule is bought from Microphone parts for sure, maybe 15 years ago. When a look at the K67 at their site it has the white surrounding. Might be a RK87?

Nope, that's a K47. You can tell because the backplate holes don't exceed the edge of the diaphragm.

 

[Greenie]

Ok, good. I am starting a U47 build at the moment, so I could possibly try it there?

 

[Icantthinkofaname]

Ok, good. I am starting a U47 build at the monent, so I could possibly try it there?

If you like the sound of it you could use it. It's sort of hard to comment on what to use in one because it's a tube mic hasn't been made in decades so they all sound different. If you want to believe the manual the U47's cardioid response should be a smooth 3-4 dB from 2K-10K, then rolling off at what looks like 12K. The RK47 is something like +4 or 5 dB at 5K, but it doesn't have the boost in the after that (at least from the measurements I've seen). Personally I don't like the way the RK47 sounds, I don't know how to describe it, but I think it has a sort of muddy boxy midrange honk and I find it always sounds like there's been a ton of processing like when you see people use programs like Voicemeter to "make a $25 microphone sound like a $1000 microphone" or whatever they say on YouTube. I think it's a downgrade in a lot of mods, and I cringe when I see a bright but solid microphone get "upgraded" with an RK47 (like the edge terminated Rode mics or some of the Blue mics).

 

[LevinGuitar]

I still have some K47 from WGT I have never found a place where to use them for years, they sound nothing like real K47/49

 

[Greenie]

Quote

If you like the sound of it you could use it. It's sort of hard to comment on what to use in one because it's a tube mic hasn't been made in decades so they all sound different. If you want to believe the manual the U47's cardioid response should be a smooth 3-4 dB from 2K-10K, then rolling off at what looks like 12K. The RK47 is something like +4 or 5 dB at 5K, but it doesn't have the boost in the after that (at least from the measurements I've seen). Personally I don't like the way the RK47 sounds, I don't know how to describe it, but I think it has a sort of muddy boxy midrange honk and I find it always sounds like there's been a ton of processing like when you see people use programs like Voicemeter to "make a $25 microphone sound like a $1000 microphone" or whatever they say on YouTube. I think it's a downgrade in a lot of mods, and I cringe when I see a bright but solid microphone get "upgraded" with an RK47 (like the edge terminated Rode mics or some of the Blue mics).

I do apreciate that. I bought a U47 type mic from Dave Pearman in ca 2005. It sounded great, but at the time I was a kind of "it must be original"- nerd, so I sourced an original Bv8 transformer, original Neumann capsule and 3 VF14 tubes, and I must say it was much, much more difficult to source items in i those days. I came a cross a body from Wagner. Then I sent it all to the master Peter Drefahl in Germany to assemble it. But in the end, in recording, the mic didn't nessarily sound better then other, cheaper mics. So I find it very difficult to decide what tube/capsule/parts should be in a mic. It depends on the audio you put into it. And also the ear that listens?

 

[Icantthinkofaname]

I still have some K47 from WGT I have never found a place where to use them for years, they sound nothing like real K47/49

Yeah, I'm in the same boat. I find because there's such a boost and then a sharp decline they sound kind of lo-fi. I'm glad I only paid $40 for it. It's hard for me to look at any of those capsules when 3U Audio and Takstar exist. I think the K67 and Chinese edge terminated capsules from that factory can be decent, but the companies I mentioned just seem to beat them.

 

[Icantthinkofaname]

@Greenie You can ask different manufacturers about their K47s and M7s, but I will say the really publicly sold ones are not typically accurate. You have the RK47 which hypes the mids a huge amount which sounds super boxy, and you have the Advanced Audio one which, according to their CM47 measurement, hypes 11K by 4-5 dB but lacks the earlier boost. Neumann's own marketing material suggests the K47 should be boosted by 4 dB at 3K and 10K with a dip at like 5/7K (which is where the RK47 boosts!), the severity of which seems to depend on pattern. I'd ask Ben at Beesneez what his K47 and M7s are like. You can e-mail Guosheng at [email protected] and ask what his M7s and K47s are like too.