RuudNL
Well-known member
I see that the Chinese 'friends' now have a 'KM184' in their range.
Does anyone happen to have experience with this?
Does anyone happen to have experience with this?
I wouldn't bet on that. Just bought couple of those mini U87's. There's a DC-DC converter board and an electret capsule inside.As far as I have seen there is an oscillator for the polarisation voltage, so apparently the capsule is not an electret type.
In the meantime I have had the opportunity to test a friend's 'Chinese' KM184.
Good news and bad news.
The microphone capsules are decent, I don't hear any 'peaks' or 'dips'.
(I have not had the opportunity to take measurements.)
Annoyingly, the electronics have a very high noise level, making the microphone as delivered basically unusable.
A missed opportunity in my opinion, because isn't the microphone capsule the most critical part of a microphone?
Is there any indication that all the results of that search are the same microphone, by the same company?Just look for 'KM184' on Ali...
What I have seen from the pictures the PCB is pretty crowded with lots of SMD components.
As far as I have seen there is an oscillator for the polarisation voltage, so apparently the capsule is not an electret type.
Near zero... (Very little space inside)Hmmm...what are the chances that a Bv.107 would fit in there?
Any chance you can snap couple of images of the capsule, rear preferably?Near zero... (Very little space inside)
I offered my friend to replace the original PCB with a Schoeps circuit.
Capsule polarisation voltage from the original PCB is -52 V. (Yes: minus!)
With the Schoeps circuit I can get a little over 42 V, that is less than 2 dB difference in output.
And a LOT less noise!
I already returned the microphones to the owner, but I will try to take some pictures the next time I meet him.Any chance you can snap couple of images of the capsule, rear preferably?
Are you sure it won't fit in, @RuudNL? AFAIK, the tube diameter of the KM184 is 22mm. Assuming the Chinese made a 1:1 clone, the fake one should have the same diameter. Most, if not all 22mm SDCs, e.g. the Takstars and MXL603S, fit the BV107 clones, such as the Cinemag CM-5722, AMI or ASTDS T8 and 3U GZT-84.Near zero... (Very little space inside)
I offered my friend to replace the original PCB with a Schoeps circuit.
Capsule polarisation voltage from the original PCB is -52 V. (Yes: minus!)
With the Schoeps circuit I can get a little over 42 V, that is less than 2 dB difference in output.
And a LOT less noise!
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