commanderberti
Well-known member
What are your experiences with what the last dB of noise improvement brings? PSU filters, special capacitors, transformers, which tubes... I'm grateful for all your tips!! Thanks
thanks, what tubes ecc83 can you recommendA good tube! (The quality of tubes nowadays isn't what it used to be...)
which tube(circurit) do you prefer?..basically, the ECC83 is not suitable as capacitor microphone front end, grid leak and miller capacitance are prohibitive..
The reason the chinese started using it for mics was most probably just that they could get very-cheap "only-one-half-working" ecc83's, rejects from current production (check the original tube in there - most of the time the "other half" of the mounted dual triode is defective).
/Jakob E.
How quiet do you really need a tube to be? I personally use tube mics for their coloration which starts to show at high-ish SPL. If you use a tube mic at low SPL where noise is starting to play a role you don't really get much of the tube goodness. My approach is FET for low noise, Tube for louder stuff where these mics really shine. Unless you record something with crazy dynamic range. I feel when people talk about tube mics noise as an issue it's where it becomes really obvious, where you clearly hear the noise in the recording. Couple of db in noise floor difference shouldn't be a deal breaker.What are your experiences with what the last dB of noise improvement brings? PSU filters, special capacitors, transformers, which tubes... I'm grateful for all your tips!! Thanks
A good example of a nice bit of extra noise is the key click and generator 'leakage' on a Hammond organ....I am also a synth guy, and we use noise as an enhancement. What is a Juno 6 without it's noisy chorus? There's something nice about little bit of noise, but that's just me.
I absolutely concur !!!Personally I have good experiences with the EH EF86 and the Russian 6SB6-V.
(I even replaced the original tube in my Neumann U67 reissue with an EH EF86, resulting in a lower noise floor)
Microtech - Gefell (who IMHO is the REAL contemporary Neumann)
The flagship Microtech Gefell CMV 563/M 7S tube microphone uses the EF86 … as do others (see the complete list from the @Marik post in this thread) including the M 92.1S and M 990, which wires the pentode as a triode …Gefell used EC92 and such, Neumann used EF86 (u67)
.. Gyraf G7 was EF86 also..
Many of Georg Neumann’s descendants returned to work alongside members of the Kuhnast family … who were some of Neumann/Gefell’s best design engineers … when Georg Neumann GmbH was purchased by Sennheiser Electronic GmbH in the early 90’s … largely voiding the direct influence of the Neumann family and their extended family of historical technical advisors on Neumann microphones …
Hey Jeff, don't get me wrong, Microtech Gefell (GmbH) builds very good microphones and of course has a Neumann heritage. Unfortunately, the quality has not been consistently high over the years. Like many other GDR companies, VEB Microtech Gefell suffered from the (absurd) political system, lack of materials and the economic restrictions imposed by the Iron Curtain. Today, however, they are once again producing high-quality microphones, no doubt.
Is there any real evidence for the statement:"Many of Georg Neumann’s descendants returned to work alongside members of the Kuhnast family … who were some of Neumann/Gefell’s best design engineers … when Georg Neumann GmbH was purchased by Sennheiser Electronic GmbH in the early 90’s … largely voiding the direct influence of the Neumann family and their extended family of historical technical advisors on Neumann microphones …"?
This is the first time I have heard that "many" Neumann developers and specialists moved to Gefell, a town of just over 2000 inhabitants, from Berlin after the fall of the Wall. They would certainly have been noticed. Have you ever been to Gefell?
I'm very interested in the historical development of German (east and west) industrial history with a focus on electronics, optics and broadcast technology and enjoy researching on this topic.
We can do a source comparison, maybe I've overlooked your new information, but I'm not actually aware of it.
Of course, I don't know everything there is to know about this topic and am happy to receive any new input. But I think the statement"Microtech - Gefell (who IMHO is the REAL contemporary Neumann)" is misleading, as there are two independent brands. How can Microtech Gefell be the real Neumann after all this time? Neumann is Neumann and Microtech Gefell is now Microtech Gefell. I don't understand where this strange transfiguration of reality comes from? Nobody in Gefell would claim that they are the real Neumann. Why should they? They are proud of their work, brand and their origins!
Cheers
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