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Curio's-AKG's "Brass"CK12 capsule: A quick look at it's history: The "Brass" CK12, must surely rank as one of the most famous capsules ever designed. First used in the legendary AKG C12 valve microphone, and then in the C12a/b valve (Nuvistor) microphones that followed.

AKG were to re-create/emulate the sound of the original CK12 capsule, in a new nylon version (2072-Z-0009), similar to the (2072-Z-0005) already in production. This new capsule was to be used in the "Gold Grill" version of the C414B-TL, to be known as the C414B-TLII .

Production of the 1000 and 2000/2100 series, together with the servicing of Calrec/Fi-Cord microphones, was taken over by an ex-employee, Keith Ming i.e. "Hebden Sound".

It is intended, that the RMB-2021 is to offer that "Warm and Plumy" sound, liked by so many musicians and engineers. So, a valve of suitable sonic quality and physical size i.e. ML-1955 is to be used. As is that found in the RV-14m, a direct replacement for the Telefunken VF14.

www.saturn-sound.com www.microphoneservices.com www.ashleystyles.co.uk ----- Products - Replacement Valve RV-14m [Specification] [Customer Feedback] The RV-14m valve, is the ideal replacement for the "Obsolete" Telefunken VF14m, as used in the famous Neumann U47 / U48 microphones. ...

What helps to make the 2072 Z 0009 capsule sound that much closer to the original "Brass" CK12 than the 2072 Z 0005 ? 1 - The 2072 Z 0009 uses a more complex, internal, acoustic resistive path to that of the 2072 Z 0005, being similar to that of the "Brass" CK12 capsule design.

The 19 A-19 Y2 microphone uses a selected miniature wire ended Nuvistor, that gives this microphone a drier sound with a slightly tizzy top end. Together with the high quality built-in matching transformer, you have a very useful studio microphone, sounding somewhat different to a standard 19 A-19.

So, in 1962, the Calder Valley Sound Recording company (C.V.S.R), produced their first commercial microphone i.e. the C41. Originally being called the type 4 condenser microphone.

The overall sound was amazing, and when listing to recordings made using simple microphone techniques, the depth of the stereo image was absolutely fantastic. This was especially true, on recordings using a single pair of microphones, using the "Middle and Side" technique.