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OmnidirectionalCardioidBidirectionalNeumann CMV-563

Detachable-Capsule Tube Condenser Microphone

The Kondensator-Mikrofon CMV 563 is a tube condenser bottle microphone manufactured by the division of the Georg Neumann company in Gefell, East Germany, which has since been renamed Microtech Gefell. The mic was made from 1956-1971, then reintroduced in 2011 (see the new MTG CMV563).

To be clear, although these mics are branded “Neumann,” they were not made by the company known today as Neumann. The present-day Neumann company refers all CMV-563 inquiries to MTG.

The CMV-563 mic was conceived as a tube preamplifier that could be used with any of a variety of interchangeable capsule heads: the M 55 (omni), M 7 (cardioid), M 8 (figure eight) and M 9 (omni) as well as M7S, M8S and M9S with short handles. The M7, M8, and M9 attached via a long “bayonet” mount. The “S” versions screwed directly onto the mic body.

Several contemporary microphone companies have copied the CMV-563’s bayonet mount, and have released aftermarket capsules that are compatible with the older mics. See below for a listing of Blue and Violet capsules for this bottle mic. (Flea makes compatible capsules as well; we will add them to the listing soon.)

With the PVC-diaphragm M7 capsule, the 563 is said to sound very much like an original U-47. That said, 50-year-old PVC capsules are unlikely to sound much like they did when new.

Neumann/Gefell CMV-563 SchematicThe 563’s circuit design was also found in the Gefell UM57, and is said to be similar to the M92.1/UM92.1/UM75, although the latter three incorporate EMI/RFI rejection circuitry that is said to “choke” the sound of the microphone. (See the two schematic views on this page.)

The tube was an EC92 triode.

CMV-563s turn up on Ebay frequently, with prices ranging from $1000-$3000 depending on quality and the number of capsules included. The consensus on the forums is that a good 563 is a great microphone, whereas a poor one is a poor microphone, and that it’s hard to tell in advance which is being sold.

Further, this mic seems to more commonly be refurbished/repaired with newer parts than is the case with other vintage models (in which originality seems a requirement for maintaining the desired sound).

Oliver Archut

[T]he historic Gefell [transformers] were made in Gefell due to the fact that no real audio lamination [was] available in former East Germany… sometimes they used whatever they could get their hands on. Same with most Gefell parts during the time… The stuff Gefell used is home-made and barely works.

What Gefell made during the Soviet occupied times is 1.6 tons of microphones a month (to quote Mr. Kuehnast) and quality was not the goal, quantity [was]…

[M]ost Gefell [microphones] that were made during the GDR times are plain old garbage due to material problems… If someone wants to rebuild those mics, that is a pretty good job if you can do it yourself, but please see it in relation… to what it [costs] and what you get.

But in the end a rebuild CMV is a great mic to have.

In my experience everything needs to be replaced, resistors, capacitors as well as a new high quality (tube) mic cable, and a capsule rebuild to get a mic that can stand up to any west german Neumann counterparts, and do not forget the PSU.

The CMV prefix in the model name comes from the phrase Condensator-Mikrofon-Verstärker, which means “condenser microphone amplifier.”

As of early 2009, Microtech Gefell continues to offer repair services for CMV-583 mics, including reskinning of the PVC capsules; for a repair estimate, ship the mic to:

Microtech Gefell GmbH
Att: Michael Militzer
Georg-Neumann-Platz
D-07926 Gefell
Germany
(Mic photo courtesy Bill Bradley / micshop.com)

The Neumann CMV-563 is also known as: CMV563.

Specifications

Compatible Capsules
Blue Microphones B0 Large Diaphragm BottlecapCardioid Blue Microphones B0 Large Diaphragm Bottlecap
24mm large diaphragm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 20-20,000 Hz
MSRP: $649 | Still In Production
Blue Microphones B1 Small Diaphragm BottlecapCardioid Blue Microphones B1 Small Diaphragm Bottlecap
18mm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 35 - 20,000 Hz
MSRP: $649 | Still In Production
Blue Microphones B2 Figure-of-8 Lg Diaphragm BottlecapBidirectional Blue Microphones B2 Figure-of-8 Lg Diaphragm Bottlecap
24mm large diaphragm Bidirectional capsule
Sensitivity: mV/Pa
Freq. Resp.: 35 - 20,000 Hz
MSRP: $649.95 | Still In Production
Blue Microphones B3 Cardioid Mid-Size Diaphragm BottlecapCardioid Blue Microphones B3 Cardioid Mid-Size Diaphragm Bottlecap
22mm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $649 | Still In Production
Blue Microphones B4 Perspex Sphere Pressure Omni Small Diaphragm BottlecapOmnidirectional Blue Microphones B4 Perspex Sphere Pressure Omni Small Diaphragm Bottlecap
18mm Omnidirectional capsule
Sensitivity: mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $849 | Still In Production
Blue Microphones B5 Pressure Omni Large Diaphragm BottlecapOmnidirectional Blue Microphones B5 Pressure Omni Large Diaphragm Bottlecap
25mm large diaphragm Omnidirectional capsule
Sensitivity: mV/Pa
Freq. Resp.: 35 - 20,000 Hz
MSRP: $649 | Still In Production
Blue Microphones B6 Cardioid Large Diaphragm Dual Backplate BottlecapCardioid Blue Microphones B6 Cardioid Large Diaphragm Dual Backplate Bottlecap
24mm large diaphragm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 20 - 18,000 Hz
MSRP: $649.95 | Still In Production
Blue Microphones B7 Cardioid Large Diaphragm Single Backplate BottlecapCardioid Blue Microphones B7 Cardioid Large Diaphragm Single Backplate Bottlecap
24mm large diaphragm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $649.95 | Still In Production
Neumann M 7Cardioid Neumann M 7
large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 40 - 16,000 Hz
MSRP: n/a | discontinued
Neumann M 7 SCardioid Neumann M 7 S
large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 40 - 16,000 Hz
MSRP: n/a | discontinued
Neumann M 8Bidirectional Neumann M 8
large diaphragm Bidirectional capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 40 - 8,000 Hz
MSRP: n/a | discontinued
Neumann M 8 SBidirectional Neumann M 8 S
large diaphragm Bidirectional capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 40 - 8,000 Hz
MSRP: n/a | discontinued
Neumann M 9Omnidirectional Neumann M 9
26mm large diaphragm Omnidirectional capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 30 - 18,000 Hz
MSRP: n/a | discontinued
Neumann M 9 SOmnidirectional Neumann M 9 S
large diaphragm Omnidirectional capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 30 - 18,000 Hz
MSRP: n/a | discontinued
Violet Design Ltd. VIN12Cardioid Violet Design Ltd. VIN12
26mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN26Cardioid Violet Design Ltd. VIN26
26mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN27Cardioid Violet Design Ltd. VIN27
27mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 22 - 20,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN44Bidirectional Violet Design Ltd. VIN44
26mm large diaphragm Bidirectional capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 28 - 10,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN47Cardioid Violet Design Ltd. VIN47
26mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1068 | Still In Production
Violet Design Ltd. VIN55Omnidirectional Violet Design Ltd. VIN55
26mm large diaphragm Omnidirectional capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 24 - 20,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN67Cardioid Violet Design Ltd. VIN67
26mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1068 | Still In Production
Violet Design Ltd. VIN89Cardioid Violet Design Ltd. VIN89
22mm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1068 | Still In Production
Pads & Filters Impedance SPL/Noise
n/a 200 Ohms (Low)
Weight Length Max Diameter Interface(s)
400g (14.11oz) 95mm (3.74'') 42mm (1.65'')
    Power Specifications
    • Includes tube power supply

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