Neumann NM V Pattern Control Unit for The M 49 V and all vintage Neumann microphone

This classical pattern control unit contains a mains transformer. It automatically switches between the 100-120 V and 220-240 V ac mains voltage ranges.

In the OFF position the NM V draws no current.

To ensure a long life, the tube is heated up gently, with current limiting. A very effective filtering inside the NM V ensures very high-quality operating voltages, with a minimum of residual noise voltages.

Note: The new NM V is suitable in principle for operating all vintage Neumann microphones utilizing the AC 701 tube, such as the older M 49 and M 249.

Older devices as N 52 (a, h) and NN 48 (a, b, h) are not suitable for operating the M 49 V, due to their current and voltage limitations.

OPERATION WITH UNBALANCED INPUTS

At the pattern control unit, the audio signal isavailable at a balanced, floating XLR 3 output. The output is wired as per IEC 60268-12 and IEC 61938:

Pin 1: 0 V/ground
Pin 2: audio signal (+phase)
Pin 3: audio signal (–phase)

So pin 2 is the “hot phase”, pin 3 must be connected to ground when used with unbalanced inputs

NM V

• NM V Pattern Control Unit

Brand

Neumann

The Neumann Company

For decades, Neumann has been regarded worldwide as the standard-setting, leading manufacturer of studio microphones.

THE ORIGIN OF ALL STUDIO MICROPHONES

Many products from the company’s history are considered milestones in professional audio technology. It is no coincidence that recording studios tend to place Neumann gear at the top of their equipment lists, as it is considered a sure sign of highly professional working methods. The foundation of the company’s decades of success is an uncompromising quality-oriented approach to both the development and manufacture of its products. However, in the rare event that a service is required, Neumann.Berlin repairs all microphones, loudspeakers and headphones built after World War II – using original spare parts wherever possible. A service promise second to none.