Product Description
MM 1 MEASUREMENT MICROPHONE
The MM 1 measurement microphone can be used anywhere that requires precise results. Featuring an omnidirectional polar pattern, this microphone is ideal for measuring studio spaces, PA systems and sound reinforcement systems. When used in combination with a spectrum analyser, it can monitor not only frequency response measurements, but also the sound pressure level of speakers. The MM 1 also provides a valuable service when it comes to measuring audio signals for research, development, and industry.
STRICTLY ACCURATE
The MM 1 boasts impressively high measurement precision – both live and in the studio. We manufacture these microphones within an extremely narrow tolerance with a deviation of +/- 1.5 dB between 50 Hz and 16 kHz. This is made possible by our specialists checking the frequency response of each individual microphone by hand.
IT’S WHAT’S INSIDE THAT COUNTS
A high-quality back electret condenser capsule serves as pressure receiver in the MM 1. The microphone is diffuse field calibrated and demonstrates a linear frequency response at 90°. This makes it easy to measure studio spaces, for example, without the need for too much preparation.
AN UNCONVENTIONAL ALTERNATIVE
The MM 1 is anything but a one trick pony. It delivers good results as an unconventional alternative for instrument recordings – perfect for spontaneously recording song ideas.
FORM FOLLOWS FUNCTION
The MM 1’s shape was designed to deliver exact measurement results. Thanks to the narrow solid metal housing with recessed microphone capsule, the construction has very little impact on the sound field. This means that an increase in sound pressure at high frequencies can be largely avoided. The lightweight, compact microphone is also easy to position. This classic microphone now comes safely stored in a sturdy hard case.
Key Features
- Ideal for measuring the acoustics of various surroundings
- Linear frequency response at 90° (diffuse field calibrated)
- Individual calibration data available for 0° and 90° free-field measurement
- Slimline housing for minimised effect on the acoustic surroundings
- Handmade in Germany
Technical Specifications
- Transducer type: Condenser (back electret)
- Operating principle: Pressure
- Frequency response: 20 - 20,000 Hz (50 - 16,000 Hz ± 1.5 dB), diffuse field calibrated
- Polar pattern: Omnidirectional,
- Sensitivity (0 dB = 1 V/Pa): 15 mV/Pa (= -36.5 dBV) ± 1 dB
- Nominal impedance: 160 Ω
- Nominal load impedance: ≥ 2.2 kΩ
- Max. SPL at f = 1 kHz, k = 1%, RL = 2.2 kΩ: 122 dBSPL
- Signal-to-noise ratio rel. to 1 Pa: > 57 dB
- A-weighted equivalent SPL: approx. 26 dB(A)
- Power supply: 12 - 48 V phantom supply
- Current consumption: approx. 1.9 mA
- Output: electronically balanced
- Connection: 3-pin XLR, male
- Dimensions:
- Length: 139 mm
- Shaft diameter: 19 mm
- Head diameter: 9 mm
- Weight: 73 g
What's Included
- Beyerdynamic MM 1
- Microphone Clamp MA-CL 21
- Mic case
Frequently Asked Questions
- What are the reasons for the facelift?
The M Series microphones are an important part of our microphone history and have been synonymous with outstanding product quality for decades. With the facelift, we are leading the microphones into the future. Since the products have been produced for almost 70 years, it is important that production processes are regularly checked and adjusted. In addition, the design was adapted to comply with our current corporate design. All these measures enable us to have stable microphone production in the years to come.
- What changes were made to the microphones?
First and foremost, the printing on the mics was changed. This way, our classic microphones speak the current design language of beyerdynamic. In addition, the heritage band recognizes the important fact that these mics are made in Germany. The new look combines tradition with future and expresses our microphone DNA. Sound-relevant components such as membranes or transformers have not been changed. The microphone grille of the M 88 is an exception (see the following points).
- Does the sound of the microphones change?
As a company, it is important to us that the known and beloved acoustic properties of the M Series microphones stay unchanged – that is why the microphone transducers and other sound-absorbing parts will be produced in the same way they have always been. Only the grille of the M 88 is an exception. As requested by many of our customers, the microphone grille will be available again in its original three-layered and fine-meshed form with the facelift.
- What influence does the new head grille of the M 88 have on the mic sound?
Thanks to the now three-layer fabric, plosive sounds are dampened in a better way than in the previous version. The changed material of the microphone grille results in subtle changes in sound without changing the outstanding basic sound of the microphone.
- Does the facelift serve to replace manual labor with machines?
No. We still manufacture in filigree handwork in Germany. What has changed are simply production processes to facilitate the work of our qualified personnel. In addition, we have replaced some glue connections with screw connections to provide better serviceability.
- How were the names of the products changed?
The names only change for the M 88 and the M 201, which will lose the suffix “TG”. For all other microphones, there is no change.
- Why are the products no longer named "TG" at the end? Does this affect the construction?
Eliminating the suffix ”TG“ for the M 88 and the M 201 is a way to clearly separate our M and TG product lines and move back to a consistent naming. Nothing has changed in terms of the robust construction of the microphones. The TG Series are touring gear and made for live performances. While ideal for studio use, the M Series microphones are still suitable for use in demanding live situations.
- Will service continue for the current models?
The service for the current models will continue for the next years.
