INTRODUCTION

    The microphone-preamplifier combination can be connected directly to all professional measurement system with constant current power inputs, which can meet user's typical measurement needs.

OVERVIEW

Fig 1. Anty M1212U

    Anty M1212U is a 1/2 inch constant current power unidirectional microphone-preamplifier combination for free field measurements. It is terminated with a BNC male connector.

SPECIFICATIONS

1. Outside diameter of microphone

    1/2 inch (12.7 mm)

2. Length of microphone

    66 mm

3. Weight

    < 150 g

4. Nominal open circuit sensitivity

    - 29 ± 2 dB (35.5 mV/Pa)

5. Frequency response

    70 Hz ~ 8 kHz (±2 dB)

6. Environment

    Free field

7. Directivity

    Unidirectionality, sensitivity difference between 0°- 180°± 45° >12 dB

8. Power supply

    4 mA constant current line driver

9. Output interface

    BNC male connector for the output signal and signal ground.

10. Upper limit of SPL

    120 dB for 3% distortion

11. Noise level

    30 dBA

12. Temperature range

    - 20 to +60 °C