By employing a laser welding method for fixing the vibrating membrane, environmental resistance is improved compared to conventional products, and stable performance is maintained over the long term.
Because it uses a back electret design, a bias power supply is not required.
Maintains compatibility with previous models and can be replaced.
<Frequency Response>
| MI-1234 | 20Hz ～ 20kHz |
| MI-1432 | 20Hz ～ 8kHz |
The MI-1234 and MI-1432 are 1/2-inch back-electret field-type measurement microphones. Because they do not require a bias power supply, they do not necessitate a high-voltage power supply circuit. Laser welding is used to secure the diaphragm, the heart of the microphone, resulting in improved environmental resistance compared to conventional products. The MI-1234 is a high-performance type with a frequency band of 20Hz to 20kHz, while the MI-1432 is a lower-cost type measurement microphone with a frequency band of 20Hz to 8kHz. They are ideal for measuring and analyzing ambient noise and architectural acoustics, as well as for measuring and analyzing radiated sound pressure from electronic and mechanical equipment. They are used in combination with microphone preamplifiers such as the MI-3111.
