MA412AS Preamplifier: A Tough Performer Safeguarding Industrial Acoustic Monitoring
2026-05-22Product Overview
Developed by BSWA, MA412AS breaks signal transmission limits and delivers efficient, accurate solutions for professional acoustic measurement.
Three Core Problem-solving Strengths
-
Impedance matching
High-input and low-output structure eliminates disconnection and signal loss caused by ultra-high GΩ-level microphone impedance.
-
Harsh environmental resistance
Robust stainless steel housing with mounting lugs features excellent vibration and interference resistance, stable for outdoor and complex equipment installation.
-
Low distortion & flexible connection
Preserves full-band acoustic details. Supports single/dual DC power supply, customizable cable length and ports to fit diverse connection demands.
Outstanding Product Features
Wide Compatibility
Customized for 1/4-inch pre-polarized microphones. Output impedance below 100Ω enables plug-and-play connection with acquisition devices.1
Superior Acoustic Performance
Flat frequency response ranges 4Hz-50kHz (±0.2dB) with typical attenuation of 0.35dB, restoring original sound details for professional audio collection and analysis.
Flexible Power Supply
Dual power modes optional. Separated power and signal lines effectively reduce interference.
Durable & Customizable Design
Solid shell adapts to tough working conditions. Adjustable cable length and port types suit industrial inspection and field measurement.
Multi-scenario Application
-
General Acoustic Monitoring
Collect traffic and construction noise for environmental assessment. Detect abnormal vibration of fans and motors to predict faults and cut maintenance costs.
-
Impedance Tube Measurement
Four-channel synchronous operation meets multi-dimensional analysis on sound absorption coefficient and acoustic impedance, boosting research and development efficiency.
-
Adaptive On-site Measurement
Compatible with battery and regulated power supply. Custom cables connect portable collectors and array systems stably. Isolated circuit guarantees pure signals under strong electromagnetic interference.
FAQ
Q: What is the key advantage of MA412AS?
A: It realizes reliable impedance conversion, stable operation in harsh conditions and flexible customized connection.
Q: Which microphone does it match?
A: Designed for 1/4-inch pre-polarized microphones.
Q: Where can this preamplifier be applied?
A: Suitable for environmental monitoring, industrial fault diagnosis and laboratory acoustic testing.
References
1 BSWA Preamplifier Matching Technical Specification
