AKG MB3 High Performance Flush-Mount Boundary Layer Microphone
Description
AKG MB3 High Performance Flush-Mount Boundary Layer Microphone
The AKG MB3 captures your live sound with pristine clarity and natural response, letting your tone come through without coloration or feedback problems. Its flush-mount design vanishes into your stage setup or studio walls, staying visually discrete while delivering exceptional presence and definition across the frequency spectrum. This boundary layer mic gives you transparent pickup that honors the authentic character of your performance.
Design & Build
The compact cylindrical form factor measures 84 mm in height with a 27 mm diameter, weighing just 2.7 ounces (78 grams), allowing for unobtrusive placement on any flat surface without visual intrusion. Its supercardioid polar pattern provides excellent rejection of off-axis ambient noise while maintaining natural pickup from the primary sound source, making it ideal for isolated recording or live reinforcement in acoustically challenging spaces.
Audio Performance
The MB3 captures frequencies from 50–15,000 Hz with 22 mV/Pa sensitivity, delivering detailed response across vocals, instruments, and dialogue without sacrificing clarity or introducing unwanted artifacts. Its 120 dB maximum SPL at 3% THD handles both delicate whispers and dynamic peaks, while the 72 dB-A signal-to-noise ratio and 22 dB-A equivalent noise level ensure studio-grade fidelity even in demanding live environments.
Key Features
- Frequency response: 50–15,000 Hz
- Sensitivity: 22 mV/Pa
- Supercardioid polar pattern for excellent off-axis rejection
- Maximum SPL: 120 dB at 3% THD
- Signal-to-noise ratio: 72 dB-A
- Equivalent noise level: 22 dB-A
- Dimensions: 84 mm height × 27 mm diameter
- Weight: 2.7 ounces (78 grams)
- 3-pin balanced XLR male connector
- Phantom power: 12–48 V at 4 mA nominal current
- Impedance: 150 Ohm
- Satin black finish
The AKG MB3 combines professional sound capture with the practical advantage of a nearly invisible presence, making it a trusted choice for any player serious about transparent, feedback-resistant amplification and recording.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The AKG MB3 is a compact flush-mount boundary layer microphone designed for live vocals, acoustic instruments, and dialogue where natural, uncolored sound is critical. Its supercardioid pattern rejects ambient noise and feedback while the small 27mm diameter sits flush into any surface—ideal for stage setups, installed systems, or venues where visibility matters. You get studio-grade clarity (50–15kHz, 72 dB-A SNR) and solid SPL handling (120 dB) without the bulk or visual footprint of traditional stage mics.
Frequently Asked Questions
What does flush-mount boundary layer mean, and where would I place it?
The MB3 is designed to sit flush against flat surfaces (desks, lecterns, instrument bodies, walls) rather than stand on a boom. Its 27mm diameter and 84mm height let it integrate nearly invisibly into your setup while its boundary layer design captures sound efficiently from sources placed close to the mounting surface.
Will this mic work for live sound reinforcement and stage use?
Yes. The supercardioid pattern rejects off-axis ambient noise and feedback, the 120 dB maximum SPL handles dynamic peaks, and the 3-pin XLR connector with phantom power (12–48V) works with any standard live or recording console. Its compact, discreet design makes it ideal for installed systems, podiums, or instruments on stage.
What's the frequency response and noise performance?
The MB3 captures 50–15,000 Hz with 22 mV/Pa sensitivity and a 72 dB-A signal-to-noise ratio; equivalent noise is 22 dB-A, ensuring clear, detailed pickup even in acoustically challenging spaces without introducing hiss or artifacts.
Is this mic suitable for vocals, instruments, and dialogue?
Yes, the MB3 is designed for all three. Its transparent response across the frequency spectrum and supercardioid rejection of room noise make it equally effective for live vocal mics, acoustic instrument isolation, and dialogue capture in studio or field recording.
What are the impedance and power requirements?
The MB3 has 150 Ohm impedance and requires 12–48V phantom power at 4 mA nominal current, making it compatible with all standard professional audio interfaces, mixers, and preamps with XLR inputs.