AKG MB3 High Performance Flush-Mount Boundary Layer Microphone
Description
AKG MB3 High Performance Flush-Mount Boundary Layer Microphone
The AKG MB3 captures pristine, natural sound with minimal coloration, making it an excellent choice for recording vocals, acoustic instruments, and dialogue in studio and hybrid environments where transparency and definition are critical. Its flush-mount design integrates seamlessly into any surface—mounted on a kick drum, piano lid, or vocal booth wall—maintaining a discreet physical footprint while delivering exceptional presence and frequency clarity. This boundary layer mic responds with remarkable sensitivity and transparent tone that preserves the authentic character of your source material without added artifacts or feedback complications.
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 or acoustic intrusion. Its supercardioid polar pattern provides excellent rejection of off-axis ambient noise and room reflections while maintaining natural pickup from the primary sound source, making it ideal for isolating individual instruments or vocals in multi-mic session setups.
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 in a single take, while the 72 dB-A signal-to-noise ratio and 22 dB-A equivalent noise level ensure studio-grade fidelity for professional tracking and overdubs.
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-quality sound capture with practical session versatility, making it an essential boundary layer solution for transparent tracking, multitrack recording, and hybrid live-to-tape workflows.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The MB3 is a transparent boundary layer microphone perfect for capturing vocals, instruments, and dialogue in sessions where natural tone and minimal coloration are essential. Its supercardioid pickup and low equivalent noise (22 dB-A) keep off-axis room noise out of your recordings while preserving detail across the full frequency spectrum. Place it flush on a desk, instrument, or console surface for discreet, isolated recording in small studios or live-to-tape setups.
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.
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