AKG CM311 Reference Head-Worn Condenser Microphone XLR Version
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- SKU
- 6000H50930
. Description
AKG CM311 Reference Head-Worn Condenser Microphone XLR Version
The AKG CM311 captures vocals and speech with the clarity of a studio condenser while freeing up hands and floor space in your recording setup. Built around a cardioid condenser capsule with internal shock mounting, this headset mic isolates the source material while rejecting ambient noise, mechanical rumble, and room reflections—essential when tracking dialogue, voiceover, acoustic instruments, or layered vocal sessions in less-than-ideal acoustic environments. At just 61 grams, it remains invisible during takes, allowing talent and musicians to move naturally without fatigue.
Recording Specifications
The CM311 operates across a 50–17,000 Hz bandwidth with a 68 dB-A signal-to-noise ratio and 26 dB-A equivalent noise level, delivering the clean, articulate source material required for professional mixing and post-production. The 1.25 mV/Pa sensitivity and 75 Ohm impedance integrate seamlessly with standard audio interfaces, preamps, and mixing consoles without impedance matching complications.
Construction & Comfort
The robust headband distributes weight evenly for extended recording sessions, while the internal shock mount suppresses handling noise, cable rumble, and body vibrations—critical for capturing pristine takes without unwanted artifacts. The secure, adjustable fit keeps the capsule positioned consistently throughout a session, ensuring repeatable mic technique and stable levels.
Key Features
- Cardioid polar pattern for focused sound capture and rejection of off-axis noise
- Condenser capsule with internal shock mount for mechanical noise rejection
- Audio frequency bandwidth: 50–17,000 Hz
- Sensitivity: 1.25 mV/Pa
- Signal-to-noise ratio: 68 dB-A
- Equivalent noise level: 26 dB-A
- Electrical impedance: 75 Ohms
- XLR 3-pin female connector output
- Lightweight construction at 61 grams
- Compact capsule dimensions: 17.76 mm × 13.97 mm × 7.62 mm
- Head-worn design for hands-free operation
- Robust headband construction for comfort and stability
The CM311 solves the hands-free capture challenge in home studios and project spaces, delivering clean, isolated source tracks suited to voiceover work, streaming production, acoustic overdubs, and any session requiring mobility, isolation, and consistent mic placement without traditional stand-and-boom setup.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The AKG CM311 is a head-worn condenser microphone engineered for broadcast, conferencing, and live-capture applications where isolation and hands-free convenience matter. Its cardioid pattern and shock-mounted capsule deliver articulate, noise-rejecting audio with a neutral tone that captures speech clearly without coloration. This is a specialized tool for recording dialogue, instruction, or performance in environments where traditional mic placement isn't practical.
Who This Is For
Great for
- ✓ Live Performance
- ✓ Broadcast
- ✓ Theater
- ✓ Worship
- ✓ Lecturing/Instruction
Not the best pick for
- – Studio Vocals
- – Acoustic Instrument Recording
Skill level: Intermediate · Advanced · Professional
Frequently Asked Questions
What is the polar pattern and how does it help with noise rejection?
The CM311 uses a cardioid pattern that focuses sound capture from the front while rejecting off-axis noise from the sides and rear. Combined with the internal shock mount, this design isolates the wearer's voice and suppresses ambient room noise, mechanical vibrations, and handling interference.
Is this microphone suitable for instrument miking or studio recording?
No, the CM311 is optimized for live performance, broadcast, theater, and conferencing applications. It is not designed for studio instrument miking or general session recording, where other microphone types and placement methods are more appropriate.
What are the weight and comfort specifications for extended wear?
The CM311 weighs only 61 grams and features a robust headband construction designed for comfort and stability during long performances or broadcasts. Its lightweight, unobtrusive design allows freedom of movement without fatigue.
What connector and impedance does the CM311 use?
The CM311 outputs via a standard XLR 3-pin female connector and has an impedance of 75 Ohms, making it compatible with professional audio interfaces, mixing consoles, and wireless bodypack transmitters.
How does the signal-to-noise ratio affect audio quality?
A 68 dB-A signal-to-noise ratio with an equivalent noise level of 26 dB-A ensures clean, articulate audio reproduction with minimal self-noise. This specification means the microphone itself contributes very little background hiss, keeping your captured audio clear and professional.
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