Crown CM-311a

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$679.00 to $695.00 Price Tier: Standard

5.0 (4)

Find out who is using Crown CM-311a

17 wishlisted

21 saved

Page last updated Jun 08, 2026

Pricing and availability

We compare 600+ stores and found this item at 6 stores. Prices updated June 6, 2026.

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4.0 (25)

$695.00

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5.0 (7)

$695.00

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3.8 (25)

$695.00

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4.0 (11)

$695.00

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0.5 (1)

$679.00

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3.6 (5)

$695.00

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Average Price: $692

Standard/Professional

$299

$700+

Price Tier

In the Wireless Microphones category, Crown CM-311a is priced in the upper end of the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

Budget

Standard

High-end

Price History

Based on price data from 5 merchants for "Crown CM-311a". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Introducing the Crown CM-311a, the perfect blend of comfort, durability, and sound quality for the active vocalist. Designed to withstand the rigors of live performances, this headset microphone offers a lightweight feel, so you can jump, dance, or rock out without any discomfort or hindrance. The adjustable headband and mic boom cater to different head sizes, ensuring a secure and comfortable fit for all.

The standout feature of the Crown CM-311a is its Differoid cardioid pattern, which provides exceptional noise cancellation. This means, irrespective of stage noise or monitor bleed, your voice will cut through loud and clear. What's more, the CM-311a offers high gain before feedback, ensuring your performance is always backed by pristine audio quality.

The CM-311a is powered by an electret condenser that provides a full, clear, and distortion-free sound, comparable to the best handheld microphones. It comes with an XLR connector on a battery/phantom-power belt pack, ensuring seamless integration with your existing gear. The bodypack power supply is included, making this headset microphone a complete package for performers on the go.

Key Features:

Cardioid condenser headset microphone
Comfortable fit, adjustable for different head sizes
High gain before feedback
Excellent noise cancellation from monitors or stage noise
Electret condenser for full, clear sound
XLR output
Frequency Response 50Hz to 17 kHz
Noise: 26 dB A-weighted
Max SPL: 140dB
Includes bodypack power supply

Product specs

Microphone Type	Condenser
Connector	XLR
Polar Pattern	Cardioid
Frequency Response	50Hz-17kHz
Max SPL	148dB SPL (3% THD)
Output Impedance	75 ohms
Signal to Noise Ratio	68dB
Self Noise	26dB (A weighted)
Cable Length	3.5 ft.
Weight	.13 lb.
Included Accessories	Carry case, pop filter, clothing clip

FAQs

What is the primary application of the Crown CM-311a microphone?: The Crown CM-311a is primarily designed for vocal performances, offering a headworn design that allows for hands-free use, making it ideal for live performances, presentations, and active settings.
How does the Crown CM-311a microphone isolate unwanted noise?: The Crown CM-311a uses Differoid technology, which effectively isolates vocals from background noise, ensuring clear sound even in noisy environments.
What type of connector does the Crown CM-311a use?: The Crown CM-311a is equipped with an XLR connector, providing a reliable and professional connection for audio equipment.
Is the Crown CM-311a microphone suitable for high sound pressure levels?: Yes, the Crown CM-311a can handle a maximum sound pressure level of 148dB SPL, making it suitable for loud performance settings.
What is the polar pattern of the Crown CM-311a microphone?: The Crown CM-311a features a cardioid polar pattern, which focuses on capturing sound from the front while minimizing noise from the sides and rear.

Videos

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Sweetwater

Best Mics for Singing Drummers

Sweetwater

The Crown CM-311A Headset Mic

gearwire

Crown CM311 Microphone - American Musical Supply

American Musical Supply

Review De Microfono Crown CM 311a / Sound Test

CruzVlogs414

Reviews

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PROS

Excellent sound quality with clear highs and deep lows
Impressive off-axis rejection minimizes background noise
High threshold for feedback, ideal for loud environments
Effective anti-feedback technology, even near floor monitors
Durable microphone element with good frequency response
Allows freedom of movement for active performers
Cuts through the mix, enhancing vocal presence
Comes with a rugged, protective carrying case
Great for soft voices, allowing higher volume without feedback

CONS

Headset fit issues; may require adjustment or bending
Boom mic needs to be close to lips for best sound
Headgear may slip, especially when sweating
Plastic components prone to breaking or wear over time
Requires extra equipment for easy volume control adjustments

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Crown CM-311a.

Software and compatibility

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Crown CM-311a suffers from random hiss and noise when used with digital RF systems like Axient, but functions better with analog systems such as UHF-R.
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Some users have switched to Shure SM35 for compatibility with Axient Digital, indicating preference due to interference issues with the CM-311a.
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Setup and maintenance

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Ferrite clamps have been tried to resolve digital RF interference issues, but they were ineffective in practice.
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Drummers who spit frequently should keep extra windscreens on hand, as the CM-311's capsule is sensitive to moisture.
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Comparisons

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Users have reported no issues using the Crown CM-311a with Shure QLXD and ULXD systems, unlike with Axient Digital.
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The AKG CM311 offers even better sound rejection than the Shure SM35, though at a higher price point.
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The CM-311a is favored over the DPA 4088 for better rejection in loud environments, especially with heavy rock bands.
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The Shure SM35 features a solid headband, making it suitable for drummers who need stability during performances.
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Use cases and applications

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The cable of the CM-311a can act as a second antenna with certain digital systems, complicating use under costumes or body suits.
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The Crown CM-311 is favored for its exceptional sound rejection, making it ideal for drummers needing minimized bleed from surrounding instruments.
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Features and functionality

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The CM-311 is considered a "best option" for headset microphones in reducing unwanted ambient noise during performances.
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The CM-311a is robust and offers good vocal sound quality, used by artists like Garth Brooks and Usher.
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User experience

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Users report that finding the CM-311 in Europe can be challenging due to limited availability.
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5.0 out of 5

Based on 0 Reviews and 4 Ratings

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Artist usage

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Dave Mustaine

Guitarist, Singer

Metallica

Verified via reverb.com

This Crown CM-311A Headworn Microphone is Owned by Dave Mustaine, frontman for the legendary metal band Megadeth.

Got your hands full with a bunch of instruments on stage? Ripping that drum fill while also nailing that killer vocal melody at the same time? Maybe you just are too lazy to hold a microphone.. Well do we have the thing for you.

Taylor Swift

Singer, Guitarist

The Agency

Verified via Photo

In a user-uploaded photo on Wikimedia, Taylor Swift is seen using a Crown CM-311a microphone while opening for Brad Paisley in 2007.

Ariana Grande

Singer

Victorious Cast

Verified via YouTube

Ariana Grande used the Crown CM-311a microphone during her performances at the 2016 VMAs and for the first three songs of her 2019 Sweetener World Tour, as seen in the YouTube video by BLUX.

Justin Bieber

Singer, Composer

Young Artists for Haiti

Verified via Photo

The image we see here showcases. Justin Bieber wearing the headset during a photo shoot. It has also been confirmed he uses this headset during his live performances.

The Crown CM-311A is a comfy headset microphone that is both lightweight and able to stand up to the wear and tear of clinging to your head as you jump around.

Rosé (Blackpink)

Singer, Guitarist

Blackpink

Verified via YouTube

Rosé of Blackpink use this Microphone in all of her TV Performances, on SBS Super Concerts and for the Japan 2018 Arena Tour.

AJRBrothers

Singer, Keyboardist

Verified via YouTube

During a live performance captured in the video titled "AJR - World's Smallest Violin live - TMM Tour 4/6/24 Hartford, CT XL Center," provided by IsNotBroken - FanofAJR, Jack from AJRBrothers is seen utilizing the Crown CM-311a microphone to perform amongst the audience. This evidence confirms the use of the Crown CM-311a by the artist during this specific event.

Britney Spears

Singer

Innosense

Verified via YouTube

Britney Spears uses this microphone in almost all of her live performances - however she does lip-sync a large amount of her shows. She uses it in this video at the BBMAS 2016, but will use it in almost every live performance.

Usher

Singer

All Star Tribute

Verified via Photo

In live concerts, Usher uses the Crown CM-311a wireless microphone, as shown in a user-uploaded photo on Wordpress.

Garth Brooks

Singer, Guitarist

Verified via FRONT of HOUSE

Garth made this headset iconic being one of the first in the industry to use it.

Jennie (Blackpink)

Singer, Guitarist

Blackpink

Verified via YouTube

Jennie of Blackpink uses the Crown CM-311a wireless microphone in her TV and music show performances, including during her song "Solo" on the "Blackpink World Tour: In Your Area," as seen in her fan cam performance of "Pretty Savage" on Show! Music Core.

LISA

Singer, Rapper

Blackpink

Verified via YouTube

LISA used the Crown CM-311a wireless microphone during her promotions for the debut single "LALISA," as shown in the Inkigayo performance on September 26, 2021. She also used this microphone for Blackpink promotions, from "Whistle" to "Lovesick Girls."