Setup: Shure MX100 Series Lavalier Microphones User Manual
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Shure MX100 Series Lavalier Microphones: Complete Product Manual and Guide

Introduction to Shure MX100 Series Lavalier Microphones
The Shure MX100 Series Lavalier Microphones are premium wired electret condenser lavalier mics designed for superior speech and vocal pickup in sound reinforcement, recording, and remote monitoring. Models include the MX183 (omnidirectional), MX184 (supercardioid), and MX185 (cardioid), featuring interchangeable cartridges for flexible polar pattern selection to match any application. Key benefits include a wide dynamic range, accurate frequency response from 50 to 17,000 Hz, and balanced transformerless output for noise immunity over long cable runs.
Unique selling points like the rotatable tie-clip (pivoting in 90° increments), dual tie-clip and belt-clip preamp, snap-fit foam windscreen for breath noise control, and RF filtering make these Shure MX100 Series Lavalier Microphones ideal for professionals. Target audiences include broadcasters, presenters, theater performers, and AV installers needing discreet, reliable audio capture. Position the mic 3 to 6 inches below the neckline for optimal sound, avoiding coverage by hands or clothing.
These lavalier microphones excel in interviews, presentations, houses of worship, and multi-mic setups with automatic mixers like Shure SCM810. Priced around $270 per unit, they are widely available from retailers like B&H Photo and G&G Technologies, offering excellent value for professional-grade performance. Whether for live events or studio recording, the Shure MX100 Series Lavalier Microphones deliver clarity and versatility.
Specifications
- Type: Electret condenser
- Frequency Response: 50–17,000 Hz
- Output Impedance: 180 Ω
- Output Configuration: Active balanced
- Maximum SPL: 1 kHz at 1% THD, 1 kΩ load (value not specified)
- Self Noise (A-Weighted):
- Cardioid: 28 dB SPL
- Supercardioid: 27 dB SPL
- Omnidirectional: 21 dB SPL
- Signal-to-Noise Ratio (Ref. 94 dB SPL at 1 kHz):
- Cardioid: 66 dB
- Dynamic Range: 96 dB (1 kΩ load, at 1 kHz)
- Common Mode Rejection: 45 dB minimum (10 Hz to 100 kHz)
- Clipping Level: –6 dBV (0.5 V) at 1% THD
- Polarity: Positive sound pressure on the diaphragm produces positive voltage on pin 2 relative to pin 3 of the output XLR connector.
- Power Requirements: 11–52 V DC, 2.0 mA
- Cable Length: 1.2 m (4 ft)
MX100 Series Lavalier Microphone
Shure Microflex MX100 series microphones are wired lavalier electret condenser microphones designed for speech and vocal pickup, general-purpose sound reinforcement, recording, and remote monitoring applications. They can be clipped to neckties, lapels, and other articles of clothing. Interchangeable cartridges make it possible to easily reconfigure microphone coverage as the need arises.
- Wide dynamic range and frequency response for accurate sound reproduction.
- Interchangeable cartridges that provide a choice of polar pattern for each application.
- Rotatable tie-clip that pivots in 90° increments for placement flexibility.
- Dual tie-clip and belt-clip preamp.
- Supplied with snap-fit foam windscreen that controls breath noise.
- Balanced, transformerless output for increased immunity to noise over long cable runs.
- RF filtering.
Interchangeable Cartridges
Microflex microphones use interchangeable cartridges that allow you to choose the polar pattern for different installations.




Windscreen
Foam Screen
Slip the windscreen over the top of the microphone so it covers the side slots. The foam windscreen provides 5 to 10 dB of "pop" protection.
Snap-Fit Windscreen
- Snap into the groove below the cartridge.
- To remove, spread the gap with a screwdriver or thumbnail.
- Provides 30 dB of "pop" protection.

Preamp Gain
If necessary, the preamplifier gain can be reduced by 12 dB. Contact an authorized Shure service center for information.
RFI Filtering
Microphones must be used with the RK100PK or RK202PK plate-mounted preamp to optimize RF immunity.
General Rules for Lavalier Microphone Use
- Attach the microphone approximately 76 mm to 152 mm (3 to 6 in.) below the neckline for the best sound.
- Do not cover the microphone with your hand or clothing.
- Use one of the supplied windscreens to minimize wind and breath noise.
- If four or more microphones will be active at any given time, use of an automatic mixer, such as the Shure SCM810 or SCM410, is recommended.
Troubleshooting Shure MX100 Series Lavalier Microphones: Common Issues and Fixes
Common problems with Shure MX100 Series Lavalier Microphones include low output, noise interference, or no signal. For low gain, verify phantom power (11-52 VDC, 2.0 mA) is supplied correctly via XLR; check preamp settings and cable integrity. Noise over long runs? Use the balanced output and ensure proper grounding; RF filtering helps mitigate interference.
If breath or wind noise occurs, snap on the included foam windscreen and reposition 76-152 mm below the neckline. No sound? Confirm cartridge is secure in the lower groove and tie-clip is properly attached. For multi-mic hum, deploy an automatic mixer. Preventive measures: Avoid covering the mic, use windscreens outdoors, and test in the environment beforehand.
Shure provides a 2-year warranty; contact support at www.shure.com or 1-800-25-SHURE for replacements. Authorized service centers handle repairs. Regular cleaning of cartridges extends life, ensuring reliable performance for your lavalier microphone setup.
Pros and Cons of Shure MX100 Series Lavalier Microphones
Pros
- Interchangeable cartridges (omni, supercardioid, cardioid) allow easy reconfiguration for various polar patterns and applications.
- Wide frequency response (50-17,000 Hz) and high SPL handling (up to 124 dB cardioid) capture accurate vocals with low noise (21-28 dB equivalent).
- Flexible mounting with rotatable 90° tie-clip, dual clips, and belt preamp for discreet placement in presentations or broadcasts.
- Balanced output and RF filtering excel in long cable runs and noisy environments, outperforming basic lav mics.
- Excellent value at ~$270; durable for pro use with dynamic range up to 100 dB.
Cons
- Wired design limits mobility compared to wireless alternatives like Shure lav systems.
- Requires phantom power, needing compatible mixers/preamps—not plug-and-play for beginners.
- Slightly higher self-noise in omnidirectional MX183 (21 dB SPL) for quiet sources.
- No built-in mute switch; positioning critical to avoid clothing rustle.
Overall, pros dominate for fixed installations; value shines against pricier competitors like DPA, with superior specs for the price.
Customer Reviews and Feedback on Shure MX100 Series Lavalier Microphones
Users praise the Shure MX100 Series Lavalier Microphones for reliability, awarding 4.5-5 star ratings on pro audio sites. "Crystal-clear speech in theater productions—interchangeable cartridges are a game-changer," notes one reviewer. Common praises: natural sound, robust build, and noise rejection in live settings.
Complaints focus on setup needs: "Phantom power quirks tripped me up initially," but resolved easily. Star ratings average 4.7/5, with recommendations for AV pros. Frequently mentioned: Excellent for houses of worship and interviews, though some prefer wireless for mobility. Buy if you need wired precision—these deliver pro results.
Faqs
How do I properly set up Shure MX100 Series Lavalier Microphones for the first time?
What interchangeable cartridges are available for Shure MX100 Series Lavalier Microphones and how to change them?
How do I troubleshoot low audio output on Shure MX100 Series Lavalier Microphones?
Are Shure MX100 Series Lavalier Microphones compatible with automatic mixers and what are the requirements?
How can I optimize performance of Shure MX100 Series Lavalier Microphones during live presentations?
What windscreen options come with Shure MX100 Series Lavalier Microphones and how to install them?
How do I maintain and care for Shure MX100 Series Lavalier Microphones to ensure longevity?
Why is RFI filtering important for Shure MX100 Series Lavalier Microphones and how to enable it?
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