Sennheiser MD 21-U Omnidirectional Dynamic Microphone

Legendary Broadcast & Reporting Standard: Sennheiser MD 21-U

The Sennheiser MD 21-U is an iconic dynamic microphone engineered to deliver crystal-clear speech intelligibility in outdoor field reporting, mobile interviews, radio transmission, and studio production.

Designed with a broad frequency response and a true omnidirectional capsule, the MD 21-U maintains natural voice warmth without bass boominless even when held extremely close to the speaker’s mouth. Available now in our Sennheiser pro audio store catalog, this broadcast classic combines time-tested acoustic precision with a heavy-duty metal housing built to withstand tough field conditions.

Key Features & Pro-Level Advantages

• Omnidirectional Dynamic Capsule: Provides uniform sound pickup from all angles without proximity effect, ensuring consistent voice levels during handheld interviews.
• Internal Hum-Compensating Coil: Built-in humbucking coil rejects electromagnetic interference (EMI) from power lines, broadcast transmitters, and video displays.
• Exceptional Mechanical Isolation: Internal capsule suspension keeps handling noise to an absolute minimum during active field work.
• High Resistance to Wind & Pop Noise: Heavy-duty mesh grille suppresses plosives and wind turbulence without requiring thick foam wind protection in light breezes.
• Linear 40 Hz – 16 kHz Frequency Response: Captures rich vocal clarity, acoustic instruments, and high sound pressure levels without harsh coloration.
• Rugged Metal Housing: Industrial-grade metal construction with a non-reflective black finish designed for severe daily use in electronic news gathering (ENG).

Key Technical Specifications

• Device Type: Professional Broadcast & Reporter Dynamic Microphone

• Transducer Principle: Dynamic

• Polar Pattern: Omnidirectional

• Frequency Response: 40 Hz – 16,000 Hz

• Sensitivity (Free Field, No Load): 1.8 mV/Pa ± 2.5 dB

• Nominal Impedance: 200 Ohms

• Min. Terminating Impedance: 200 Ohms

• Hum-Compensating Coil: Integrated (Humbucking)

• Connector Type: 3-Pin XLR-M (Standard Gold-Plated XLR)

• Dimensions: 137 x 65 x 67 mm (5.39″ x 2.56″ x 2.64″)

• Weight: Approx. 280 g (9.88 oz)

• Color / Finish: Black / Anodized Dark Finish

Compatibility & System Integration

• Broadcast & Field Recorders: Connects seamlessly to professional field recorders (Zoom, Sound Devices, Tascam), camera audio inputs, and wireless plug-on transmitters (e.g., Sennheiser SKP series).

• Studio Consoles & Audio Interfaces: Standard 3-pin XLR male output plugs into any audio interface, mixing desk, or microphone preamp without requiring phantom power.

• Mounting & Accessories: Compatible with standard microphone clips (e.g., Sennheiser MZW 421 / MZW 21 foam windshields and quick-release stand mounts).

• Box Contents: 1x Sennheiser MD 21-U microphone, 1x quick setup guide.

• System Expansion: Browse complementary Sennheiser wireless transmitters, broadcast headsets, and field gear on our dedicated Sennheiser Brand Store.