Audio-Technica AT4051b - Cardioid Condenser Modular Microphone

The Audio-Technica AT4051b is an end-address, small-diaphragm cardioid condenser microphone for professional recording, broadcast and sound reinforcement. Its cardioid pattern helps isolate the source, and its transformerless, direct-coupled balanced output keeps the signal clean at high levels.

The AT4051b is modular: it is made of an AT4900b-48 body and an AT4051b-EL cardioid head capsule. Optional AT4049b-EL omnidirectional and AT4053b-EL hypercardioid capsules fit the same body.

Key Features:

• Cardioid pattern for isolation of the desired source
• Modular design: AT4900b-48 body with AT4051b-EL capsule
• Accepts optional AT4049b-EL omni and AT4053b-EL hypercardioid capsules
• Switchable 80 Hz high-pass filter (18 dB/octave) and 10 dB pad
• Transformerless, direct-coupled balanced output
• Rugged turned-brass housing
• Integral 3-pin XLRM-type output; requires 48V phantom power

Audio-Technica AT4051b — Cardioid Condenser Modular Microphone

• Element: Externally polarized (DC bias) condenser
• Polar Pattern: Cardioid
• Frequency Response: 20 – 20,000 Hz
• Low-Frequency Roll-Off: 80 Hz, 18 dB/octave
• Open-Circuit Sensitivity: –34 dB (19.9 mV) re 1V at 1 Pa
• Impedance: 50 ohms
• Maximum Input Sound Level: 145 dB SPL, 1 kHz at 1% T.H.D.; 155 dB SPL with 10 dB pad (nominal)
• Noise: 16 dB SPL
• Dynamic Range: 129 dB, 1 kHz at Max SPL
• Signal-to-Noise Ratio: 78 dB, 1 kHz at 1 Pa
• Phantom Power Requirements: 48V DC, 4.8 mA typical
• Switches: Flat, roll-off; 10 dB pad (nominal)
• Output Connector: Integral 3-pin XLRM-type
• Weight: 126 g (4.4 oz)
• Dimensions: 155.0 mm (6.10″) long, 21.0 mm (0.83″) diameter
• MPN: AT4051B  ·  UPC: 4961310101411

- AT4051b Cardioid Condenser Microphone
- AT8405a stand clamp for 5/8"-27 threaded stands
- Windscreen
- Protective carrying case

Safety Data Sheet (PDF)