
Audio-Technica AT4049b - Omnidirectional Condenser Modular Microphone
- - Small-diaphragm omnidirectional condenser, end-address
- - Frequency response: 20 – 20,000 Hz
- - Interchangeable capsules: cardioid and hypercardioid optional
- - 80 Hz high-pass filter and 10 dB pad
- - XLR output, 48V phantom power required
Accessories and Warranties

Audio-Technica AT4049b - Omnidirectional Condenser Modular Microphone
Product Details
Product Features
The Audio-Technica AT4049b is an end-address, omnidirectional condenser microphone for professional recording, broadcast and sound reinforcement. Its omni pattern gives maximum ambient pickup with a natural, uncolored character, and its transformerless, direct-coupled balanced output keeps the signal clean.
The AT4049b is modular: it is made of an AT4900b-48 body and an AT4049b-EL omnidirectional head capsule. Optional AT4051b-EL cardioid and AT4053b-EL hypercardioid capsules fit the same body.
Key Features:
- Omnidirectional pattern for maximum ambient pickup
- Modular design: AT4900b-48 body with AT4049b-EL capsule
- Accepts optional AT4051b-EL cardioid 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
Product Specifications
Audio-Technica AT4049b — Omnidirectional Condenser Modular Microphone
- Element: Externally polarized (DC bias) condenser
- Polar Pattern: Omnidirectional
- 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: 130 g (4.6 oz)
- Dimensions: 155.0 mm (6.10″) long, 21.0 mm (0.83″) diameter
- MPN: AT4049B · UPC: 042005156047
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