AT4049B Omnidirectional Condenser Microphone


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Recommended for professional recording and critical applications in broadcast, this versatile microphone may be used with confidence in a wide variety of professional miking applications. Featuring direct-coupled balanced outputs for clean signals in high-output conditions, the microphone is totally free of the distortion associated with conventional transformer-coupled outputs. Its fast response to transients contributes to the open, transparent reproduction of even the most difficult-to-capture instruments. The microphone is fully RoHS-compliant – free from all substances specified in the EU directive on the reduction of hazardous substances (RoHS).

The AT4049b consists of two modular subassemblies: an AT4900b-48 body and an AT4049b-EL omnidirectional head capsule (both available separately). Additional interchangeable capsules are available in cardioid (AT4051b-EL) and hypercardioid (AT4053b-EL).


• Specially engineered to meet the most critical acoustic requirements of professional recording, broadcast and sound reinforcement
• Omnidirectional polar pattern provides maximum ambient pickup
• Direct-coupled, balanced output results in a clean signal even under high-output conditions
• Transformerless circuitry virtually eliminates low-frequency distortion and provides superior correlation of high-speed transients
• Switchable 80 Hz hi-pass filter and 10 dB pad
• Rugged turned-brass microphone housing for enduring dependability
• State-of-the-art design and manufacturing techniques ensure compliance with A-T’s stringent consistency and reliability standards
• RoHS-compliant – free from all substances specified in the EU directive on the reduction of hazardous substances (RoHS)

Element: Externally polarized (DC bias) capacitor
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 (Typical): 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
Switch: Flat, roll-off; 10 dB pad (nominal)
Weight: 130 g (4.6 oz)
Dimensions: 155.0 mm (6.10") long, 21.0 mm (0.83") maximum body diameter
Output Connector: Integral 3-pin XLRM-type
Optional Interchangeable Elements: AT4051b-EL (cardioid); AT4053b-EL (hypercardioid)
Accessories Furnished: AT8405a stand clamp for 5/8"-27 threaded stands; windscreen; protective carrying case
Audio-Technica Case Style: S1
More Information
Weight 1.100000
Length 10.35
Width 4.53
Height 1.67
Color Black
Manufacturer Audio-Technica
Manufacturer Model Number AT4049B
Manufacturer Part Number AT4049B
UPC 42005156047
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