AT4049b Omnidirectional Condenser Microphone

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)

SPECIFICATIONS
ELEMENT	Externally polarized (DC bias) capacitor
POLAR PATTERN	Omnidirectional
FREQUENCY RESPONSE	20-20,000 Hz
LOW FREQUENCY ROLL-OFF	80 Hz, 12 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