The Audio-Technica AT4900b-48 Microphone body is a modular component of the Audio-Technica AT4949b, AT4051b, and AT4053b Condenser Microphone systems.
Element: Externally polarized (DC bias) capacitorPolar
Pattern: Depends on The Mic Head Capsule it is paired withFrequency
Response: 20-20,000 HzLow 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
SPLDynamic 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: Varies with Capsule
Dimensions: Varies with CapsuleOutput
Connector: Integral 3-pin XLRM-type