Cardioid Condenser Microphone

Cardioid Condenser Microphone
AT4051b
Cardioid Condenser Microphone

Overview

Specially engineered to meet the most critical acoustic requirements of professional recording, broadcast and sound reinforcement High front-to-back rejection ratio—cardioid polar pattern improves isolation of desired sound source 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)

Features

  • Ideal for professional recording and critical broadcast applications, these condenser microphones consist of the AT4900b-48 body with either the AT4053b-EL hypercardioid element, the AT4051b-EL cardioid element or the AT4049b-EL omnidirectional element
  • Each microphone features a switchable 80 Hz high-pass filter
Tech Specs

Technical Specification

SKU AT4051b
Frequency Response 20-20,000 Hz
Impedance 50 ohms
Element Externally polarized (DC bias) capacitor
Polar Pattern Cardioid
OPTIONAL INTERCHANGEABLE ELEMENTS AT4049b-EL (omnidirectional); AT4053b-EL (hypercardioid)
LOW FREQUENCY ROLL-OFF 80 Hz, 18 dB/octave
Open Circuit Sensitivity -34 dB (19.9 mV) re 1V at 1 Pa
Output connector Integral 3-pin XLRM-type
Phantom Power Requirements 48V DC, 4.8 mA typical
Maximum Input Sound Level 145 dB SPL, 1 kHz at 1% T.H.D.; 155 dB SPL, with 10 dB pad (nominal)
Signal to Noise Ratio 78 dB, 1 kHz at 1 Pa
Switches 10 dB pad (nominal)
Dynamic Range 129 dB, 1 kHz at Max SPL
Dimensions 155.0 mm (6.10") long, 21.0 mm (0.83") maximum body diameter
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