Description
The AT4021 is a fixed-charge condenser microphone with a cardioid polar pattern. It is designed to meet the demands of critical studio and live applications. The microphone requires 48V phantom power for operation.
The cardioid polar pattern of the microphone is more sensitive to sound originating directly in front of the element, making it useful for controlling feedback and reducing pickup of unwanted sounds. The output of the microphone is a 3-pin XLRM-type connector. The microphone is equipped with a switchable 10 dB pad and a switch that permits choice of flat response or low-frequency roll-off (via integral 80 Hz high-pass filter). The microphone is enclosed in a rugged housing. The included AT8405a stand clamp permits mounting on any microphone stand with 5/8"-27 threads. A windscreen and a protective carrying case are also included.
Features
- Outstanding performance and rugged construction
- High SPL handling and wide dynamic range
- Flat, extended frequency response
- Switchable 80 Hz hi-pass filter and 10 dB pad
- High front-to-back rejection ratio—cardioid polar pattern improves isolation of desired sound source
- Low self noise perfectly suited for digital recording equipment
- Exceptional reproduction of low frequency sounds
- Low-mass element for superb transient response
Accessories Furnished
AT8405a stand clamp for 5/8"-27 threaded stands; windscreen; protective carrying case.
Specifications
POLAR PATTERN Cardioid
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 250 ohms
MAXIMUM INPUT SOUND LEVEL 146 dB SPL, 1 kHz at 1% T.H.D.; 156 dB SPL, with 10 dB pad (nominal)
NOISE 14 dB SPL
DYNAMIC RANGE (typical) 132 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO 80 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIREMENTS 48V DC, 3.0 mA typical
SWITCHES Flat, roll-off; 10 dB pad
WEIGHT 119 g (4.2 oz)
DIMENSIONS 144.0 mm (5.67") long, 21.0 mm (0.83") maximum body diameter
OUTPUT CONNECTOR Integral 3-pin XLRM-type
