AT4033a

Precision-machined, nickel-plated brass, acoustic element baffle provides enhanced element stability and optimal sensitivity
The 2-micron-thick, vapor-deposited gold diaphragm undergoes a five-step aging process so that the optimum characteristics achieved remain constant over years of use
Floating-construction capsule assembly provides isolation from noise and vibration
Open acoustical environment of the symmetrical housing assembly minimizes unwanted internal reflections
State-of-the-art surface-mount electronics ensure compliance with A-T’s stringent consistency and reliability standards
Custom shock mount provides superior isolation

The latest edition of the legendary AT4033 microphone, the side-address AT4033a offers low-noise, symmetrical, transformerless circuitry that results in exceptional transient response and clean output signals. A studio classic and bluegrass favorite, the AT4033 cardioid studio condenser is the microphone that broke the US$1000-barrier in its class. A strong up-front presence characterizes the sonic signature of this 40 Series pro-audio classic. The AT4033a’s 80Hz high-pass filter easily switches between flat frequency response and a low-end roll-off that diminishes ambient noise and popping with closely-miked vocals. Includes the AT8449a shock mount for superior isolation. *The AT4033a is the same microphone as the AT4033/CL. The AT4033a comes equipped with the AT8449a shock mount whereas the AT4033/CL included the AT8449 shock mount.*

Microphones
Element	Fixed-charge back plate, permanently polarized condenser
Polar Pattern	Cardioid
Frequency Response	30 – 20,000 Hz
Low Frequency Roll Off	80 Hz, 12 dB/octave
Open Circuit Sensitivity	-32 dB (25.1 mV) re 1V at 1 Pa
Maximum Input Sound Level	145 dB SPL, 1 kHz at 1% T.H.D.; 155 dB SPL, with 10 dB pad (nominal)
Dynamic Range	128 dB, 1 kHz at Max SPL
Signal-to-Noise Ratio	77 dB, 1 kHz at 1 Pa
Phantom Power Requirements	48V DC, 3.2 mA typical
Weight	380g
Dimensions	6.69″ (170.0 mm) long, 2.10″ (53.4 mm) maximum body diameter
Output Connector	Integral 3-pin XLRM-type
Accessories Included	AT8449a shock mount for 5/8″-27 threaded stands; protective carrying case

AT4033a

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