Audio-Technica AT4033A Cardioid Studio Condenser Microphone

The Audio-Technica AT4033A Cardioid Studio Condenser Microphone is a side-address studio classic designed for clean output signals and exceptional transient response. This 40 Series pro-audio microphone utilizes low-noise, symmetrical, transformerless circuitry to deliver a strong up-front presence. It serves as a versatile tool for professional recording environments and is a recognized favorite for bluegrass applications.

Advanced Acoustic Engineering

The AT4033A features a precision-machined, nickel-plated brass acoustic element baffle that provides enhanced element stability and optimal sensitivity. The internal floating-construction capsule assembly isolates the microphone from external noise and vibration. Additionally, the symmetrical housing assembly creates an open acoustical environment that minimizes unwanted internal reflections.

High-Performance Diaphragm and Circuitry

Equipped with a 2-micron-thick, vapor-deposited gold diaphragm, the AT4033A ensures consistent performance over years of use. This diaphragm undergoes a rigorous five-step aging process to maintain its optimum characteristics. The transformerless circuitry virtually eliminates low-frequency distortion while providing superior correlation of high-speed transients. State-of-the-art surface-mount electronics ensure the microphone meets stringent consistency and reliability standards.

Versatile Signal Control

Users can easily manage audio input with the integrated 80Hz high-pass filter. This switch allows for a quick transition between a flat frequency response and a low-end roll-off. The roll-off function diminishes ambient noise and reduces popping during closely-miked vocal sessions.

Optimized Isolation

For superior mechanical isolation, the AT4033A includes the AT8449a shock mount. This custom mount protects the signal from handling noise and external vibrations. The AT4033A provides the same microphone performance as the AT4033/CL but replaces the previous AT8449 mount with the updated AT8449a version.