The Audio-Technica AT4033A is a large-diaphragm cardioid condenser microphone that has been a professional studio staple since 1991. Its transformerless circuitry virtually eliminates low-frequency distortion and provides excellent transient response, while the 2-micron vapour-deposited gold diaphragm undergoes a five-step ageing process for long-term stability. With low noise (17 dB SPL), high sensitivity and tolerance for sound pressure levels up to 145 dB (155 dB with the 10 dB pad), the AT4033A excels on vocals, acoustic instruments and a wide range of studio sources. Supplied with AT8449a shock mount.
Polar Pattern
Cardioid
Large diaphragm
Self-Noise
17 dB SPL
Max SPL
145 dB
155 dB with pad
Low-Cut Filter
80 Hz
12 dB/oct
Features
✓
Transformerless circuitry eliminates low-frequency distortion
Transformerless circuitry eliminates low-frequency distortion
✓
2-micron vapour-deposited gold diaphragm with five-step ageing process
2-micron vapour-deposited gold diaphragm with five-step ageing process
✓
Precision-machined, nickel-plated brass acoustic element baffle
Precision-machined, nickel-plated brass acoustic element baffle
✓
Symmetrical housing minimises unwanted internal reflections
Symmetrical housing minimises unwanted internal reflections
✓
Low-cut filter at 80 Hz (12 dB/oct) and switchable 10 dB pad
Low-cut filter at 80 Hz (12 dB/oct) and switchable 10 dB pad
✓
Two-layer grille with acoustic foam for plosive and sibilance reduction
Two-layer grille with acoustic foam for plosive and sibilance reduction
✓
Warm, flattering sonic character with dynamic-mic versatility and condenser detail
Warm, flattering sonic character with dynamic-mic versatility and condenser detail
✓
AT8449a shock mount included
AT8449a shock mount included
Specifications
| Element | Condenser (large diaphragm) |
| Polar Pattern | Cardioid |
| Self-Noise | 17 dB SPL |
| Max SPL | 145 dB (155 dB with 10 dB pad) |
| Low-Cut Filter | 80 Hz, 12 dB/oct |
| Output | Transformerless, balanced |
| Power Requirement | 48V phantom power |
| Included Accessories | AT8449a shock mount |











