The Audio Technica AT4071a is a transformerless, externally polarized line + gradient capacitor microphone. It has been specially created to meet the critical long distance pickup demands of broad casting, film/TV sound, professional recording and theater sound reinforcement. The AT4071a features a broad-band, linear on axis frequency response, with maximum rejection of sounds from both the sides and the rear of the microphone. Rear polar lobing, common in shotgun microphones, has been greatly reduced and the off axis response remains highly uniform. The resultant lack of sound coloration on and off axis makes the AT4071a particularly useful for miking dynamic action in film/TV audio as well as in "spot" miking techniques in the music studio or theater.
| Transducer | Externally Polarized Capacitor Condenser |
| Polar Pattern | Line + Gradient |
| Frequency Response | 30 Hz - 20 kHz |
| Dynamic Range (Typical) | 112 dB, (1 kHz @ Maximum SPL) |
| Signal-to-Noise Ratio | 82 dB, (1 kHz @ 1Pa / A-Weighted) |
| Maximum Input Sound Level | 124 dB, (1 kHz @ 1% THD) |
| Power Requirements | Phantom 11 - 52v DC |
| Output Impedance | 100 Ohms |
| Output Connectors | XLR-3M Type |
| Pad | None |
| Low Frequency Roll-Off | -12 db/Octave, (@ 150 Hz) |
| Applications | Video, Film and Broadcast Usage |
| Dimensions | 15.55 x 0.83" (395 x 21 mm) LxDiameter |
| Weight | 5.5 oz (155 g) |