The AKG C 4000B is versatile as it is affordable. The C 4000B studio condenser microphone is designed for vocal and instrument recording in both, professional and project studios. The microphone features the industries first 1 inch (25mm) dual diaphragm assembly. The microphones low-noise floor is an impressive 8dBa, with a reference value of 0.5% THD at a level of 145dB. In addition the C 4000B offers an equally impressive dynamic range of 137dB. All this provides high headroom, low distortion and noise specifications that rival microphones at higher price points. A cardioid, hyper-cardioid and omni-directional switch is provided and gives the C 4000B its versatility. Switchable polar patterns allow the microphone to be used for various situations. A switchable 10dB pad extends the operating range, allowing the mic to be used with excessively loud instruments as well as vocals.
| Transducer | Condenser |
| Polar Pattern | Cardiod, Hyper-cardiod, Omni-Directional |
| Frequency Response | 20 Hz - 20 kHz (+/-2.5 dB) |
| Dynamic Range (Typical) | 137 dB (A-weighted) |
| Signal-to-Noise Ratio | 86 dB (A-weighted) |
| Maximum Input Sound Level | 145 dB (@ 1kHz, 0.5% THD (155dB w/-10dB pad) |
| Power Requirements | Phantom, 9 - 52V |
| Output Impedance | 200 Ohms |
| Output Connectors | XLR-3M Type |
| Pad | -10dB |
| Low Frequency Roll-Off | -12dB/octave @ 100Hz |
| Dimensions | 7.2"(183mm) Long x 2.2"(58mm) Maximum Width |
| Weight | 16.0 oz(450g) |