From the AKG Discreet Acoustic Series, the AKG CHM21 condenser hanging microphone is ideal for capturing audiences, speeches, musical and theatrical performances in theaters, board rooms, houses-of-worship, and hall settings. The included spring steel hanging clamp mounts to ceiling beams and provides quiet, secure positioning with ease. Dual CHM21 microphones can be used for capturing choirs, bands and performances in stereo when used in the X-Y positioning configuration. The cardioid polar pattern features a tight 125 degree pick up area which is ideal for minimizing excessive ambient noise.
| Transducer | Condenser |
| Polar Pattern | Cardioid |
| Frequency Response | 70 to 18,000 Hz |
| Dynamic Range (Typical) | not specified by manufacturer |
| Signal-to-Noise Ratio | < 21 dB-A |
| Maximum Input Sound Level | 125 dB (for 1% THD) |
| Power Requirements | 9 to 52V Phantom Power < 3 mA |
| Output Impedance | >/= 2,000 ohms |
| Output Connectors | 3-pin male XLR |
| Pad | No |
| Low Frequency Roll-Off | No |
| Dimensions | (0.5 x 2.1") (13.5 x 55mm) (Diameter x Length) |
| Weight | 20 g (0.7 in.) |