The Shure SM27 Cardioid Condenser Microphone is a cost-effective large diaphragm solution for capturing vocals and instruments in project studio recording applications. Among the SM27's features is a cardioid polar pattern, -15dB pad switch and 3-position low-cut filter switch.
The cardioid capsule effectively minimizes off-axis noise while reducing feedback and a -15dB pad maximizes headroom, reducing peak noise and distortion caused by transient (peaking) audio signals. The SM27's 3-position low-cut filter switch minimizes low-frequency noise and proximity effect. Overall the SM27 is a modestly priced microphone that is sure to please musicians, vocalists, and experienced audio engineers alike.
| Transducer | Externally Biased Condenser |
| Polar Pattern | Cardioid |
| Frequency Response | 20Hz to 20kHz |
| Dynamic Range (Typical) |
2500 ohm load: 123dB
1000 ohm load: 118dB |
| Signal-to-Noise Ratio | 80dB difference between 94dB SPL and equivalent SPL of self-noise A-weighted. |
| Maximum Input Sound Level |
2500 ohm load (Attenuator on): 137dB (152dB) 1000 ohm load (Attenuator off): 132dB (147dB) |
| Power Requirements | 48VDC +/- 4VDC |
| Output Impedance | EIA Rated at 150 ohms (140 ohms actual) |
| Output Connectors | 3-Pin XLR |
| Pad | -15dB |
| Low Frequency Roll-Off |
Flat
-6dB/octave below 115Hz -18dB/octave below 80Hz |
| Dimensions (LxDiameter) | 6.15 x 2.08" (156.2 x 53.0mm) |
| Weight | 22.6 oz (642g) |