Cardioid instrument microphone delivers excellent sound isolation and superior transient response. It features a gold-layered Mylar diaphragm, preamplifier for transparency, subsonic filter to stop low frequency rumble, and a pad for handling SPLs.
| Item no. | KSM137/SL |
| Audio Range | 20 Hz–20 kHz |
| Weight | 100 g |
| Sensitivity | -37.00 dBV/Pa–14.10 mV/Pa |
| Frequency Response | 20 Hz–20 kHz |
| Impedance | 150 |
| Switch Attenuator | 0, −15, −25 dB Low Frequency Filter: flat; -6 dB/octave below 115 Hz; -18 dB/octave below 80 Hz |
| Attenuator | 0, −15, −25 dB |
| Low Frequency Filter | flat; -6 dB/octave below 115 Hz; -18 dB/octave below 80 Hz |