The KSM141/SL Stereo from Shure is a switchable polar pattern, condenser studio microphone pair designed for instrument recording and sound reinforcement. The microphone capsule is switchable between a true omni-directional and a cardioid pattern using a rotating collar. The omni-directional pattern offers a greater pick up area, while cardioid offers attenuation of noise and ambiance at the off-axis sections of the microphones.

End-Addressed Condenser
Extended Frequency Response
Low Self-Noise
Uniform Polar Response
Withstands High SPL

High Output Level
No Crossover Distortion

Transducer	Permanently biased condenser
Frequency Response	20Hz to 20kHz
Polar Pattern	Cardioid and omni-directional
Output Impedance	150Ω (actual)
Switches	Attenuation: 0, 15, or 25dB Low Frequency Response: Flat or -6db/octave below 115Hz
Power Requirements	+48V phantom power
CMRR	>50dB, 20Hz to 20kHz
Output Polarity	Positive pressure on diaphragm produces positive voltage on output pin 2 relative to pin 3
Sensitivity	-37dBV/Pa (typical, @ 1kHz; 1Pa = 94dB SPL)
Noise	Self Noise: 14dB (typical, equivalent SPL; A-weighted, IEC 651) SNR: 80dB
Maximum Input Sound Level	5kΩ Load (Attenuator ON): 145 (160, 170)dB 2.5kΩ Load (Attenuator ON): 139 (154, 164)dB 1kΩ Load (Attenuator ON): 134 (149, 159)dB
Output Clipping Level	5kΩ Load: 15dBV 2.5kΩ Load: 9dBV 1kΩ Load: 3dBV
Dynamic Range (Typical)	5kΩ Load: 131dB 2.5kΩ Load: 125dB 1kΩ Load: 120dB
Output Connectors	Balanced XLR
Dimensions (L x D)	5.8 x 0.8" (146 x 20mm)
Weight	5.5 oz (156g) - each