Shure KSM42 - Manual (Page 7)

8
SPECIFICATIONS
Transducer Type Dual-Diaphragm, Front-Active, Externally Biased Condenser
Frequency Response 60 to 20,000Hz
Polar Pattern Cardioid
Output Impedance 147 Ω
Sensitivity
(at 1 kHz, open circuit voltage)
−37 dBV/Pa (14.1 mV)
1 Pascal=94 dB SPL
Maximum SPL
(1 kHz at 1% THD)
1000 Ω load: 139 dB
2500 Ω load: 139 dB
THD of microphone preamplifier when applied input signal is equiva-
lent to cartridge output at specified SPL
Signal-to-Noise Ratio
(referenced at 94 dB SPL at 1
kHz)
86 dB
S/N ratio is difference between 94 dB SPL and equivalent SPL of self
noise, A-weighted
Dynamic Range
(at 1 kHz)
1000 Ω load: 131 dB
2500 Ω load: 131 dB
Common Mode Rejection
(10 Hz to 100 kHz)
> 60 dB
Clipping Level
(20Hz-20 kHz at 1% THD)
1000 Ω load: 6.5 dBV
2500 Ω load: 8 dBV
Self Noise
(typical, equivalent SPL,
A-weighted)
8.5 dB
Polarity Positive pressure on diaphragm produces positive voltage on pin 2
with respect to pin 3
Weight Net: 494 g
with shock mount and pop filter: 820 g
Connector Three-pin professional audio (XLR), male
Power Requirements 11 to 52 Vdc phantom, 6 mA