Specifications - Shure KSM27 User Manual

SPECIFICATIONS

Cartridge Type
Frequency Response
Directional Polar Pattern
Output Impedance
Attenuation Switch
Low Frequency response
switch
Phantom Power
Current Drain
Common Mode Rejection
Polarity
Dimensions and Weight
Sensitivity (typical, at 1000 Hz;
1Pa = 94 dB SPL)
Self-noise (typical, equivalent
SPL; A-weighted, IEC 651)
Maximum SPL at 1000 Hz
2500 Ω load (Attenuator on)
1000 Ω load (Attenuator on)
Output Clipping Level*
2500 Ω load
1000 Ω load
Dynamic Range
2500 Ω load
1000 Ω load
Signal to Noise ratio**
*20 Hz to 20 kHz; THD < 1%. THD of the microphone preamplifier when applied input signal is
equivalent to the cartridge output at specified SPL.
**S/N ratio is difference between 94 dB SPL and equivalent SPL of self-noise A-weighted.
Externally Biased Condenser
20 to 20,000 Hz (see Figure 4)
Cardioid (see Figure 5)
EIA Rated at 150 Ω (140 Ω actual)
0 or 15 dB attenuation
flat; -6 db/octave below 115 Hz;
-18 dB/octave below 80 Hz
48 Vdc ±4 Vdc (IEC-268-15/DIN 45 596), posi-
tive pins 2 and 3
5.4 mA typical at 48 Vdc
≥ 50 dB, 20 Hz to 20 kHz
Positive pressure on diaphragm produces posi-
tive voltage on output pin 2 relative to pin 3
53.0 mm (2.08 in.) maximum body diameter,
156.2 mm (6.15 in.) long; 642 grams (22.6 oz.)
(see Figure 6)
6
-37 dBV/Pa
14 dB
137 (152) dB
132 (147) dB
7 dBV
1 dBV
123 dB
118 dB
80 dB