Shure KSM44A, User Manual

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8
Specifications
Cartridge Type
Dual-Diaphragm, Externally-Biased Condenser
Polar Pattern
selectable
Cardioid, Omnidirectional, Bidirectional
Frequency Response
20 to 20,000 Hz
Output Impedance
50 Ω
Sensitivity
open circuit voltage, @ 1 kHz, typical
Cardioid Omnidirectional Bidirectional
–31 dBV/Pa[1] (29.8 mV) –37 dBV/Pa[1] (14.8 mV) –36 dBV/Pa[1] (16.8 mV)
Maximum SPL
1 kHz at 1% THD[2]
Cardioid Omnidirectional Bidirectional
PAD OFF 2500 Ω load 134 dB150 dB 140 dB152 dB 139 dB151 dB
1000 Ω load 131 dB147 dB 137 dB149 dB 136 dB148 dB
PAD ON 2500 Ω load 134 dB150 dB 140 dB152 dB 139 dB151 dB
1000 Ω load 131 dB147 dB 137 dB149 dB 136 dB148 dB
Signal-to-Noise Ratio[3]
Cardioid Omnidirectional Bidirectional
90 dB 88 dB 86.5 dB
Dynamic Range
@ 1 kHz
Cardioid Omnidirectional Bidirectional
2500 Ω load 130 dB 134 dB 131 dB
1000 Ω load 127 dB 131 dB 128 dB
Clipping Level
20 Hz to 20 kHz, 1% THD
2500 Ω load 9 dBV
1000 Ω load 6 dBV
Self Noise
equivalent SPL, A-weighted, typical
Cardioid Omnidirectional Bidirectional
4 dB SPL-A 6 dB SPL-A 7.5 dB SPL-A