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25 April 2024
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SHURE KSM109/SL MICROPHONE Instrument condenser, cardioid

Stock code
74-6254
Brand
Shure
Model number
  • KSM109/SL
SHURE KSM109/SL MICROPHONE Instrument condenser, cardioid
SHURE KSM109/SL MICROPHONE Instrument condenser, cardioid

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VAT / Delivery
No longer manufactured. Please contact Technical Support for alternatives.
RoHS Compliant

KSM109 Studio Instrument Microphone

The Shure KSM109 offers incredible performance, combining an extended frequency response for natural sound reproduction with a smooth high end and a tight, controlled low end. It is all the microphone you need for studio instrument recording.

Some typical applications for the KSM109 are listed below, but the microphone may be used for a variety of applications other than those listed.

  • Acoustic instruments -- such as piano, guitar, drums, percussion, strings
  • Wind instruments -- brass and woodwind
  • Overhead miking -- drums or percussion
  • Ensembles -- choral or orchestral
  • Room ambiance pick-up -- guitar amplifier or drums

Both the acoustic environment and microphone placement strongly affect the sound obtained from miking a source. You may need to experiment with microphone placement and room treatments to achieve the best overall sound for each application.

Features

  • A tight cardioid polar pattern
  • Transformerless Class-A preamplifier circuitry design
  • Outstanding transparency without crossover distortion
  • An extended frequency response (20Hz to 20KHz)
  • Natural reproduction of sound with a smooth high-end and a tight/controlled low-end
  • Switchable 15dB Pad allows the input of a wider range of SPL sources
  • KSM109/SL with windscreen and zippered carrying case.

Specifications

Cartridge Type
Permanently Biased Condenser
Frequency Response
20- to 20,000 Hz
  view larger
Directional Polar Pattern
Cardioid
Output Impedance
150 ohms (actual)
Attenuation Switch
0 dB or 15 dB attenuation
Phantom Power
48 Vdc +/- 4 Vdc (IEC-268-15/DIN 45 596), positive pins 2 and 3
Current Drain
5.2 mA typical at 48 Vdc
Common Mode Rejection
≥50 dB, 20 Hz to 20 kHz
Polarity
Positive pressure on diaphragm produces positive voltage on output pin 2 relative to pin 3
Dimensions and Weight
24 mm (0.950 in.) diameter, 162 mm (6.375 in.) long;
195 grams (6.9 oz.)
Sensitivity (typical, at 1000 Hz; 1 Pa = 94 dB SPL)
--41 dBV/Pa
Self-noise (typical, equivalent SPL;  A-weighted (IEC 651))
19 dB
Maximum SPL@ 1000 Hz
5000 ohms load (Attenuator on)
150 (165 dB)
2500 ohms load (Attenuator on)
144 (159) dB
1000 ohms load (Attenuator on)
139 (154 dB)
Output Clipping Level*
5000 ohms load
15 dBV
2500 ohms load
9 dBV
1000 ohms load
3 dBV
Dynamic Range (Attenuator On)
5000 ohms load
133 (136) dB
2500 ohms load
128 (130 dB)
1000 ohms load
122 (125) dB
Signal to Noise Ratio**
75 dB

*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 the difference between 94 dB SPL and equivalent SPL of self-noise A-weighted.

User Guides

SHURE MICROPHONES - KSM Series studio microphones

KSM studio condenser microphones 'balance exceptional sensitivity and flexibility with unmatched durability to accurately capture the widest variety of sound sources. Finely tuned condenser cartridges give voice to each of these elegant recording microphones.'

Shure microphone clamps are supplied as standard with a 5/8″ thread. 5/8″ to 3/8″ adapters are available separately (stock code 53-217).