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| KSM27 Studio
Microphone |
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Product Code: KSM27
Studio Microphone
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NOTE: The KSM27 has been
discontinued. Replaced with SM27.
User Guides for discontinued Shure products can be found in our
discontinued products User Guide listing.
•KSM27 User Guide
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| Features |
Large single-diaphragm,
side-address condenser microphone. Designed for studio use but
rugged enough for live applications, the KSM27 has extremely low
self-noise, and an extended frequency response specially tailored
for vocal tracking and instrument recording.
KSM27/SL with shock mount, champagne finish, Phantom power
required
- Cardioid polar
pattern
- 1 inch, externally biased,
ultra-thin, 24 Karat gold-layered, low mass, Mylar® diaphragm
provides superior transient response
- Class A, discrete,
transformerless preamplifier for transparency, extremely fast
transient response and no crossover distortion, while minimizing
harmonic and intermodulation distortions
- Premium electronic components
and gold-plated internal and external connectors
- Subsonic filter eliminates
rumble from mechanical vibration below 17 Hz
- Switchable 15 dB pad for
handling extremely high sound pressure levels
(SPLs)
- 3-position switchable
low-frequency filter helps reduce unwanted background noise or
counteract proximity effect
- Integrated three-stage 'pop"
protection grille reduces plosives and other breath
noise
- Internal shock mount reduces
handling and stand noise
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Performance
Characteristics
- Extended frequency response
- Low self noise
- Exceptional low-frequency reproduction
- High output level
- High input SPL capability
- No crossover distortion
- Extremely uniform cardioid polar response
- Superior common mode rejection, suppression of radio frequency
interference
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Applications
Microphone use is a matter of personal taste, and the KSM27 may be
used for a variety of applications other than those
listed:
- Voice -- solo, background,
voice-over, broadcasting
- Acoustic instruments -- such as
piano, guitar, drums, percussion, strings
- Electric instruments such as
guitar and bass
- Wind instruments -- brass and
woodwind
- Low frequency instruments --
such as double bass, electric bass, kick drum
- Overhead miking -- drums or
percussion
- Ensembles -- choral or
orchestral
- Room ambiance pick-up -- guitar
amplifier or drums
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| Specifications |
- Cartridge Type : Externally
Biased Condenser
- Frequency Response : 20 to
20,000 Hz
- Directional Polar Pattern :
Cardioid
- Output Impedance : EIA Rated at
150 ohms (140 ohms actual)
- Attenuation Switch : 0 or 15 dB
attenuation
- Low Frequency response
switch
flat; -6 db/octave below 115 Hz;
-18 dB/octave below 80 Hz
- Phantom Power : 48 Vdc +/- 4 Vdc
(IEC26815/DIN 45 596), positive pins 2 and
3
- Current Drain : 5.4 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
53.0 mm (2.08 in.) maximum body diameter, 156.2 mm (6.15 in.)
long; 642 grams (22.6 oz.)
- Sensitivity (typical, at 1000
Hz; 1Pa = 94 dB SPL)
-37 dBV/Pa
- Selfnoise (typical,
equivalent SPL;
Aweighted, IEC 651)
14 dB
- Maximum SPL at 1000 Hz
2500 ohm load (Attenuator on): 137 (152) dB
1000 ohm load (Attenuator on): 132 (147) dB
- Output Clipping Level*
2500 ohm load: 7 dBV
1000 ohm load: 1 dBV
- Dynamic Range
2500 ohm load: 123 dB
1000 ohm load: 118 dB
- Signal to Noise ratio**
80 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 difference between 94 dB SPL and equivalent SPL of
self-noise A-weighted
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