KSM27 Studio Microphone
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
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
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
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. |
