Shure SM27 LC Multi-Purpose Condenser Microphone

• Uniform cardioid pattern for superior off axis rejection
• Superior transient response from a low-mass large MylarŪ diaphragm
• Flat, neutral frequency response for natural reproduction on stage or in the studio
• 3-position switchable low-frequency filter helps reduce unwanted background noise or counteract proximity effect for consistent, extended low-end
• Durable metal construction.
• Three separate mesh layers reduces wind and breath noise.
• 15dB pad for performance consistency across a wider range of high SPL sources.

• 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 (IEC 268 15/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
• 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
• Self noise (typical, equivalent SPL; A weighted, IEC 651): 9.5 dB
• Maximum SPL (1000 Hz at 1% THD): 2500 ohm load (Attenuator on): 138 (153) dB; 1000 ohm load (Attenuator off): 133 (148) dB
• Output Clipping Level: 2500 ohm load: 7 dBV, 1000 ohm load: 1 dBV
• Dynamic Range: 2500 ohm load: 128 dB, 1000 ohm load: 123 dB
• Signal to Noise ratio: 84.5 dB