- Microphones
- Wired
- Recording
- BETA 27
BETA 27 Large-Diaphragm Side-Address Microphone
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Low self-noise and a supercardioid pattern
that delivers high gain-before-feedback
makes the Beta 27 ideal for critical live
and studio applications.
Features
Supercardioid polar pattern specifically targets the sound source consistently with greatly minimized bleed from off-axis sound sources Tailored for superior transient response from a low-mass, 1” externally-biased, ultra-thin 24 Karat gold-layered Mylar® 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 lowend | | -15 dB switchable attenuator handles extremely high SPLs with ease Premium electronic components and gold-plated internal and external connectors Internal pop filter with three separate mesh layers reduces wind and breath noise. |
Details
Type Condenser (externally biased) Frequency Response 20 to 20,000 Hz Polar Pattern Supercardioid Impedance 160 Ohms Sensitivity (at 1 kHz, open circuit voltage) -37 dBV/Pa 1 Pascal=94 dB SPL Maximum SPL (1 kHz at 1% THD) 1000 Ohm load: 134 dB (148 dB, Pad on) 2500 Ohm load: 140 dB (154 dB, Pad on) Signal-to-Noise Ratio (referenced at 94 dB SPL at 1 kHz) 85.5 dB S/N ratio is difference between 94 dB SPL and equivalent SPL of self noise, A-weighted Dynamic Range (at 1 kHz) 1000 Ohm load: 125.5 dB 2500 Ohm load: 131.5 dBCommon Mode Rejection (20 Hz to 20 kHz) > 50 dB Clipping Level (20Hz-20 kHz at 1% THD) 1000 Ohm load: 2.0 dBV 2500 Ohm load: 8.5 dBV THD of microphone preamplifier when applied input signal is equivalent to cartridge output at specified SPL Self Noise (typical, equivalent SPL, A-weighted) 8.5 dB Polarity Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 Weight Net: 428 g (15.1 oz.) Switch Attenuator: -15 dB Low Frequency Response: flat; -6 dB/octave below 115 Hz; -18 dB/octave below 80 Hz Connector Three-pin professional audio (XLR), male Power Requirements 48 Vdc phantom, 5.6 mA