BETA 27 Large-Diaphragm Side-Address Microphone

Model# SU-BETA 27

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	• -15 dB switchable attenuator handles extremely high SPLs with ease
• Tailored for superior transient response from a low-mass, 1” externally-biased, ultra-thin 24 Karat gold-layered Mylar® diaphragm	• Premium electronic components and gold-plated internal and external connectors
• Flat, neutral frequency response for natural reproduction on stage or in the studio	• Internal pop filter with three separate mesh layers reduces wind and breath noise.
• 3-position switchable low-frequency filter helps reduce unwanted background noise or counteract proximity effect for consistent, extended lowend

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