Shure Beta 27 Large Diaphragm Mic
Description
The Beta 27 side-address condenser microphone is precision engineered for professional sound reinforcement and project studio recording applications. Its flat frequency response and low self noise provide unerring performance in demanding environments. A tight supercardioid pattern insures high gain-before-feedback and maximum isolation from other sound sources.
TECHNICAL SPECIFICATION
- Type: Condenser (externally biased)
- Frequency Response: 20 to 20,000 Hz
- Polar Pattern: Supercardioid
- Impedance: 160 Ω
- Sensitivity (at 1 kHz, open circuit voltage): −37 dBV/Pa (1 Pascal=94 dB SPL)
- Maximum SPL (1 kHz at 1% THD):
- 1000 Ω load: 134 dB (148 dB, Pad on)
- 2500 Ω load: 140 dB (154 dB, Pad on)
- Signal-to-Noise Ratio: (referenced at 94 dB SPL at 1 kHz): 85.5 dB
- Dynamic Range (at 1 kHz):
- 1000 Ω load: 125.5 dB
- 2500 Ω load: 131.5 dB
- Common Mode Rejection: (20 Hz to 20 kHz): > 50 dB
- Clipping Level (20Hz-20 kHz at 1% THD):
- 1000 Ω load: 2.0 dBV
- 2500 Ω 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
- 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?m