Shure BG4.1 Cardioid Condenser Microphone
Shure BG4.1 Cardioid Condenser Microphone
The BG4.1 microphone utilizes an advanced condenser transducer design for use in professional instrument sound reinforcement and project studio recording. Its electret cartridge has a wide frequency response for natural sound reproduction, and its high sensitivity and low noise make it an ideal choice for producing quality demo tapes. The BG4.1 also maintains a cardioid polar pattern throughout its frequency range which ensures high gain-before-feedback and maximum isolation from undesired sound sources. Operating voltage is supplied by phantom power from a mixer, or an internal AA battery for 10,000 hours of continuous use. Typical applications for the BG4.1 include acoustic guitar, drums, stringed instruments, and vocals (when mounted on a stand).
Specifications:
- Type: Condenser (electret bias)
- Frequency Response: 40 to 18,000 Hz
- Polar Pattern: Cardioid (unidirectional), symmetrical about axis
- Output Impedance: 600 Ω
- Recommended Input Load Impedance: 800 Ω minimum
- Output Level (at 1,000 Hz):
- Open Circuit Voltage: – 68.0 dB (0.400 mV) 0 dB = 1 V/µba
- Maximum SP:
- 2,000 Ω load: 131 dB (phantom), 127 dB (battery)
- 800 Ω load: 129 dB (phantom), 126 dB (battery)
- Output Noise:
- 20 dB typical, A weighted
- 24 dB typical, weighted per DIN 45 40
- Dynamic Range:
- (maximum SPL, 2 kΩ load, to A-weighted noise level
- 111 dB (phantom); 107 dB (battery)
- Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of microphone output connector
- Power:
- Phantom:
- Supply Voltage: 11 to 52 Vdc
- Current Drain: 2.0 mA max at 52 Vdc
- Reverse polarity protected to: 100 Vdc
- Battery:
- Recommended: 1.5 V alkaline AA size (NEDA 15A)
- Life: up to 10,000 hours
- Phantom:
- Environmental Condition: This microphone will operate over a temperature range of –29 to 57o C (–20 to 135o F), and at relative humidity of 0 to 95%.
- Switch: Built in On/Off switch
- Connector: 3-pin male XLR connector designed to mate with Cannon XL series, Switchcraft A3 (Q.G.) series, or equivalent connector
- Case: Steel and brass construction with black painted finish
- Net Weight: 250 g (8.8 oz) less battery
