Description
The DPA BLM4060 is a professional boundary layer microphone designed to pickup speech in meetings, interviews, conferences and other discussion capturing applications. The microphone element features a hemispherical omnidirectional polar pattern for excellent diffuse (reflected) sound field rejection, off the mounted surface.
The omnidirectional polar pattern provides a uniform frequency and sensitivity response at the perimeter of the capsule, allowing talkers to speak freely from any position in relationship to the microphone placement.
The handsome BLM4060 features a stainless steel base and rubber, shock-absorbing center that effectively mounts the capsule and eliminates vibration noise. The BLM4060 delivers incredible sound and is a great looking addition to any boardroom, courtroom, broadcast studio, etc.
- Hemispherical Omnidirectional Pattern
- The hemispherical omnidirectional polar pattern effectively captures talkers seated around the microphone while rejecting reflections of the table surface.
- Excellent Speech Capturing
- The frequency response is optimized for greater intelligibility of speech.
- Handsome Low Profile Design
- The BLM4060 features a stainless steel base and rubber center which holds the capsule and effectively absorbs shock and vibration noise.
| Directional characteristics: | Omnidirectional, hemisphere |
|---|---|
| Principle of operation: | Pressure |
| Cartridge type: | Pre-polarized condenser element |
| Frequency range, ± 2 dB: | 20 Hz – 14 kHz (with a 7 dB soft boost at 8 kHz) |
| Sensitivity, nominal, ±3 dB: | 20 mV/Pa at 1 kHz; -34 dB re. 1 V/Pa |
| Equivalent noise level A-weighted: | Typ. 23 dB(A) re. 20 µPa (max. 26 dB) |
| Equiv. noise level ITU-R BS.468-4: | Typ. 35 dB (max. 38 dB) |
| S/N ratio, re. 1 kHz at 1 Pa (94 dB SPL): | 71 dB(A) |
| Total harmonic distortion (THD): | < 1 % up to 123 dB SPL peak, < 1 % up to 120 dB SPL RMS sine |
| Dynamic range: | Typ. 100 dB |
| Max. SPL, peak before clipping: | 134 dB |
| Output impedance: | From MicroDot: 30 – 40 ohm. From DAD6001: 100 ohm. |
| Cable drive capability: | Up to 300 m (984 ft) |
| Power supply: | Min. 5 V – max. 50 V through DPA adapter. |
| Connector: | MicroDot/XLR 3-pin |
| Microphone weight: | 240 g (8.5 oz) excl. cable |
| Microphone diameter: | 100 mm (4 in) |
| Microphone height: | Height: 12 mm (0.5 in) |
| Cable length: | 3 m (10 ft) |
| Cable color: | Black |
| Cable diameter: | 1.6 mm (0.06 in) |
| Finish: | Black rubber disc mounted in stainless steel base |
| Polarity: | Positively increasing sound pressure produces positive going voltage on MicroDot pin/pin 2 on XLR connector |
| Operating temperature range: | -10 to 45°C (14 to 113° F) |
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