Bruel & Kjaer 2669B 1/2" Microphone Preamplifier
Request a quote
Bruel & Kjaer 2669B is a 1/2" microphone preamplifier with full EMC compliance, patented charge-injection calibration, low noise, and wide dynamic range.
Product details
| Model | 2669B |
| Manufacturer | Bruel & Kjaer |
| Category | Sound Level Meters |
| Availability | Made to order |
Description
Overview
The Bruel & Kjaer 2669B is a general-purpose preamplifier and high-impedance input probe for microphone measurement systems. Designed for operation across a wide range of environmental conditions including temperature and humidity variations, it provides amplification and conditioning for 1/2" microphones and compatible models with adapter options for 1", 1/4", and 1/8" formats.
Key Features
- Compatible with 1/2" microphones (1", 1/4", and 1/8" with adapters)
- Full electromagnetic compatibility (EMC)
- Patented charge-injection calibration for on-site calibration of entire measuring channel
- Very low inherent noise and high input impedance
- Low output impedance enabling use with long extension cables
- Wide dynamic range for measurement flexibility
- Detachable thin cable for easy installation
- Compact LEMO connector (0B 7-pin)
- Designed for wide temperature and humidity range operation
Applications
- Sound level and acoustics measurements
- Vibration analysis and monitoring
- Environmental noise surveys
- Laboratory and field sound measurements
Specifications
| Microphone Compatibility | 1/2", 1", 1/4", 1/8" (with adapters) |
| Connector | LEMO 0B 7-pin |
| Operating Temperature | -10°C to +60°C |
| Output Impedance | ≤200Ω |
| Input Impedance | ≥10 MΩ |
Request a quote
Bruel & Kjaer 2669B 1/2" Microphone Preamplifier
Response within 24 hours
No obligation
Direct communication