Bruel & Kjaer 4205 Sound Power Source
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Bruel & Kjaer 4205 generates pink noise (100 Hz-10 kHz) with 0.7 Vrms output for acoustic equipment testing and calibration.
Product details
| Model | 4205 |
| Manufacturer | Bruel & Kjaer |
| Category | Sound Level Meters |
| Availability | Made to order |
Description
Overview
The Bruel & Kjaer 4205 is a portable sound power source designed for testing and calibration of acoustic measurement equipment. It generates pink noise signals across a wide frequency range and provides flexible signal conditioning with external filter inputs and outputs for integration with various measurement systems.
Key Features
- Pink noise signal generation, 100 Hz to 10 kHz
- Sound source output: 0.7 Vrms ± 0.1 V
- Generator output: 1 Vrms ± 0.1 V
- Output impedance: less than 10 Ω
- Frequency response: ± 1.5 dB (source), ± 1 dB (generator)
- Battery powered with up to 10 hour runtime
- Modular design with separate generator and acoustic source components
Included Accessories
- 6 × 1.5V D cell batteries
- External filter connectors for input and output signal conditioning
Specifications
| Signal Type | Pink noise |
| Frequency Range | 100 Hz to 10 kHz |
| Sound Source Output Voltage | 0.7 Vrms ± 0.1 V |
| Generator Output Voltage | 1 Vrms ± 0.1 V |
| Output Impedance | < 10 Ω |
| Sound Source Frequency Response | ± 1.5 dB |
| Generator Frequency Response | ± 1 dB |
| Sound Source Dimensions | 345 mm H × 240 mm diameter |
| Generator Dimensions | 132.6 mm H × 209.5 mm W × 200 mm D |
| Sound Source Weight | 3.5 kg |
| Generator Weight | 3.0 kg |
| Power Source | 6 × 1.5V D cells |
| Battery Life | 2 hours at max output; 10 hours at 80 dB SPL |
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Bruel & Kjaer 4205 Sound Power Source
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