Laboratory for Building Components and Sound Insulation Performance of Doors and Windows Physical Performance Testing Equipment for Doors and Windows

Signal source noise testing range (reverberation chamber calibration): (Note: Sound source frequency range 50Hz or 100Hz~5KHz) 1. White noise: 20Hz~22.4KHz; 2. Pink noise: 20Hz~22.4KHz; 3. passband noise: 20Hz~20KHz (building acoustics 50Hz or 100Hz~5KHz) 1/3 octave band passband noise signal. Audio power amplifier: (note: sound source frequency range 50Hz or 100Hz~5KHz) 1. Rated output power (RMS, 4 Ω): 100W; 2. Rated load impedance: 4-8 Ω; 3. Input sensitivity: 300mV ± 10mV; 4. Overload source electromotive force: ≥ 2.0V; 5. Frequency response: 20Hz~20KHz; 6. Harmonic distortion (1KHz): ≤ 0.3%; 7. Signal to Noise Ratio (A-weighted line input): ≥ 100dB; 8. Weight: 12Kg; 9. Size: Width x Depth x Height=435mm x 410mm x 155mm. l Sound Source: 1.12 Non directional Surface Sound Source Acoustic Index: Frequency Response: 50Hz~5KHz; Electric power: 180-360W; maximum output sound