34mm high quality pure gold coated capacitive recording studio microphone large diaphragm head |

34mm high quality pure gold coated capacitive recording studio microphone large diaphragm head |

1.Product type 1.1 34mm pure gold coated capacitive microphone head 2. Performance parameters 2.1 Sensitivity -33(±3)dB(at 1KHz 0dB=1V/Pa) 2.2 pointing characteristics heart shape (at 1KHz) 2.3 Frequency response 20Hz-20KHz 2.4 Maximum sound pressure level 140dB (at 1KHz ≤ 1% T.H.D) 2.5 unit size φ34mmX13.5mm 3. Typical frequency response curve 3.1 Measurement conditions Ambient temperature: 20±2°C Reference sound pressure level: 1Pa (94 dBSPL at1 KHz) 3.2 test curve 4. Mechanical properties 4.1 size: Installation adapter size: φ34x13.5 (mm) 5. Reliability test 5.1 vibration test At a frequency of 10 Hz to 5 Hz, the full-axis vibration of 2 mm per minute is 2 mm, and after 2 hours, the sensitivity changes within ±3 dB. 5.2 high and low temperature test Placed at 60 ° C for 24 hours, transferred to room temperature at 20 ° CC for 2 hours, the sensitivity changes within ± 3 dB Placed at -10 ° C for 24 hours, transferred to room temperature at 20 ° C for 2 hours, the sensitivity changes within ± 3 dB 5.3 Humidity experiment 40 ° C and relative humidity 95 ± 29 when placed for 24 hours, transferred to room temperature 20 ° CC and relative humidity 60 ± 29 when stored for 2 hours, the sensitivity change within ± 3 dB Place at -10 ° C for 30 minutes, 20 ° C for 10 minutes, 60 ° C for 30 minutes, 20 ° C for 10 minutes for 5 times, transfer to room temperature at 20 ° C for 2 hours, the sensitivity changes within ± 3 dB 6. Temperature conditions 6.1 Storage temperature: -10 ° C ~ +55 ° C 6.2 Operating temperature: +5 ° C ~ +55 ° C