CA915 High Sound Pressure Calibrator & Full Frequency CoupleIntroduction：
CA915 is a high sound pressure calibrator using the comparison method. The built-in compression driver delivers up to 164 dB at a small cavity. Two 1/2” (or 1/4” with the adaptor) holes where the reference and test microphones are installed were connected to the cavity. The sound pressure levels were measured simultaneously by the reference and test microphones. The comparison was made between two microphones and calibration value was then obtained. The compression driver can handle the frequency from 2 KHz to 10 kHz and it is possible to calibrate the microphone at multi-frequencies.
|Working Principles||Comparison Method|
|Test Objects||1/2???? 1/4????|
|Build-in Loudspeaker||280W Compression|
|Max output SPL||> 154 dB SPL @ 2000 ~ 10000 Hz> 164 dB SPL @ 2000 ~ 2500 Hz,6200 ~ 6600 Hz|
|Frequency response||2k Hz ～ 8k Hz|