Fidelix Polaris-α (Natural Spectrum Checker)

Polaris-a is a measuring instrument that can separately measure sound in the band below 20 kHz, which is the range of human hearing, and sound in the band above 20 kHz, which is inaudible to the human ear. With two dedicated microphones, each of which is dedicated, the sound level of each band can be displayed by two built-in analog meters.

It can measure not only up to 20Hz~20kHz, but also ultra-high frequencies above 20kHz. It is said that natural sounds include ultra-high-frequency random waves that induce α waves that are emitted when people are comfortable, and this natural spectrum can be confirmed. Therefore, you can check the level of the ultra-high spectrum in a music source such as SACD, adjust the Fidelix harmonator AH-120K or SH-20K, or check the operation of the super tweeter. You can also check if there is a source of ultrasonic waves. 

The sensitivity can be switched between 70, 80, and 90 dB, and the IHF-A curve can be selected to measure not only the sound field characteristics but also the noise, and the ultrasonic side is also equipped with a high-pass filter so that it does not respond to the audio frequency. It has an automatic power off to protect the battery from forgetting to turn off the power. For long-term measurements, an external power supply can also be used. There is also a line-out, so you can connect to another high-precision meter or connect to a computer for more advanced analysis. For audiophiles, it can also be used in various ways as a convenient product to measure speaker characteristics and listening environment.

Included: CD with warble tones and sweep signals