Fidelix Polaris-α (Natural Spectrum Checker)

Polaris-a is a measuring instrument that can measure the sound of the bandwidth below 20kHz, which is the audible band of humans, and the sound of the band of more than 20kHz that can not be heard in human ears separately. Each dedicated microphone can be used to display the sound level of each band with two built-in analog meters.

You can measure ultra-high range from 20 Hz to 20 kHz or higher. It is said that natural sounds contain ultra-high random waves that trigger alpha waves when people are comfortable, but you can check this natural spectrum. Therefore, you can check the level of ultra-high spectrum in music sources such as SACD, adjust the harmonator AH -120K and SH-20K of Fidelix, or check the operation of Super Tweeter. You can also check that there is no source of ultrasound. 

The sensitivity can be switched to 70, 80, 90 dB, and the IHF-A curve can be selected to measure noise as well as sound field characteristics, and the ultrasonic side has a high-pass filter to avoid reacting to audio frequency. Auto power-off is attached to protect the battery from power loss. External power supply can also be used for long time measurement. Since there is also a lineout, it can be more advanced analysis such as connecting to another high-precision meter or connecting to a personal computer. It can also be used as a convenient goods to measure speaker characteristics and listening environment for audio maniacs.

Included: CD containing warble tone and sweep signal