Fidelix Polaris-α (Natural Spectrum Checker)

Visualize audible and ultrasonic ranges separately

The Polaris-α is a unique spectrum checker that can independently measure the audible range below 20 kHz, which humans can hear, and the ultrasonic range above 20 kHz, which is inaudible to the human ear. With two specially provided microphones and two analog meters, you can simultaneously and intuitively check both audible sounds and ultrasonic energy.

Check the ultrahigh frequencies in natural sounds and high-quality audio sources

Natural sounds are said to contain random components in the ultrasonic range that are related to comfort and relaxation. Polaris-α is a measuring instrument that allows you to visually confirm the presence of this natural spectrum. It can be used to check the ultrasonic components in high-quality audio sources such as SACD, test super tweeters, and even adjust Fidelix harmonizers AH-120K and SH-20K. It is also effective for tracing sources of unintended ultrasonic noise.

Flexible circuit design for a wide range of measurement purposes

The sensitivity can be switched between 70dB, 80dB, and 90dB, and an IHF-A curve can be selected to support not only sound field measurements but also noise measurements. On the ultrasonic measurement side, a high-pass filter that does not respond to audible frequencies is built in to improve measurement purity. This allows for clear separation and measurement of the audible and ultrasonic ranges.

Supports analysis and long-term measurements

The device is equipped with a line-out, allowing connection to external high-precision meters or a computer for more advanced analysis. An auto power-off function prevents forgetting to turn off the power, and an external power supply can be used for long-term measurements. Using the included warped-tone and sweep signal CD, you can start measurements immediately after installation.

A tool to objectively understand your audio environment.

Polaris-α is a measuring device that allows you to objectively understand changes in sound by "visualizing" speaker characteristics and listening environments. It is a highly practical tool for users who want to check their audio environment from both the audible range and the ultra-high range, without relying solely on perception.