Tweeter Test

Use the 8.5-9.5k Hz spectral tone in order to evaluate high frequencies. The spectral tone is a section of frequencies of equal amplitudes ranging from 8.5k Hz to 9.5k Hz. The spectral tone sounds like a group of crickets chirping. Use the spectral tone for the following reasons:
- Locating the source of the spectral tone is easy.
- Identifying the spectral tone is easy for people with high end hearing loss.