Headphone Reviews

The Viso HP50 has what’s generally accepted as a subjectively flat measured response, with just a slight elevation in the treble energy between 2 and 8 kHz. Using a high-impedance (i.e., low-quality) source has no effect on the response. Distortion is practically nonexistent, even at a loud level of 100 dBA. Isolation is above average for an over-ear headphone. Impedance averages 37 ohms, and sensitivity from 300 Hz to 3 kHz measures 106.3 dB.—Brent Butterworth