Ultrasonic while listening to music? Am I remembering right or wrong?

[Shannon]

Listening to music while playing ultrasonics is fine as long as they were previously calibrated for that listening space, i.e. the distance from audio source that you'll be using them. In the unlikely event that you're using audio at more than 60-80 dB above what you're playing the subliminal, and the audio you're playing is also 14 kHz and up, then you might have reason for concern. But my money is on... playing such volumes and such pitches simultaneously would make you sick AND deaf. I don't think you have anything to worry about.