Listening to masked subliminals while I sleep (alternatives to sleep phones)

[GlaizenGold777]

I use a SanDisk MP3 player attached to Audioengine A2+ speakers with a speaker on each side of the bed placed at ear level. They work well from ultrasonic to normal bass, but not for deep bass. If you want deep bass, as well, go with Audioengine A5+.

Keep the equalizer flat while using ultrasonic. You can use bass, treble, etc with masked. But keep it flat with ultrasonic.

I already read about it but forget where the thread is.