(10-11-2018, 09:09 PM)Leo1990 Wrote: [ -> ]Just wondering if anyone has tried https://www.amazon.com/dp/B01NBU1CL6/ref...PLKS9&th=1 ??
Seems to have great reviews. However the response time max is 13khz, so masked tracks would have to be used.
Masked tracks in a pillow speaker are not recommended. The pillow itself will act as a dampener, and this will reduce the coherence of what is being said significantly. Because it is already masked, low volume and at the limits of what can be decoded by the subconscious, this may degrade the effectiveness of the subliminal.
If you're going to use pillow speakers, you should use ultrasonics with them, and make sure you calibrate volume carefully, as well as that the speaker can accurately reproduce those sounds.