The Alpha Train

[Cortez]

You can use subs anytime. Most guys usually use it during bedtime because it pretty much guarantees at least 5-8 hours of exposure. You're welcome to use it during the day with headphones or whatever. The Alpha Set shouldn't be played around women though, unless you've got headphones, so keep that in mind.

The Ultrasonic subs are a little easier to work with than the Ocean surf for daytime use but I find the ocean surf is pretty soothing and helps me sleep but it's all about preference. I recommend trying out the Self-Confidence sub first because it's free and it will allow you to find out whether ocean surf or ultrasonic is your preferred listening track.

I recommend avoiding the use of ultrasonics with headphones.

Why's that? I think they work really well with headphones.