I have had two fives, for a while, and decided to take the plunge and add the sub as well. Just got it today and after placing it between the two stereo fives and doing a trueplay session, I tried different music types to test what benefits you get. I found out that value depends vastly on music choice. Basically, you need recordings that actually have those very low frequencies in them. Not only electronic but also “analogue” jazz and classic work well if there are “base” instruments. Also, when listening at low volume, the sub helps lift those low frequencies without having to turn up the volume. Try e.g. Billie Eilish’s “Your Power” for a better experience with the sub.
What music do you think works well with a sub and two stereo fives?