The Cyber Acoustics CA-3000 has a sub so it will help to play lower notes but it's only around 50 hz and it plays it louder than the Sentry but I guess if you have a sub that does help alot to play lower notes louder. I guess when I do listen to my music I do want to hear around 50 hz or so without having to hold them close to my ears. But when I' am on the go and going somewhere I will take the Sentry SP100 since they are the best for portable of cource. At home I like using the Bose or Cyber Acoustics or other speakers I have.