I am amazed by the many ways developers have implemented graphics and video via the terminal. I mean, you can watch star wars via telnet. I regularly read Daniel Miessler’s blog and recently came across mapscii: a terminal based map of the world. It is totally amazing.
Speaking of terminal applications, my main music player is the command line version of mplayer. I wanted a great equalizer as well so I could enjoy my new speakers even more and I came across pulseeffects.
I am still experimenting with pulseeffects, but so far I am blown away! I am getting the most out of my sound system and having a lot of fun tinkering.