Looking for a "tone" filter

When I'm mixing in my bedroom, I tend to fiddle with my speakers, which have two knobs-One is labeled "volume" and the other is labeled "tone". High tone gives really clear high end frequencies, while low tone makes it sound like the music is being played in another room. I'd like to reproduce these effects live. Is mapping my best option? Are there any other options to using mapping? Any leads are greatly appreciated.