@EQ: Your speakers follow your monitor, automatically.

@EQ is a simple app designed to do one simple thing: Switch your speaker setup when you switch your primary monitor.

You could also use it as a preset-capable audio equalizer, but auto-switching is @EQ's main purpose, for folk like me who use their PC also as their movie player (or whatever) on a different screen, with different speakers.

I used to use Equalizer APO for this, but I could never get the darned thing to work automatically, and having to switch EQ & preamp levels manually when we switch to the "movie screen" was becoming tedious (my desktop speakers sound very different to our "movie" speakers, without EQ adjustment). And of course, switching back again.

@EQ, once setup, will automatically and painlessly set your audio output, EQ + preamp levels and audio channels on a per-monitor basis, with zero user interaction.

More info here.

;o)