Laptop: how do I control subwoofer volume independently of speaker volume?

[Moltke]

Hi [member=458]m654321[/member]

I need to be able to independently control (reduce) the volume on the subwoofer

You could try alsamixer to see if there's an option for that. Open your terminal and type

Code:

$ alsamixer

this will open the tool in the terminal. Also, in pavucontrol there's a padlock, click on it to unlock other controls and see if that helps. Another option is to try "Pulse Audio Equalizer". To install it in your terminal type

Code:

$ sudo apt-get install pulseaudio-equalizer

and see whether or not there's an option that helps you to do what you want to. Sorry not to offer more help but I dont have a "home theater sound system"  to try with, I used to though, but I traded it for an old but really cool stereo sound system  8) ;D

Hope this helps!