Just wanted to put this back out there. I was wondering why the volume sucked and then I remembered the volume on the Sprint Tv cab is set at 60 by default. Thats why it sounds low.
To raise the volume you'll need a application to change/edit your registry. I use MemMaid but I'm sure you could use any of the
Registry Editors from
HERE.
Once you got that you want to go to .....
HKEY_LOCAL_MACHINE - SOFTWARE - SprintTV.
Goto Volume and change from 60 to 100.