Im kind off getting confused here, so you have a gh 50 or 100L? And using a 2x12 with the channel vol crancked and the master on 1 it is too loud?
If your folks are that strict about noise i would definately take the rig to uni, i make more noise than that acoustically :lol:
In general i fill the house up to a nice 'shopping mall' background volume, which is pretty much cranked halfway, or play at loud TV volume at which i sit in front of the amp.
Anyway, i dont crank the channel volume, i only push the preamp into sounding like it. Master is pretty much at 2-3 (8-9 oclock) then, same as the channel vol.
I also dont mind the sound being a bit thinner, it just is like that and i know what it sounds like when cranked anyway so.....
The 2205 is a very good recording volume amp though, sounds strange maybe but it is.
If you have the 100w version you can simply take it down to 50 watts which would make some difference.