Re: Legacy Combo Help?
The Legacy has a reputation for being extremely loud and it will give you a richer sound and the distortion will be much more complex than any of the modellers. That said, at low volumes you probably won't hear the differences as distinctly since tube amps usually sound best when pushed a least a little. Using an attenuator with the combo, yes it is certainly possible, will help reduce the volume to managable levels, but it will affect the tone to a varying degree. Speakers need to be pushed to sound the way they're supposed to and that's part of the "full" or "alive" sound that tube amps are renowned for. In my experience, attenuators are great for taking full blown amps and cutting their volume to 3/4 or even 1/2. Any more than that and you would want to make some EQ adjustments to compensate for some tone loss that will occur by bringing the volume down to conversation/bedroom levels.
As for tone, remember that Vai pushes his Legacy with various pedals. Same goes for Satriani, who probably relies on pedals even more for his distortions than Vai. You may find that the Legacy will not give you that rediculous satchuration on it's own and you might still need additional pedals to push it.