As an engineer, I like to work with the room acoustics if they are really good.
But how you do it depends on the room AND the type of amp.
An open back cab can give a great room tone in a great room, but also problerms in a bad room.
A close cab gives your less "surround sound" but you can still use the room.
If your just working at home and want to get on tape, put the speaker where you like to hear it ,and the mic a foot or so back and experiment with on or off axis till you find the best sound to your ears.
If this also is bouncing off a wall and there aren't other intruments live in the room, a second mic 6 feet away can give you another track with a different sound to work with in the mix. Best to do 2 separate tracks and mix in different pannings later, not both to the same track.
An open back cab 3 feet from the wall, on or off a box, a 2nd mic 5-8 feet back and up high on thestand can geat a great wall tone .
Hope this helps.
[This message was edited by David L. Donald on 10 October 2003 at 11:23 AM.]