37 watts in an average room at 12 feet gives _____ db
Well, if you're (note punctuation) THE deaf monk, I think you have it exactly right.
You can always search out an online calculator to give you a number. I know at 8' I can play at 90db and will require around 65w for those 12db peaks Alan talks about.
I actually agree with you on that 1% distortion at 37w. I have no idea what the relationship between power increase and distortion is, but it can only go up. I bet it varies depending on the specs of the components involved.
I posted the link when you wrote about distorted bass.