Donnie B.
Experienced
Amp/Cab in the room is a guitar cab in a room. A FRFR with IRs is not Amp/Cab in the room.
So literally, that's all there is to it? Damn.
I'm gonna go on anyway.
It would be helpful if you gave your definition of AITR.
I take it figuratively to mean the sound, response, and feel of playing an amp in a room, regardless the size of the room, or how far/close I am to the speakers. I don't think that a guitar cabinet is the only source to get the same sound, response, and feel.
You’ll have to excuse me for using non-scientific terminology, but from what I understand, an impulse response of a cabinet represents the frequency spectrum at a very specific point in space. if we, hypothetically, assume that a guitar cabinet is in a room with no walls, thereby eliminating the perceived reflections of sound, the fact that I usually sit about 6 feet away from the cabinet would have an effect.
First, it's not spectrum but Frequency Response at a singular point. The response charted as X frequency and Y amplitude.
Back to my definition. If you have an 8" champ in a bedroom or a Marshall half-stack on stage in a hall, they are both providing an amp in the room experience, right?