The simplest answer is this: There is no "perfect" way to conduct a test.
But .. let's compare a test like this to one as done by most magazines or the typical on line reviewer:
They spend three or four days listening, then write up results as if the results were absolute.
In the GTG setting, what one will get is a variety of opinions based on people listening with no agenda involved. There are no advertisers expecting good results for the $$$ paid.
No one gets told not to audition the speakers for him or her self.
What happens is we get an honest test based on the results as posted by 10 to 15 people who had no idea which speakers were playing.
I can tell you, based on my own experiences along with the opinions of others, that our "basement theater" is one of the better "sound rooms" available. It's very quiet, with little colouration added by the room.
Plus - we have a lot of fun, something sorely lacking in all this.
