The very very best Speaker Performance is when the Design is produced and trialled in the carefully selected environment to carry out the Testing of the design.
From that point on the variables with environments these designs are to function in are all quite different/unique.
One hopes a dealership demonstrating speakers has done something with the listening environment to help with creating a sound that is improved.
I do not see a dealership having a environment that is a mimic of a Manufacturers Testing Environment.
The same situation passes down to the Purchaser, they certainly may not have any attention given to the Listening environment in their home.
The Purchaser that has taken the time to create a environment with a selection of acoustic controls, or hired the services from a professional body, again will not have a mimic for a Dealers Environment and definitely not the Manufacturers.
A CD, Vinyl LP or Music File are only going to supply a music that one is familiar with, it is not going to create the end product sound.
The end product sound is going to be produced by the speaker, and that sound is very environment dependent, for it to meet 'what it says in the tin' qualities.
