I think you need to analyze what was special about those listening rooms. Your equipment is a notch above the Cambridge duo, and maybe slightly below the Arcam duo. However, the differences are not vast in either direction.
What was the music used?
What were they wired with?
Was a subwoofer connected? (This is a favourite item that most stores leave engaged-some without realizing it)
Remember the room? Was there any audio acoustic treatments? What was the room built from, drywall etc?
What were the stands used for the pieces? Is the isolation from resonance and vibration vastly different from your setup? Speakers? Positioning of speakers and placements? Is the sheer size of the room different from yours?
Were they the only speakers in the room? (Linn dealers have only one set of speakers in listening rooms, as they believe the sound waves will cause any other speakers in the room to become engaged in moving air).
I think that there are so many variables in this equation that you, and only you may be able to answer this question.
Regards,
BBIBH
