Quote from the article:
“Although it’s nice to listen to a specific set of speakers or audio components, chain stores often set up systems to favor the systems at the expense of the listeners. You won’t be sitting (or standing) in the exact same area, in the same size room, in your own home theater. In fact, most chain stores have huge rooms, with at least one glass wall, and you’re standing up—-about as different from a typical home theater as you can get. So, although you will get an idea of the sound you would obtain at home, realize that it’s not a perfect picture of what to expect. If you want a closer-to-home experience, boutiques [Hack #4] often have viewing and listening rooms that closely simulate a home theater, with regular walls, only one door, low lighting, and even theater seating. “