Live music - how can you tell?

Yesterday, I had a very interesting chat with a true stalwat of the industry who was recounting a time in the distant past when he, and a number of others were asked to take part in a live vs hifi demonstration by a very well respected speaker company.

Sitting in a darkened room, a voice came out from behind the screen "kick drum!", followed by three loud strikes on said instrument.

Some moments later, the same voice announced "loudspeaker". There followed, what was described as a loud farting noise, at which point the entire "panel" fell off their chairs in uncontrollable laughter.

I think that says it all