Yes.. it works remarkably well and is tuned so your brain doesn't even notice the amplification. If, for example, the reverb is jacked up to make the room sound

Yes.. it works remarkably well and is tuned so your brain doesn't even notice the amplification. If, for example, the reverb is jacked up to make the room sound like a cathedral then your brain immediately knows it is "fake" -- but under normal settings unless the system was explained, someone in the room would not notice what is going on.