Well before Jimi Hendrix, Maya mega-sound systems boomed

According to a study recently presented by a team from the Universidad Nacional Autonoma de Mexico, Maya building design, layout, construction, and finishes would have been especially good for projecting the human voice or sound from the sorts of musical instruments the Maya used. Using modern sound-measuring instruments and a 3-D computer model of the site, the team concluded that sounds made atop a temple in Palenque could be heard clearly for over a hundred meters.