These active loudspeaker systems may be built for professional concert touring such as the pioneering JM-3 system designed in 1971 by Harry McCune Sound Service, or they may be built for high-end home use such as various systems from Naim Audio and Linn Products.
They were also keen to find new materials to build with, such as metal and plastic, and new methods of manufacture like those used in piano construction, so the instrument could be made to stand up to the demands of concert touring with a robustness not found in historical instruments.
The Second World War made concert touring inconvenient, and very high taxes made it non-remunerative.
It hosts major concerts, touring Broadway productions, plays, the Tampa Ballet and special events.
She has performed in several concerts touring with Sara Bareilles.
Today the arena occasionally hosts concerts, touring shows, wrestling exhibition shows, and civic events of a local nature such as high school graduations.
He has continued concert touring repeatedly after 2004.