Many classical music insiders are appalled by such acoustical systems.

In 1982 the State Theater's acoustical system was revamped, to little effect.

A new acoustical system for the 2,000-year-old amphitheater is scheduled to be finished for the festival.

The acoustical system was revamped in 1982 and again in 1996 before amplification was added in 1999.

He also authored 135 articles and ten books including an interdisciplinary text charting the dynamical analogies between electrical, acoustical and mechanical systems.

In electrical or acoustical systems, there are similar concepts involving some sort of mass or inertia and some sort of restoring force.

But an improved acoustical system and new private rooms for entertainers have made the place more appealing.

Acceptably loud sounds (to other life forms) became explosive eruptions to the delicate acoustical system of Ytram.

His areas of active research included network theory, acoustical systems, electromagnetic apparatus, and data transmission.

Mechanical examples include pendula (with small angles of displacement), masses connected to springs, and acoustical systems.