No electrical, electronic or radio amplifying equipment of any kind is permitted in the boat.
2.
Students must use the university's microphones and other amplifying equipment and must reserve the site in advance.
3.
The four had been charged in an incident in which three security guards said they had been beaten with guitars and amplifying equipment.
4.
Experimentation with pieces of equipment in the sound reproduction chain led him to conclude that amplifying equipment available at the time was of unsatisfactory quality : he could not distinguish different performers, or different kinds of guitar.
5.
The deeply cushioned seats commanded an unobstructed view of the stage, and the egg-shaped contour of the auditorium took advantage of the latest in scientific sound-proofing materials and amplifying equipment to ensure perfect acoustics for concerts, dramatic performances and pre-release motion pictures.
मोबाइल