There will be ratings for speaker and powered speaker system too. In 1952 he was making driver units for the McIntosh F100 speaker system. A tweeter is a high-frequency driver that reproduces the highest frequencies in a speaker system. The Wembley speaker system was provided by Hill Pro Audio. Queen Elizabeth Hall where the band debuted its custom-made quadraphonic speaker system. The display features a built-in iSight camera, microphone and dual speaker system. Queen Elizabeth Hall, where the band debuted its custom-made quadraphonic speaker system. Not all regions of the Green Party used the Principal Speaker system. Integrated 8-inch woofer in this direct/reflecting speaker system provides rich and powerful bass effects. Passengers also have emergency voice communication with train staff through a speaker system. Matthew designed the speaker system while George built the cabinets. However, this speaker system is sold with an active equalizer. The "2201" was released in 1966 and was Bose's first speaker system. The S-1 speaker system was the crowning achievement for Cerwin-Vega. For the monitor speaker system, Radio Station in-ear monitors were provided by Garwood Communications.