Artists | Royal | Premieres | Elton John | ROH | Fashion | State | Sport | Wintershall | Big Chill | Countries | Charities We have extensive experience in providing sound systems for the relay of sound to many large scale sporting occasions, particularly running based events. Working at many iconic London landmarks, including the Olympic Stadium and The Queen Elizabeth Olympic Park. We also regularly provided sound systems installed throughout the streets of central London, under very tight time deadlines and H&S requirements.