The Great Wall Music Festival is an annual outdoor electronic music festival located in Juyongguan, Great Wall, Beijing. It is the first real electronic music-oriented festival in China, originally for hippies but today it covers more of the mainstream youth from China and the rest of Asia.

This year, the Great Wall Music Festival launched successfully on 11 May. The world famous DJ David Guatta, who won the Best Remixed Recording, Non-Classical Grammy Awardsfor 2 years, rocked the music festival with d&b audiotechnik J-series and Q-series line array loudspeakers. The entire sound system was designed by Mr. Chiwai Chan, Technical Director from d&b China.  It is calculated by the d&b ArrayCalc software, with 10 J-SUBs per side as cardioid dispersion pattern, which greatly reduces the reverberant field at low frequencies and provides the greatest accuracy of low frequency reproduction.