Prestasi Accelera Sound Quality Contest Semarang 5th – 6th of July 2008 3rd 15 Million SQ Posted on July 6, 2008February 25, 2018 by Riki Hermanto 06 Jul Event Accelera Sound Quality Contest at Semarang. 5th – 6th of July 2008. Mr.Wishnu Murti – Omega Soundworks Semarang. Riki Hermanto Hot Import Night Sound Quality Contest Semarang. 21th – 22nd of June 2008 3rd 15 Million SQ Accelera for Sound Quality Contest Semarang 5th – 6th of July 2008 1st 15 Million SQ