With engineer Tzvetan Nedkov we work together since January 2014 over acoustic project for multifunctional hall "Levski" in Sofia. Until now company Decibel has proved its professionalism and high quality of implementation of projects. We recommend eng. Tzvetan Nedkov from Decibel Ltd. as serious, punctual and reliable partner, who owns qualities to deal successfully with all the challenges regarding specific assignment and resolving of acoustic issues with guaranteed quality and speed.