Hong Kong ,ChinaAudio gets involved with Space ,Sound or Voice, Electronics,Struture ,is Art ,more than Science Technology.One factor change,others will change to keep balance... Audio gets involved with Space ,Sound or Voice, Electronics,Struture ,is Art ,more than Science Technology.One factor change,others will change to keep balance as well.Every Frequency Point Change results in Sound Quality Change.I am striving to do better,and showing my professional knowledge.