When was Tianlong dcd3500g produced?

1988. Tianlong Consumer Electronics Co., Ltd. was established in Germany, and began to sell the world's first CD player dcd3500g with 20bitSLC digital-to-analog converter, which was produced in1988' s. marantz Trading Co., Ltd. was solely responsible for D&; The sales of the four major brands in Chinese mainland during the period of M Group.