2U standard chassis, high-strength steel frame structure; SMT patch technology is used to ensure the consistency and stability of the product; three working modes of stereo, parallel, and bridge can be selected; toroidal transformer, full power, with magnetic screen layer , Effective isolation interference; High-power high-efficiency professional power amplifier specially designed for KTV entertainment; It has many protection measures such as DC, overload, overheat, automatic limiting and so on.