... after the deposite OVERVIEWPS-Series are a new range of 4 channel, high output power amplifiers, which deliver powerful ... Mono2×7200WFrequency response20Hz-25kHz ±0.5dBTHD+N(Rated Power,4Ω/KHz)%0.1%Signal Noise Ration(dB)110dBInput Sensitivity20K Ohm ... equiped with advanced processing lines and sound online testing systems. R&D department, production, QA, engineering, overseas sales department, ...