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The digital active speaker solution integrates amplification, DSP and power management on a single PCBA: Class-D amplification with efficiency above 85 percent, DSP handling crossover, EQ and dynamic limiting, plus Bluetooth, USB, AUX and optical inputs. The design comes from a mass-production amplifier platform, with power rating, interfaces and styling all customizable. Founded in 2015, Liwei Electronic runs 8 fully automatic production lines, holds RED and FCC certifications, and supports the full path from schematic to production test.