ET-4610X DSP 3D surround Pre Amplifier Sound controller

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    Lm4610 tone chip PCB, and op275 as the preamplifier
    Lf353 + LM317 + lm337 servo power supply design is adopted. The two operational amplifiers are installed with round hole sockets (if the existing operational amplifiers are not burnt enough, it is convenient to replace the more burnt operational amplifiers to achieve the ideal effect).
    The board is equipped with volume, balance, high tone, low tone, 3D surround potentiometer
    Working voltage: DC double 12-24 V
    AC double 9-16v
    Board size: 100 mm * 75 mm
    Potentiometer spacing: 22mm (red version)