SQ3DAC headphone amplifier work using MCU intelligent software control, with the components of the circuit work coordination is excellent, stable operation, flexible operation and other characteristics, the machine's volume adjustment, signal source switch all completed by the MCU processor, performance than the traditional Potentiometers and relays superior, with the machine's high index of heating components, both the life and HIFI sound quality are guaranteedUSB chip using SA9023, digital receiver chip AK4118, Bluetooth digital signal receiving module CSR8670, DAC chip AK4490, headphone amplifier chip TPA6120A2, Germany WIMA, ERO film capacitors, Fujitsu solid capacitors, Panasonic FC series audio dedicated, imported high capacity cholester, military 718 low temperature drift high precision copper feet resistance, active crystal, gold-plated interface, laser laser engraved font, never fade ※スペックなどご不明な点はお気軽にお問合せください。 ■お届けについて こちらは海外から取り寄