Aune headphone amplifier X8 XVIII Bluetooth

7 digital filters for altering the sound characteristics; Bluetooth 5.1 with support for aptX HD, AAC, and LDAC; DAC with support for DSD512 and PCM input signals up to 32 bit/768 kHz; RCA and balanced TRS outputs for using the Aune X8 XVIII Bluetooth as a preamplifier; Connection options for active speakers, headphone amplifiers, power amplifiers, computers, iPhone, Android smartphones, tablets, music players, CD players, DVD players, etc.; Inputs: USB-B port, optical input, coaxial input, Bluetooth antenna // Outputs: RCA line output (RCA L/R), balanced TRS preamplifier output (TRS L/R), RCA preamplifier output (RCA L/R)