Welcome to our shop! Introducing our 5.1CH DAC Audio Decoder, model AY77. This decoder is designed to enhance your audio experience by providing high-quality decoding and compatibility with various audio formats. With its 92KHz automatic decoding capability, this decoder is compatible with DTS / AC-3, 192KHz/24Bit audio signals. It supports MP3, AC3, DTS, WAV, WMA, AAC, ALAC, FLAC, APE, OGG, and M4A formats. The AC-3/DTS (LPCM/PCM/RAW) automatically decodes the input signal without any action required. Featuring multi-interface automatic identification, it has digital SPDIF (Toslink/Optical) and coaxial input ports, 6 RCA Cinch channel outputs (FL, FR, SL, SR, CC, SUB), and a 3.5mm stereo headphone port. The decoder can automatically identify the input signals and switch between fiber optic and coaxial channels accordingly. Switching between 5.1ch and 2.0 channel output is made easy with a one-key switch. Simply turn on "5.1CH" when you need 5.1 channel output. Please ensure that your audio source has Dolby or DTS format and that the settings on your device are set to "RAW" or "Bitstream" correctly. The front panel also features an LED indicator to check whether the signal is 5.1ch. You can adjust the output volume using the volume knob control. Please note that an AV power amplifier is still required for optimal performance. If you find the volume to be very low, please double-check and adjust the volume of your audio equipment and amplifier. When the output of the audio equipment or amplifier is very low or in the lowest state, the overall volume will also be affected. This decoder offers high compatibility and is built with anti-interference technology. Its small and sturdy aluminum alloy box design ensures durability. It can be connected to various devices such as network players, HDTV, DVD players, game consoles (such as PS2, PS3, PS4/Pro, Xbox), and AV audio amplifiers or receivers (such as Logitech) to create a perfect digital home theater and surround sound experience. Package includes: - 1 x Decoder - 1 x Charging Cable - 1 x Manual 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.