For sale due to equipment upgrade. 【Please Note】An AC adapter (DC12V/2A or higher, DC jack 5.5mm x 2.1mm, center positive) is not included. Please prepare your own. FX-AUDIO- D302J+ High-resolution compatible digital-to-analog amplifier with 4 inputs: USB, optical, coaxial digital, and analog. Supports up to 24bit 192kHz. "Captivating soundstage" - Sound quality that rivals high-end amplifiers. Full digital amplifier Equipped with 3 digital inputs (high-resolution compatible) + 1 analog RCA input High-quality electronic volume and tone control functions AC adapter required (sold separately) DC12V/2A or higher, DC jack 5.5mm x 2.1mm (center positive)