The TEAC AI-303 audio amplifier, with a compact width of only 215 mm, features a powerful and compact amplifier module, a Bluetooth receiver that supports DAC, Qualcomm aptX HD, and a USB audio input for reading high-resolution sound sources such as DSD256 and PCM 384/32 from a PC, portable device, iPhone, smartphone, or Android tablet, thanks to the USB-C connector. The HDMI ARC/eARC interface allows you to enjoy high-quality sound from your TV with your favorite inputs, while a pair of LINE inputs adapts to your existing hi-fi system. The 4-pole output box with a separate circuit from the ground provides superior sound quality.