Pay for features you need and none that you don t with the TX-SR373, a future-ready AV hub that focuses on dynamic reproduction of the most popular multichannel soundtracks, including DTS-HD Master Audio™ and Dolby® TrueHD, with surround calibration included. Discrete high-current amps love music: use Bluetooth® wireless technology with Qualcomm® aptX™ audio to stream any music playing on your phone, tablet, or laptop with no loss in original quality.