- The Onkyo TX-SR313 A/V Home Theater Receiver is capable of producing immersive surround sound for your home theater system. It offers support for up to 5.1 channels with 65W per channel power ratings to bring your movies and music to life. A front-panel USB port offers a high-quality digital link to your iPod or iPhone. To get the best from your compressed audio files, the TX-SR309 employs Onkyo's proprietary advanced music optimizer. The TX-SR313 supports a host of audio formats including Dolby TrueHD and DTS-HD Master Audio which deliver high definition, lossless audio. These formats are carried by four HDMI inputs that also support immersive 3D video content as well as Audio Return Channel (ARC), DeepColor, xvColor, lip sync, and several Dolby and DTS audio codecs. This receiver also allows you to set the crossover frequency of your subwoofer for optimum bass output. Meanwhile, an overlaid on-screen display via HDMI makes it easy to make adjustments and set up. If you're looking for a powerful way to enjoy mono, stereo, or multi-channel audio up to 5.1 channels, the makes a smart addition to your home theater system.