Designed to deliver a thrilling sonic experience, the NR1508 AV Receiver features expanded connectivity including built-in HEOS wireless multi-room audio technology, to enable you to enjoy your favorite music anywhere and everywhere around your home. You can explore and play music from your own music library, from online streaming music services, and from thousands of Internet radio stations using the free HEOS app for smartphones and tablets, with high resolution audio fully supported for incredible fidelity. The NR1508 also features Bluetooth and AirPlay compatibility to stream music directly from any compatible device. For high resolution surround from your favorite movie soundtracks the NR1508 is equipped with advanced 32-bit DSP processing supporting all the major sound formats, including Dolby TrueHD and DTS-HD Master Audio. Its power amplifier section features high current discrete power transistors and identical circuit topology for all 5 channels, and is compatible with low impedance 4 ohm speakers.