At Onkyo, our mission is to deliver outstanding audio and video quality to your home, no matter what budget you're on. With the 7.1-channel TX-SR508, you get an entry-level home theater centerpiece built to unleash the potential of your favorite entertainment sources. The TX-SR508 arrives brimming with processing and connectivity features previously unheard of at this level: Four 3D-ready HDMI 1.4a inputs for connecting your high-definition sources; Studio master-quality HD audio formats from Dolby and DTS; Dolby Pro Logic IIz for new surround-sound possibilities; Powered Zone 2 and bi-amping for more speaker flexibility; and a Universal Port and front-side input for connecting peripherals and portable devices. Meanwhile, Audyssey volume and equalization technologies ensure comfortable listening and a room-fitting soundstage. Underpinning it all is decades of Onkyo amplifier expertise in the form of WRAT (Wide Range Amplifier Technology) and a high-current, low-impedance drive.