Onkyo’s proprietary audio technologies, such as WRAT (Wide Range Amplifier Technology), VLSC (Vector Linear Shaping Circuitry) and VL (Vector Linear) Digital, provide the audio quality that defines the Onkyo sound—a sound that’s meant to be felt, not just heard. What’s more, we incorporate into our home theater and audio components only the best technologies from elsewhere in the A/V industry—including those from Reon-VX, THX, Dolby Digital, DTS, HDMI, Audyssey, Faroudja and ISF (Imaging Science Foundation).