http://www.se.onkyo.com/en/irajax/en/features/wrat-28521.html/cHJvamVjdC5jb21tb24udXJsU2hvcnRlbmVyOw==

Glossary

WRAT

WRAT is based around a low negative-feedback circuit topology that works to reduce signal noise and distortion across the frequency range. A “closed ground-loop circuit” design is employed, in which each circuit has a separate link to the power supply. This helps to cancel individual circuit noise and keep the ground potential free of distortion. High Instantaneous Current Capability (HICC) enables WRAT amplifiers to immediately cancel the speakers’ reflex energy and instantaneously send out the next signal. The same high current better manages speaker impedance fluctuations, which can negatively affect performance.

Products with this feature.
HT-S3705 5.1-Channel Home Cinema Receiver/Speaker Package

It’s powerful, it’s loaded with the latest connections, and it’s ready to launch you on a high-resolution sonic adventure. The HT-S3705 has everything needed to…

TX-SR333 5.1-Channel Home Cinema Receiver

With 5.1 channels of high-current low-distortion amplification, a whopping six 4K/60 Hz-capable HDMI inputs for all your media players and game consoles, and Dolby® TrueHD…

HT-S7705 5.1.2-Channel Network A/V Receiver/Speaker Package

Be among the first in the world to experience the power of Dolby Atmos® sound with the HT-S7705—the HTiB package with everything you need for next-generation home…

HT-RC630 5.1-Channel Home Cinema Receiver (HDMI 2.0)

Adding premium surround sound to widescreen movies doesn’t have to be costly, complicated, or take up a lot of space in your room. The HT-RC630 packs five channels of…