High quality, THX Select certified, the VSX-AX3 is a powerful A/V receiver, built according to Pioneers Advanced Multi-channel Stereophonic Philosophy. This means that this amps design adapts certain AIR Studios professional sound engineering principles to the home environment. Besides AIR Studios fine-tuning, the VSX-AX3 features the Pioneer exclusive Advanced Direct Energy MOS FET circuitry, ensuring a stable sound image and strong drivability for all 7 channels - each with a power output of 100 W. And with the Automatic Multi-Channel Acoustic Calibration(MCACC) system with microphone, it will seem like one of the professionals from AIR Studios is adjusting the sound in your living room. The VSA-AX3s advanced 3-D Space frame construction, designed to enhance high fidelity audio, includes an isolated chamber construction as well as direct construction for optimal energy and signal flow. Minimize