-- a feature lacking from the company's past offerings -- along with compatibility with the AV Controller app, available for iOS, Android and the Kindle Fire. There's also a nifty 4K video pass-through feature, which won't do you much good at present, but may go a long way to future-proofing both devices. There's not much differentiating the models, save for a $100 gap in price ($450 for the V473, $550 for the V573), and 7.1 channel audio in the pricier model (you'll find 5.1 channels in the bargain offering). Both flavors include front-panel USB ports (also with iOS compatibility), four HDMI inputs and digital audio inputs, and 115 watts per channel. You can pick up either model now, and there's a more detailed list of specifications awaiting your gander in the PR after the break.
source: www.engadget.com