Pioneer VSX-523-K: 5.1 Channel AV Receiver. With 140 Watts (1 kHz 1 % THD @ 6 Ohms) 1ch Driven or 80 Watts (20Hz-20kHz .08% THD @ 8 Ohms) per channel of clear audio reproduction and advanced new technologies such as 4K Ultra-High Definition Pass Through and an energy-saving ECO Mode, the new VSX-523-K is the perfect entry-level receiver to introduce Pioneer’s heritage of quality sound reproduction and innovative technology in your home entertainment system. Continuing to lead the way in Apple® connectivity, the VSX-523-K's front USB input now supports music playback and control for the new iPhone® 5 and iPad mini. The VSX-523 effortlessly brings all your entertainment sources together. Plug in a thumb drive into the front panel USB port and play back all your favorite music files, like MP3, WMA and AAC files. And Get the Pioneer VSX-523-K: 5.1 Channel AV Receiver for just $179.99 plus get Free Shipping and No Sales Tax when you use Promo Code: AUTUMN2.