DESC: Affordability and versatility are the hallmarks of the AVR-1609, which features a powerful 7 channel amplifier section to drive a 7.1 multi-channel speaker system, along with extended surround decoders, including Dolby Digital Surround EX, Dolby Pro Logic IIx and DTS ES. Equipped with HDMI v1.3a digital video signal pass-through technology, the AVR-1609 provides 2 HDMI inputs and 1 HDMI output, allowing a single HDMI cable run to your HDTV display. The advanced Audyssey MultEQ in-room acoustic measurement and optimization system automatically analyzes the listening room’s acoustics at up to six different measurement locations, and develops an appropriate acoustic correction algorithm that provides smooth, natural tonal balance throughout the listening space.