Denon AVRX2100W 7.2 AV Receiver (Certified Refurbished) This Certified Refurbished product is tested & certified by Denon to look and work likenew. The product includes all original accessories, and is backed by a 1 year warranty. By having two subwoofers in different locations in the room, the bass quality can very often be significantly better due to response averaging with smoother, deeper bass free of annoying peaks. You can experience this element using the dual subwoofer outputs. sing WiFi, Bluetooth, AirPlay, or DLNA, you can stream all of your music from your Bluetooth enabled devices such as your smartphones, MP3 players, and even tablets right o the AVRX2100W. With at least 8 HDMI inputs the Denon SRVX2100W seven HDMI inputs in the rear and one in the front. This allows you to easily connect you game consoles, HDTV camcorder, or other HDMI components. The dual outputs let you run two different displays at once. hanks to the AVRX2100Ws flexible Amp Assign function, you can choose to power a 5.1 channel home theater surround system, and dedicate the 2 additional amp channels to deliver stereo sound to a pair of speakers in another room.