Denon AVR-1909 7.1 1080P HDMI Multi-Zone Surround Sound Theater

FL, Center and FR work fine. All the surround channels are very low and don’t respond to volume adjustment. I don’t know if I had it set up incorrectly or if those channels are damaged. Sold AS IS for parts only. I don’t have further information on this unit and no returns. Remote control not included. Power cord included.
Lower right knob replaced with silver knob.
Denon's future-ready AVR-1909 comes equipped with the high-current power and advanced digital processing you need for thrilling home theater sound. It boasts 90 watts per channel of acclaimed Denon amplification, plus decoding for the latest high-resolution surround sound formats, including Dolby® TrueHD and DTS-HD™ Master Audio. You also get convenient HDMI digital video switching and upconversion.
Superior picture quality from every video source
The '1909 features 1080p HDMI switching for three high-def video sources. Analog-to-HDMI conversion lets you send all your video sources to an HDMI-capable TV using a single digital cable, simplifying hookup and maximizing picture quality for each source. Plus, when you use the receiver's HDMI output, it can upconvert your non-HD video sources to resolutions as high as 1080p, for a better match with your HDTV's high-res display.
Precision auto setup tailors sound to your room
Denon includes sophisticated MultEQ® auto-calibration to take the guesswork out of setting up your surround sound system. Using the supplied microphone, MultEQ analyzes sound from up to six different listening positions in your home theater, then automatically adjusts level, equalization, and delay settings for each speaker. You'll enjoy spacious, highly accurate sound across a wide listening area. Dynamic Volume mode keeps the sound clear and steady, eliminating those annoying spikes in volume that accompany commercials between TV shows.
Multi-room audio and other conveniences
Dual-room/dual-source audio capability lets you enjoy home theater in your main room while a housemate enjoys stereo music in a second room. A front-panel audio/video input lets you quickly and easily hook up a camcorder or game system. The handy remote with glow-in-the-dark buttons can control most brands of TVs, DVD players, and other components. Denon even includes a second remote that, when used in conjunction with an optional remote control extender system, gives you control of your system from your second listening room.
Product highlights:
90 watts x 7 into 8 ohms (20-20,000 Hz) at 0.08% THD
Dolby® TrueHD, DTS-HD™ Master Audio, Dolby® Digital Plus, DTS-HD™ High Resolution Audio, Dolby® Digital EX, DTS-ES™, Pro Logic® IIx, and DTS Neo:6 decoding
Audyssey Laboratories' MultEQ® six-point auto setup and room calibration system (microphone included)
XM Satellite Radio Ready (requires XM subscription and optional XM Mini-Tuner package)
Neural Surround decoder for XM's HD Surround channels
SIRIUS satellite radio capable (requires SIRIUS subscription and optional SiriusConnect™ home tuner kit)
iPod® integration (requires optional Denon ASD-11R or ASD-3N)
Compressed Audio Restorer for better sound with compressed music sources like MP3 files
Audyssey Dynamic Volume mode to keep listening levels steady
dual-room/dual-source audio (powered and line-level stereo audio output for 2nd room; using powered 2nd-room output allows 5.1 home theater in main room)
high-current, low-impedance amp design
Stereo/Direct modes with Pure Analog Path switch off all unused circuitry for the cleanest possible sound
192kHz/24-bit digital-to-analog converters for all channels
on-screen display for easier system setup and operation
basic remote for 2nd listening room (requires remote control extender system, not included)
17-1/8"W x 5-13/16"H x 16-1/4"D