Denon AVR-991

7.1 Chan. 3D-Ready A/V Home Theater Receiver with HDMI 1.4a Support and Audyssey MultEQ Correction


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General Features:
  • Advanced 7.1 Channel A/V Home Theater, Multimedia, Multi-Source Surround Receiver
  • Fully HDMI compatible for the complete high definition experience
  • Supports the most advanced HDMI 1.4a cables for ethernet-over-HDMI and extremely high resolution images
  • Ready for 3D support for broadcast and Blu-ray
  • Utilizes the latest in high resolution surround decoders delivering movie theater experience every time
  • Features Dolby TrueHD, DTS-HD Master Audio, Dolby Digital Pro Logic 2, Cinema EQ, Audyssey Dynamic Volume, and more
  • Pure direct mode allows the receiver to operate without the display LED, for discrete playback and less digital noise created
  • Clock Jitter Reducer thoroughly suppresses fluctuations on the clock waveform to remove distortion from the digital audio signal and minimize adverse influences on sound quality
  • Audysseys MultiEQ room acoustic measurement technology analyzes the room that the unit is in and automatically optimizes the sound to be the best possible
  • Each of the 7 channels features a dedicated amp to ensure precise sound reproduction ensures consistent volume levels
  • Advanced Anchor Bay VRS video upscaler converts standard definition inputs to HD (high-definition)
  • Built-in Ethernet port supports network connectivity for streaming Internet radio and streaming
  • Simple to use graphical user interface GUI allows customization and can be outputted to a monitor via HDMI
  • Optimized picture quality for standard definition (SD) and high definition (HD) with digital noise reduction
  • When connected to a network, the AVR-990 can output music to up to 5 rooms at the same time with Party Mode
  • Control the receiver from the internet by connecting to it via IP
  • Get the most out of your compressed digital audio files with Denon's Compressed Audio Restorer
  • Fully compatible with the Denon ASD-11R, Denon ASD-3N, and the Denon ASD-3W iPod docking stations
  • Experience the latest in HD Radio with the built-in HD Radio tuner
  • Front panel USB port allows the playback of digital files via a USB device
  • Compatible with SIRIUS satellite radio when a tuner and subscription is present
  • Denon's 2-Source and 2- Zone function allows a different source to play in a zone other than the main zone
  • 2 Line fluorescent display shows sufficient information about the source, mode, value, and more
  • Auto Lip Sync will correct the delay between the audio and video when connected with compatible TV
  • Binding posts allow for simple connection with banana plug option
  • Built-in AM/FM tuners with 56 presets
  • A powerful all-in-one home theater receiver
  • 1-year warranty
Advanced Audio Features:
  • Stereo RMS Power: 840W (120W x 7 channels @ 0.05% THD)
  • 7-Channel amplifier delivers equal power with individual discrete amp construction design
  • Audio level memory is capable of correcting different signal levels for each input device
  • Minimal signal path designed to transfer signal with minimal degradation
  • Direct mechanical ground construction reduces vibrations and noise
  • MultEQ Auto setup and Room EQ for quick and accurate calibration
  • Supports DVD-Audio and SACD
  • Compatible Surround Decoding:
    • Dolby Digital: 5.1 multi-channel digital surround format
    • Dolby Digital Plus: 5.1 multi-channel digital surround format with enhancements
    • Dolby TrueHD: a lossless coding that supports up to 8 channels of multi-channel surround that is true to the original source bit-for-bit
    • dts: 5.1 multi-channel digital surround format used in multiple grades of applications
    • dts-HD Master Audio: a lossless audio format compatible with up to 7.1-channels and up to 96,000 Hz
Advanced Video Features:
  • HDMI version 1.3 transfers 1080p at 24, 30, and 60 frames per second
  • HDMI version 1.4 compatible with higher bandwidth and ethernet via HDMI
  • Supports Deep Color up to 36-bit and xvYCC Color Space
  • Video select allows you to change video source while listening to a different audio source
  • Video conversion allows all analog inputs to pass through and output with any connection type
  • Video up-conversion scales all inputted signals to higher resolution and out HDMI
  • High-bit I/P Converter eliminates distortion found in lower resolutions
  • Minimal signal path designed to transfer signal with minimal degradation
  • On-screen menu displays adjustments for easy adjustments
  • 6 HDMI
  • 2 Component Video
  • 2 S-Video
  • 5 Composite Video
  • 9 Analog Audio (including tuner)
  • 2 Digital Optical
  • 2 Digital Coaxial
  • 1 Ethernet
  • 1 USB 2.0
  • 1 RS-232C
  • 1 Microphone
  • 1 Remote Control
  • 1 HDMI
  • 1 Component Video
  • 3 Composite
  • 2 Rear Analog Audio
  • 2 Rear Analog Audio/Video
  • 1 Analog Audio REC
  • 1 Audio Preout (2nd zone)
  • 1 Digital Optical
  • 2 Subwoofer preamplifier outputs
  • 1 Headpphone
  • Multi-Room Rear Output

Product History:

Denon AVR-991 thumbnail
(newest, current model)
Denon AVR-990 thumbnail
(previous model, replaced by Denon AVR-991)

General Specifications

Maximum Watts per Channel
This is the maximum amount of watts per channel that the receiver is able to produce.
125 watts
THD (Total Harmonic Distortion)
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
Supported Channels
This is the supported channels of audio for the receiver. A 5.1 channel receiver will produce audio into 5 speakers and 1 subwoofer. A 7.1 audio channel receiver will produce audio into 7 speakers and 1 subwoofer. It is important that the receiver and the speaker system are compatible.
THX Certified
THX is a high-fidelity, high-quality, sound reproduction standard. Its superior audio quality is reserved for only the best. In order for a unit or product to be THX certified, strict qualifications must be met to insure the highest quality. If the unit is THX certified, you are sure to be impressed.
Supported Sound Processing
This is the type of audio processing that the receiver is capable of.
Dolby Digital
Dolby Digital EX
Dolby Pro Logic II
Dolby TrueHD
DTS 96/24
DTS Neo:6
iPod Integration
This means that the receiver is capable of having a iPod connected to it. Some units will include a iPod docking station, while others require an additional connector and dock.
Yes (Accessory Required and Sold Separately)
  • Denon ASD-11R: Wired Control Dock for iPod
  • Denon ASD-3N: iPod Networking Client Dock with Internet Radio Capability
  • Denon ASD-3W: Control Dock for iPod with Wi-Fi Connectivity and Internet Radio Playback
Multi-Zone means that the receiver is capable of playing multiple sources in multiple locations. That means that you can listen to different audio sources in different rooms in a house. The number listed is the number of different locations (or zones) that the receiver is able to send the audio to. This is sometimes called "Multi-Room".
OSD (On Screen Display)
Indicates that the unit has menus and features that display on the screen. Typically, on-screen menus allow users to adjust audio and video settings easier.
HDMI Switching
HDMI switching allows for multiple HDMI connections to be connected at a single time. The receiver can switch between the various HDMI inputs.

Please note that some HDMI switching capable receivers do not switch audio and require an additional cable for that.

HDMI Up-Conversion
HDMI Up-Conversion technology improves the image quality of regular DVDs, allowing them to play up to 1080p resolution.
AM/FM Tuner
Most in-dash CD players have AM/FM playback allowing you listen to your favorite local radio stations.
Satellite Radio
This feature signifies whether or not the receiver is compatible with XM or Sirius Satellite Radio. "Optional" means while the receiver is capable of SIRIUS/XM playback and connectivity, you will still need to purchase an additional satellite tuner, adapter, and/or antenna.
Optional - SIRIUS (Accessory required and sold separately)
Remote Control
Allows control of specific features and functions from a remote control. Typically they are used to prevent button wear on your radio, or to allow easier navigation of menus.
Primary Color
This is the main color of the item.
The width of the item from left to right (side-to-side) measured in inches.
The height of the item, measured from top to bottom, in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.

Receiver Inputs

Composite (RCA) Stereo Inputs
This is the number of composite (RCA) outputs on the unit.
HDMI Inputs
This is the number of HDMI inputs that the unit is capable of accepting.
Optical Digital Audio Inputs
This is the number of digital optical audio signals the receiver accepts.
Coaxial Digital Audio Inputs
This is the number of coaxial digital audio inputs that the receiver accepts.
Component Video Inputs
This is the number of component video (y,pb,pr) inputs that the unit is capable of accepting.
Front Panel Inputs
If the receiver has any front panel inputs, they will be listed here.
1 Set of Composite (RCA) Inputs
3.5mm Stereo Jack
Uses a 3.5mm stereo jack to connect to an audio source. This is the common size found on most CD and Mp3 players, as well as most home computers.
USB Input
This feature refers to whether or not the receiver features an input to connect a USB device via standard USB or mini-USB. The USB input may be a connection on the front or rear of the unit with an extension cable for connecting devices to the receiver. Some units have an optional input that allows for a USB adapter to be purchased separately and used with the unit.

Receiver Outputs

Composite (RCA) Stereo Outputs
This is the number of composite stereo, also known as RCA, outputs.
HDMI Outputs
This is the number of HDMI outputs that the receiver is capable of.
Component Video Outputs
This is the number of component video (y,pb,pr) outputs of the receiver.
Subwoofer Outputs
This is the number of subwoofer outputs that the receiver has.
Headphone Output
If the unit is capable of outputting audio to a pair of headphones, this is the type of jack that makes the connection.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating



Denon Avr-991

June 14, 2011

Great amplifier. Many features. Phono input,noble feature for those who still listen to records.Overall, I have to give a 10+.

4 of 5 found this helpful

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Des Moines, IA

Sounds great

October 30, 2011

A neighbor has one and it sounded great during Thor in blu ray with Klipsh speakers.

2 of 3 found this helpful

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Accessory Tools and Products

Accessories added

Hitron SPW1650

50 ft. of 16 Gauge OFC speaker wire with a clear insulating jacket.

Your Price $5.99

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Denon AVR-991

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Denon AVR-991

7.1 Chan. 3D-Ready A/V Home Theater Receiver with HDMI 1.4a Support and Audyssey MultEQ Correction


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Hitron SPW1650

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