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Denon AVR-391

5.1 Chan. 3D-Ready A/V Home Theater Receiver with HDMI 1.4a Support and Dolby ProLogic II


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Denon AVR-391

5.1 Chan. 3D-Ready A/V Home Theater Receiver with HDMI 1.4a Support and Dolby ProLogic II


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General Features:
  • 5.1 Channel 3D-Ready A/V Home Theater Receiver
  • 1080p-compatible HDMI digital audio/video switching (4 in, 1 out)
  • Audio playback featuring Dolby TrueHD, DTS-HD Master Audio, and Dolby Pro Logic IIx
  • HDMI 1.4a with support for 3D pass-through
  • 3.5mm stereo audio jack on the front panel allows quick and easy connection to your portable audio device
  • Plenty of HDMI inputs for connecting your entire HD system together
  • Optimized picture quality for standard definition (SD) and high definition (HD) with digital noise reduction
  • Compressed Audio Restorer function completely re-constructs the full audio frequency range
  • Decode the latest surround sound formats found on many Blu-ray discs
  • Built-in AM/FM tuners with 56 presets
  • Capable of passing 3D video signals from a 3D Blu-ray player to a 3D TV
  • Connect up to four high-definition sources for convenient switching
  • Audysseys MultiEQ room acoustic measurement technology analyzes the room that the unit is in and automatically optimizes the sound to be the best possible
  • Audyssey Dynamic Volume mode to keep listening levels steady
  • Ensures smooth and rich sound, no matter what the volume level
  • 192kHz/24-bit digital-to-analog converters for all channels
  • 1-year Manufactures warranty
Audio Features:
  • Stereo RMS Power: 375W ( 75W x 5 channels @ .08% THD)
  • 5-Channel amplifier with low impedance drive capability
  • Audio Signal Delay (Sync. Audio with Video signal)
  • Virtual Surround Mode – For 2 speakers headphones
  • Multi-Channel stereo mode
  • 2 DSP effect modes
  • Auto Surround Mode (Analog or Digital Input Type)
  • Compatible Surround Decoding:
    • Dolby Digital Surround EX decoding
    • DTS ES Discrete 6.1 decoding
    • DTS ES Matrix 6.1 Decoding
    • DTS Neo:6 Stereo-to-Surround Cinema and Music Modes
    • DTS 96/24 5.1 for DVD-Video Processing
    • Dolby TrueHD
    • Dolby Digital Plus
    • DTS-HD Master Audio
Video Features:
  • HDMI version 1.4 transfers 1080p resolution
  • HDMI audio/video repeater function
  • HDMI deep color support 36 bit
  • HDMI xvYCC color space support
  • 4 HDMI v1.4
  • 1 S-Video
  • 1 Digital Optical
  • 1 Digital Coaxial
  • 5 Analog Audio (including tuner)
  • 3 Composite Video
  • 4 Audio
  • 1 HDMI
  • 1 S-Video Monitor
  • 1 Composite Video
  • 1 Subwoofer
  • 2 Preamps
  • 2 Main Speaker Pairs

General Specifications

RMS Watts per Channel
This is the RMS rating, or continuous power rating that the receiver is able to produce per channel.
75 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.
Video Processing
This is the devices processor that is dedicated to video.
Not Specified by Manufacturer
Audio Processing
This is the devices processor that is dedicated to video.
Not Specified by Manufacturer
Supported Sound Processing
This is the type of audio processing that the receiver is capable of.
Dolby Digital EX
Dolby Digital Plus
Dolby Pro Logic II
Dolby TrueHD
DTS 96/24
DTS Neo:6
DTS-HD Master Audio
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.
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".
No (Primary Room Only)
Multi-Source Playback
This means that the receiver will offer an independent source per zone. This enables the user to have different audio playing in different rooms when connected properly.
Speaker A/B Switching
Allows a secondary set of speakers to be connected to the receiver. Depend the receiver, it can offer individual or combination playback of speakers A and B. For more details on this, please see the description or the product manual.
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.
Yes - 1080p
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.
HD Radio
This feature refers to whether or not the receiver is capable of receiving high-definition digital HD Radio broadcasts by either a built-in HD Radio tuner, or more commonly with the purchase of an optional HD Radio tuner box. Receivers which are HD Radio Ready generally require an additional purchase of a separate tuner.
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.
Energy Star Compliant
Energy Star is an internationally recognized standard for energy efficient products. These electronics save 20-30% on energy usage.
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.
Multi-Channel Input
This is the type of multi-channel inputs that the device is capable of receiving.
Phono Input
This is a dedicated input for turntables. It connects the turntable to the receiver without needing a outboard phono preamp.
Front Panel Inputs
If the receiver has any front panel inputs, they will be listed here.
1 Set of Component (Y,Pb,Pr) 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.
3.5mm (1/8") Stereo Jack

Warranty and Return Policy

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

Summary of Customer Ratings & Reviews

Rating Distribution

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Average Attribution Rating


north dakota


September 25, 2010

Denon makes great receivers. They can be difficult to set up but they are clean sounding. I have this receiver running Boston acoustic in-wall speakers with a Boston cs-sub10 subwoofer. sounds fantastic after i got it setup properly. This receiver is all you really need. If you do buy a higher end Denon get one with more power per channel. Otherwise this is a great unit.

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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

Hitron SPW1250

50 ft. of 12 Gauge OFC speaker wire with a clear insulating jacket.

Your Price $12.99

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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-391