Denon Receiver Manual AVR 391

The Denon AVR-391 is a versatile 5.1-channel AV receiver that delivers high-quality audio and video performance. It supports various audio formats, including Dolby TrueHD and DTS-HD Master Audio, and features multiple HDMI inputs for connecting various devices. The receiver also includes built-in AM/FM radio, a user-friendly interface, and advanced audio calibration technology to optimize sound in any room. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Playing Audio Media 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 5.1-channel audio output, multiple HDMI inputs, AM/FM tuner, advanced audio calibration, and user-friendly interface.

FeatureDescription
HDMI InputsMultiple inputs for connecting Blu-ray players, gaming consoles, and more.
Audio FormatsSupports Dolby TrueHD, DTS-HD Master Audio, and more.
AM/FM TunerBuilt-in tuner for radio listening.
Calibration TechnologyAutomatically adjusts audio settings for optimal sound.
Remote ControlConvenient remote for easy operation.
Speaker SetupFlexible speaker configuration options.
Power OutputHigh power output for immersive sound experience.

Installation

Unpack and inspect contents. Place the receiver on a stable surface.

  1. Connect speakers: Use the appropriate speaker terminals for connections.
  2. Connect video sources: Use HDMI cables for video devices.
  3. Connect to power: Plug into a suitable AC outlet.

WARNING! Ensure all connections are secure to avoid damage.

First-Time Setup

Power on the receiver; follow on-screen prompts for initial setup.

  1. Program radio stations: Use the tuner to scan for available stations.
  2. Set audio preferences: Adjust settings for optimal sound quality.
  3. Configure speaker settings: Use the setup menu to configure speaker distances and levels.

CAUTION! Ensure stable surface; avoid blocking ventilation.

Specifications

Controls and Settings

Access settings via the on-screen display (OSD) or front panel controls.

Remote: POWER, INPUT, VOLUME, TUNING, MENU, and more.

Audio settings: Adjust bass, treble, balance, and surround sound options.

Connecting Devices

Connect devices using HDMI, optical, or analog audio inputs.

  1. Turn off the receiver and devices before connecting.
  2. Match cables to ports (e.g., HDMI to HDMI).
  3. Select input via the remote control.

Tip: Ensure all devices are powered off before making connections.

Playing Audio Media

Supports various audio formats including MP3, WAV, and more.

  1. Insert media: Use the appropriate input for playback.
  2. Play: Use the remote control to select and play audio.
  3. Stop: Press STOP to halt playback.
  4. Adjust volume: Use the volume control on the remote.

WARNING! Do not force connections; ensure compatibility.

Accessibility Features

Closed Captions: Enable in the settings menu for compatible media.

Care & Cleaning

Unplug before cleaning. Use a dry cloth only; avoid liquids.

CAUTION! Do not spray liquids; keep away from heat and moisture.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © 2026 Denon; trademarks of Denon Electronics.

Troubleshooting

SymptomPossible CauseCorrective Action
Remote does not workObstacles/batteriesRemove obstacles; point at IR sensor; install fresh batteries.
No soundConnections/muteEnsure receiver is on; check connections; adjust mute.
Picture not clearSettingsAdjust video settings in the menu.
Channels not programmingAntenna/menuUse auto-program in menu; ensure antenna connected.
Device not recognizedConnection issueCheck cables and connections; restart devices.

Reset: Menu > System > Reset if available.

Service: 1-800-ABC-DEF; www.denon.com

Denon AVR 391 User Manual © - All Rights Reserved 2026