Denon DN-A850 Manual

The Denon DN-A850 is a high-performance audio amplifier designed for professional use. It features advanced circuitry, multiple input options, and robust power output, making it ideal for various audio applications. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: High-performance audio amplifier, multiple input options, robust power output, remote control capability.

Feature	Description
Multiple Inputs	Supports various audio sources including RCA, XLR, and optical inputs.
Power Output	Delivers high power output suitable for large venues.
Remote Control	Allows for convenient operation from a distance.
Protection Circuitry	Prevents damage from overheating or short circuits.
Adjustable Gain	Allows for fine-tuning of audio levels.

Installation

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

1. Connect audio sources: Use appropriate cables for RCA, XLR, or optical inputs.
2. Connect speakers: Ensure correct polarity when connecting speaker wires.
3. Plug into AC power: Use the provided power cord.

WARNING! Amplifier can get hot; ensure proper ventilation.

First-Time Setup

Power on the amplifier; follow the setup instructions.

1. Select input source: Use the input selector switch.
2. Adjust volume: Set initial volume to a low level.
3. Test audio: Play a test signal to ensure proper operation.

CAUTION! Start with low volume to avoid speaker damage.

Specifications

• Power Output: 100W per channel at 8 ohms.
• Frequency Response: 20Hz - 20kHz.
• Input Impedance: 10k ohms.
• Dimensions: 17.1 x 3.5 x 12.6 inches.
• Weight: 25 lbs.
• Power Supply: 120V AC, 60Hz.

Controls and Settings

Access settings via the front panel. Controls include power, volume, input selection, and gain adjustment.

Remote: Power, volume control, input selection.

Audio settings: Adjust bass, treble, and balance as needed.

Connecting Devices

Connect audio sources using appropriate cables. Ensure all connections are secure.

1. Turn off the amplifier and devices before connecting.
2. Match cables to ports (e.g., RCA to RCA).
3. Select input via the input selector switch.

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

Operating the Amplifier

Use the front panel or remote control to operate the amplifier.

1. Power on: Press the power button.
2. Select input: Use the input selector.
3. Adjust volume: Use the volume knob or remote control.

WARNING! Avoid sudden volume changes to protect speakers.

Accessibility Features

Remote control accessibility for ease of use. Ensure clear line of sight to the amplifier.

Care & Cleaning

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

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

Symptom	Possible Cause	Corrective Action
No power	Power cable disconnected	Check power connections and outlet.
No sound	Incorrect input selected	Verify input source and connections.
Distorted sound	Volume too high	Reduce volume and check speaker connections.
Overheating	Poor ventilation	Ensure adequate airflow around the amplifier.

Reset: Refer to the user manual for reset instructions.

Service: Contact Denon support for assistance.