Denon PMA 850 Manual

The Denon PMA 850 is a high-performance integrated amplifier designed to deliver superior audio quality. With a robust build and advanced circuitry, it offers a range of features including multiple input options, tone control, and a powerful output stage. 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. Operating the Amplifier 8. Maintenance 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Integrated amplifier, multiple input options, tone control, headphone output, remote control.

Feature	Description
Multiple Inputs	Supports various audio sources including CD, phono, and auxiliary.
Tone Control	Adjust bass and treble settings for optimal sound.
Headphone Output	For private listening with compatible headphones.
Remote Control	Convenient operation from a distance.
Power Output	High power output for driving speakers effectively.

Installation

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

Connect audio sources: Use RCA cables for CD, phono, and auxiliary inputs.
Connect speakers: Use speaker wire to connect to the output terminals.
Plug into AC power.

WARNING! Amplifier can get hot; ensure proper ventilation.

First-Time Setup

Power on the amplifier; follow the setup instructions.

Select input source: Use the input selector to choose the desired source.
Adjust volume: Use the volume knob to set the desired listening level.
Fine-tune sound: Adjust tone controls as needed.

CAUTION! Start with low volume to avoid speaker damage.

Specifications

Power Output: 70W per channel (8 ohms).
Frequency Response: 5 Hz - 100 kHz.
Input Impedance: 47 kΩ (phono).
Signal-to-Noise Ratio: 100 dB.
Dimensions: 440 x 150 x 360 mm.
Weight: 8 kg.

Controls and Settings

Access controls via the front panel or remote. Key controls include volume, input selector, and tone controls.

Remote: Volume, input selection, mute, and tone adjustments.

Connecting Devices

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

Turn off the amplifier before connecting devices.
Match cables to appropriate inputs.
Power on the amplifier and select the input source.

Tip: Use high-quality cables for best audio performance.

Operating the Amplifier

Adjust volume and tone settings to achieve desired sound quality.

Power on the amplifier using the front panel or remote.
Select the input source using the input selector.
Adjust volume to a comfortable level.

WARNING! Avoid sudden volume changes to protect speakers.

Maintenance

Regularly clean the amplifier with a soft, dry cloth. Avoid using liquids.

CAUTION! Ensure the amplifier is unplugged before cleaning.

Regulatory Information

Complies with FCC regulations for audio equipment. For support, visit the official Denon website or contact customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound	Incorrect input/source	Check input selection and connections.
Distorted sound	Overdriven volume	Reduce volume and check speaker connections.
Remote not working	Batteries	Replace batteries in the remote control.
Amplifier overheating	Poor ventilation	Ensure adequate space around the amplifier for airflow.

Service: For further assistance, contact Denon customer support.