Introduction
The Denon PMA-390RE-SP is a high-performance integrated stereo amplifier designed to deliver exceptional audio quality. This manual provides essential information for the safe and optimal use of your amplifier, including setup, operation, maintenance, and troubleshooting.
Safety Instructions
Please read and understand all safety instructions before operating the unit. Keep this manual for future reference.
- Power Source: Connect the unit only to a 100V AC, 50/60Hz power supply.
- Ventilation: Ensure adequate space around the unit for proper ventilation. Do not block ventilation openings.
- Moisture: Do not expose the unit to rain, moisture, or excessive humidity. Keep liquids away from the unit.
- Heat: Avoid placing the unit near heat sources such as radiators, heat registers, stoves, or other heat-producing appliances.
- Servicing: Do not attempt to service this product yourself. Refer all servicing to qualified service personnel. Opening the casing may result in electric shock.
- Cleaning: Disconnect the power cord before cleaning. Use only a dry cloth.
Product Overview
Front Panel
The front panel provides access to essential controls for operating your amplifier.
- Power Button: Turns the unit on or off.
- Phones Jack: Connect headphones for private listening.
- Loudness Button: Engages or disengages the loudness compensation circuit.
- Bass/Treble Knobs: Adjust the low and high frequency response.
- Balance Knob: Adjusts the left/right channel balance.
- Source Direct Button: Bypasses the tone control circuits for a purer audio signal.
- Volume Knob: Controls the overall output volume.
- Input Selector Knob: Selects the desired audio input source (PHONO, CD, TUNER, AUX, NETWORK, RECORDER).
Rear Panel
The rear panel provides all the necessary connections for your audio components and speakers.
- SIGNAL GND Terminal: For connecting the ground wire of a turntable.
- REMOTE CONTROL IN/OUT: For connecting to other Denon components for synchronized operation.
- INPUT Terminals (PHONO, CD, TUNER, AUX, NETWORK): RCA input jacks for connecting various audio sources.
- RECORDER Terminals (PB/REC): RCA input/output jacks for connecting a recording device.
- PRE OUT Terminals: RCA output jacks for connecting to a separate power amplifier or subwoofer.
- SPEAKER SYSTEMS (A/B): High-grade speaker terminals for connecting two pairs of speakers.
- AC OUTLETS: Switched AC outlets for connecting other audio components (Total 100W/1.0A max).
Remote Control (RC-1173)
The included remote control allows convenient operation of the amplifier from a distance.
- Power Buttons: Separate buttons for AMP POWER and other component power.
- Input Selector Buttons: Direct access buttons for CD, PHONO, TUNER, AUX, NETWORK, RECORDER.
- Volume Up/Down: Adjusts the volume level.
- Mute Button: Temporarily silences the audio output.
- Source Direct Button: Activates/deactivates Source Direct mode.
- Other Function Buttons: Additional buttons for controlling compatible Denon components (e.g., CD player, tuner).
Setup
Placement
Place the amplifier on a stable, level surface. Ensure there is sufficient space around the unit (at least 10 cm on top and sides, 5 cm at the rear) for proper heat dissipation and ventilation. Avoid placing it in direct sunlight or near heat sources.
Speaker Connection
Connect your speakers to the SPEAKER SYSTEMS terminals on the rear panel. The PMA-390RE-SP supports two pairs of speakers (A and B).
- Ensure the amplifier is turned off and unplugged from the power outlet.
- Connect the positive (+) terminal of your speaker to the red (+) terminal on the amplifier, and the negative (-) terminal of your speaker to the black (-) terminal on the amplifier.
- If using only one pair of speakers, connect them to either the A or B terminals. The speaker impedance should be between 4 and 16 ohms.
- If using two pairs of speakers (A and B simultaneously), the impedance for each pair must be between 8 and 16 ohms.
- Ensure all connections are secure to prevent short circuits.
Audio Source Connection
Connect your audio components (CD player, tuner, network player, turntable, etc.) to the corresponding input jacks on the rear panel using RCA audio cables.
- CD Player: Connect to the 'CD' input terminals.
- Tuner: Connect to the 'TUNER' input terminals.
- Network Player/Other Analog Source: Connect to the 'NETWORK' or 'AUX' input terminals.
- Turntable: Connect to the 'PHONO' input terminals. If your turntable has a ground wire, connect it to the 'SIGNAL GND' terminal on the amplifier.
- Recording Device: Connect the input of your recording device to the 'RECORDER REC' terminals and the output of your recording device to the 'RECORDER PB' terminals.
- External Power Amplifier/Subwoofer: Connect to the 'PRE OUT' terminals.
Power Connection
After all audio and speaker connections are made, plug the amplifier's power cord into a wall outlet. You can also use the switched AC OUTLETS on the rear panel to power other audio components, ensuring their total power consumption does not exceed 100W/1.0A.
Operation
Turning On/Off
Press the Power button on the front panel or the AMP POWER button on the remote control to turn the amplifier on or off.
Selecting an Input Source
Rotate the Input Selector knob on the front panel or press the corresponding input button (e.g., CD, PHONO) on the remote control to select the desired audio source.
Adjusting the Volume
Turn the large Volume knob on the front panel clockwise to increase volume and counter-clockwise to decrease it. Alternatively, use the Volume Up (+) and Volume Down (-) buttons on the remote control.
Tone Controls (Bass, Treble, Balance)
Use the Bass and Treble knobs to fine-tune the low and high frequencies of the audio. The Balance knob adjusts the relative volume between the left and right channels.
Loudness Function
Press the Loudness button on the front panel to activate or deactivate the loudness compensation. This function enhances bass and treble at low volume levels to maintain a full sound.
Source Direct Mode
Press the Source Direct button on the front panel or remote control to bypass the tone control and loudness circuits. This provides a purer, uncolored audio signal, ideal for high-fidelity listening.
Headphone Use
Connect your headphones to the Phones jack on the front panel. When headphones are connected, the speaker output will be muted.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your amplifier.
- Cleaning: Wipe the unit with a soft, dry cloth. Do not use abrasive cleaners, waxes, or solvents as they may damage the finish.
- Ventilation: Regularly check that the ventilation openings are not obstructed by dust or debris. Use a soft brush or vacuum cleaner to gently clear any blockages.
- Connections: Periodically check all cable connections to ensure they are secure and free from corrosion.
Troubleshooting
If you experience problems with your amplifier, refer to the following common issues and solutions before contacting customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cord not connected; Power outlet faulty; Unit in standby mode. | Ensure power cord is securely plugged in. Try a different power outlet. Press the power button to turn on. |
| No sound | Incorrect input selected; Volume too low; Speakers not connected; Mute function active; Headphones connected. | Select the correct input source. Increase volume. Check speaker connections. Deactivate mute. Disconnect headphones. |
| Distorted sound | Poor cable connections; Source device issue; Speaker impedance mismatch. | Check all audio cable connections. Test with a different audio source. Ensure speaker impedance matches amplifier specifications. |
| Remote control not working | Batteries depleted; Obstruction between remote and unit; Incorrect remote mode. | Replace batteries. Remove any obstructions. Ensure remote is pointed at the unit's sensor. |
Specifications
Detailed technical specifications for the Denon PMA-390RE-SP integrated amplifier.
| Feature | Specification |
|---|---|
| Model Number | PMA-390RE-SP |
| Dimensions (W x H x D) | 43.4 x 12.1 x 30.8 cm (17.1 x 4.8 x 12.1 inches) |
| Weight | 7.1 kg (15.65 lbs) |
| Power Supply | AC 100V, 50/60Hz |
| Channels | 2 |
| Speaker Impedance (A or B) | 4 - 16 Ω |
| Speaker Impedance (A + B) | 8 - 16 Ω |
| Analog Audio Inputs | 5 (PHONO, CD, TUNER, AUX, NETWORK) |
| PHONO Input | 1 |
| REC Out | 1 |
| PRE Out | 1 |
| Headphone Output | 1 |
| Frequency Response | Up to 100kHz wide range playback capability |
| Amplifier Circuit | Advanced HC (High Current) Single Push-Pull circuit |
| Construction | Direct Mechanical Ground Construction |
| Speaker Terminals | High-grade |
Warranty and Support
For warranty information and customer support, please refer to the warranty card included with your product or visit the official Denon website. Keep your purchase receipt as proof of purchase for warranty claims.