1. Introduction
Thank you for choosing the Marantz Model 40n Integrated Stereo Amplifier. This amplifier is designed to deliver exceptional audio performance with modern connectivity options, including HEOS Built-in for seamless music streaming. This manual provides essential information for setting up, operating, and maintaining your Model 40n to ensure optimal performance and longevity.
2. Important Safety Instructions
Please read these safety instructions carefully before using your Marantz Model 40n. Keep this manual for future reference.
- Power Source: Connect the unit only to an AC outlet of the voltage specified on the rear panel.
- Ventilation: Ensure adequate ventilation. Do not block ventilation openings. Maintain a minimum distance of 10 cm (4 inches) from other objects.
- Water and Moisture: Do not expose the unit to rain, moisture, or excessive humidity. Do not place objects filled with liquids, such as vases, on the unit.
- Heat: Avoid placing the unit near heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
- Cleaning: Unplug the unit from the wall outlet before cleaning. Use a dry cloth only.
- Servicing: Do not attempt to service this product yourself. Refer all servicing to qualified service personnel.
- Cables: Protect power cords from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
3. Package Contents
Verify that all items are present in the package:
- Marantz Model 40n Integrated Stereo Amplifier
- Remote Control Unit
- Power Cord
- FM/AM Antennas (if applicable to region)
- Quick Start Guide
- Safety Instructions
4. Product Overview
4.1 Front Panel
The front panel provides access to essential controls and indicators:
- Power Button (⑂): Turns the unit on or off.
- Input Selector: Rotates to choose the desired audio input source.
- Source Direct: Bypasses tone controls for the purest audio signal.
- Bass/Treble/Balance Controls: Adjusts audio characteristics.
- Volume Knob: Controls the overall output volume.
- Display: Shows current input, volume level, and other status information.
- Headphone Jack: For private listening with headphones.
4.2 Rear Panel
The rear panel houses all connectivity options:
- Speaker Terminals: Connect your passive loudspeakers.
- Analog Audio Inputs (CD, LINE, RECORDER IN): For connecting external analog audio sources.
- PHONO Input (MM): For connecting a turntable with a moving magnet cartridge. Includes a ground terminal.
- Digital Audio Inputs (COAXIAL, OPTICAL): For connecting digital audio sources like CD players or TVs.
- HDMI ARC Input: For connecting to a TV to receive audio.
- NETWORK Port (Ethernet): For wired network connection.
- USB-A Port: For connecting USB storage devices.
- Bluetooth/Wi-Fi Antenna Terminals: For wireless connectivity.
- PRE OUT: For connecting to an external power amplifier.
- POWER AMP IN: Allows the Model 40n to function as a power amplifier.
- SUBWOOFER OUT: For connecting an active subwoofer.
- REMOTE CONTROL IN/OUT: For integration into a custom control system.
- AC IN: Power cord connection.
5. Setup
5.1 Placement
Place the Model 40n on a stable, level surface with adequate ventilation. Avoid direct sunlight, heat sources, and areas with high humidity or dust. Ensure there is sufficient space around the unit for proper airflow.
5.2 Connecting Speakers
The Model 40n supports a speaker impedance range of 4-16 ohms. Use high-quality speaker cables for optimal sound.
- Turn off the Model 40n and unplug the power cord.
- Connect the positive (+) terminal (red) of the left speaker to the L+ terminal on the amplifier.
- Connect the negative (-) terminal (black) of the left speaker to the L- terminal on the amplifier.
- Repeat for the right speaker, connecting to the R+ and R- terminals.
- Ensure all connections are secure and there are no stray wire strands touching other terminals.
5.3 Connecting Audio Sources
Connect your audio components to the appropriate input terminals on the rear panel.
- CD Player: Use RCA cables to connect the CD player's analog output to the CD input terminals.
- Other Analog Sources (e.g., Tuner, Cassette Deck): Use RCA cables to connect to the LINE or RECORDER IN terminals.
- Turntable: Connect your turntable's RCA outputs to the PHONO input terminals. If your turntable has a ground wire, connect it to the SIGNAL GND terminal. Ensure your turntable has a Moving Magnet (MM) cartridge, as the Model 40n's phono input is designed for MM.
- Digital Sources (e.g., TV, Blu-ray Player): Use an optical or coaxial digital cable to connect to the OPTICAL or COAXIAL DIGITAL IN terminals.
- TV (HDMI ARC): Connect an HDMI cable from your TV's HDMI ARC port to the HDMI ARC input on the Model 40n. This allows your TV to send audio to the amplifier.
- USB Storage: Insert a USB drive into the USB-A port for playing audio files.
5.4 Network Connection
The Model 40n supports both wired and wireless network connections for streaming services and firmware updates.
- Wired Connection: Connect an Ethernet cable from your router to the NETWORK port.
- Wireless Connection (Wi-Fi): Screw the supplied Wi-Fi/Bluetooth antennas onto the corresponding terminals. Follow the on-screen instructions or use the HEOS app for initial Wi-Fi setup.
5.5 Power Connection
Once all audio and network connections are made, connect the supplied power cord to the AC IN terminal on the rear panel and then to a wall outlet.
6. Operating Instructions
6.1 Basic Operation
- Power On: Press the power button on the front panel or the remote control.
- Select Input: Rotate the Input Selector knob or use the remote control to choose your desired audio source (e.g., CD, PHONO, HDMI ARC, HEOS).
- Adjust Volume: Rotate the Volume knob or use the Volume +/- buttons on the remote control to set the listening level.
6.2 Tone Controls and Source Direct
- Bass/Treble/Balance: Use the corresponding knobs on the front panel to fine-tune the audio output to your preference.
- Source Direct: Engage the Source Direct switch to bypass the bass, treble, and balance circuits. This provides a purer, uncolored audio signal, ideal for audiophile listening.
6.3 Music Streaming with HEOS Built-in
The Model 40n features HEOS Built-in, allowing access to a wide range of streaming services and multi-room audio capabilities.
- Download HEOS App: Download the free HEOS app to your smartphone or tablet from the App Store or Google Play.
- Setup HEOS: Follow the in-app instructions to connect your Model 40n to your home network and set up your streaming accounts (e.g., Spotify, Apple Music, Tidal).
- Stream Music: Use the HEOS app to browse and play music from various online services, your local music library, or other HEOS-enabled devices.
6.4 AirPlay 2 and Bluetooth
- AirPlay 2: From an Apple device, select the Model 40n as an AirPlay speaker to stream audio.
- Bluetooth: Enable Bluetooth on your mobile device, search for 'Marantz Model 40n', and pair.
6.5 Voice Control
The Model 40n supports voice control via Amazon Alexa, Google Assistant, and Apple Siri when integrated with compatible devices.
- Enable Skill/Action: Enable the Marantz HEOS skill/action in your Amazon Alexa or Google Home app.
- Link Account: Link your HEOS account within the respective voice assistant app.
- Use Commands: You can now use voice commands to control playback, volume, and input selection. For Siri, use AirPlay 2 from your Apple device.
7. Maintenance
To ensure the longevity and optimal performance of your Model 40n, follow these maintenance guidelines:
- Cleaning: Disconnect the power cord before cleaning. Use a soft, dry cloth to wipe the exterior surfaces. Do not use abrasive cleaners, solvents, or chemical sprays, as they may damage the finish.
- Ventilation: Regularly check that the ventilation openings are not blocked by dust or debris. Use a soft brush or vacuum cleaner with a brush attachment to gently clear any obstructions.
- Connections: Periodically check all cable connections to ensure they are secure. Loose connections can lead to signal degradation or intermittent issues.
- Storage: If storing the unit for an extended period, unplug it from the power outlet and cover it to protect against dust.
8. Troubleshooting
If you encounter issues with your Model 40n, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cord disconnected; Power outlet faulty | Ensure power cord is securely connected; Try a different outlet. |
| No sound | Incorrect input selected; Speaker cables loose; Volume too low; Mute activated | Select correct input; Check speaker connections; Increase volume; Deactivate mute. |
| Poor sound quality | Poor cable connections; Source Direct enabled; Speaker phase incorrect | Check all audio cable connections; Disable Source Direct to use tone controls; Verify speaker polarity (+ to + and - to -). |
| Cannot connect to network/HEOS | Wi-Fi antennas not connected; Incorrect Wi-Fi password; Router issue | Ensure antennas are attached; Re-enter Wi-Fi password in HEOS app; Restart your router and the Model 40n. |
| Remote control not working | Batteries depleted; Obstruction between remote and unit | Replace batteries; Remove any obstructions; Ensure remote is pointed at the unit's IR sensor. |
If the problem persists after trying these solutions, please contact Marantz customer support.
9. Specifications
Key technical specifications for the Marantz Model 40n Integrated Stereo Amplifier:
- Brand: Marantz
- Model Number: MODEL40N
- Number of Channels: 2
- Output Power: 70 watts per channel (8 ohms, 20 Hz - 20 kHz, 0.07% THD)
- Interface Type: USB
- Material: SECC, Aluminum
- Product Dimensions: 17 x 17.4 x 5.1 inches (43.18 x 44.2 x 12.95 cm)
- Item Weight: 36.8 pounds (16.7 kg)
- UPC: 747192135959
- Connectivity: HDMI ARC, Phono (MM), Analog RCA, Optical, Coaxial, USB-A, Ethernet, Wi-Fi, Bluetooth, HEOS Built-in
- Voice Control: Works with Amazon Alexa, Google Assistant, Apple Siri
- Date First Available: February 24, 2022
10. Warranty and Support
Marantz products are designed for reliability and performance. For warranty information, please refer to the warranty card included with your product or visit the official Marantz website.
For technical support, product registration, or service inquiries, please visit the Marantz support page:
You can also find frequently asked questions and additional resources on their website.
