Marantz Arch Manual

The Marantz Arch is a high-performance audio receiver featuring advanced audio processing, multi-room connectivity, HDMI connectivity with 4K/8K pass-through, built-in streaming services, Wi-Fi and Bluetooth connectivity, HEOS multi-room audio technology, Audyssey room calibration, and support for Dolby Atmos and DTS:X. Powered by 120V AC, 60Hz. 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. Audio Streaming 8. Network Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: High-power amplifier section, Network connectivity module, HDMI board with 8K support, HEOS multi-room technology, Audyssey calibration microphone.

FeatureDescription
HDMI Inputs8 HDMI inputs with 8K/60Hz and 4K/120Hz pass-through
Network ConnectivityBuilt-in Wi-Fi and Ethernet for streaming services
BluetoothWireless audio streaming from compatible devices
HEOS TechnologyMulti-room audio synchronization and control
Audyssey Room CorrectionAutomatic speaker calibration and room optimization
Audio FormatsDolby Atmos, DTS:X, Auro-3D compatible
Power Output125 watts per channel (8 ohms, 20Hz-20kHz)
Zone 2 OutputSecond zone audio capability
Phono InputDedicated input for turntable connection
Setup AssistantGuided installation and configuration process

Installation

Unpack and inspect contents. Place in well-ventilated area.

  1. Connect speakers: Use appropriate gauge speaker wire for each channel.
  2. Connect source devices: Use HDMI cables for video sources, analog for audio sources.
  3. Connect network: Use Ethernet cable or configure Wi-Fi during setup.
  4. Connect TV: Use HDMI OUT (MONITOR) to television.
  5. Plug into AC power.

WARNING! Ensure adequate ventilation around unit; do not block vents. Use proper speaker impedance matching.

First-Time Setup

Power on receiver; follow on-screen setup assistant.

  1. Run Audyssey calibration: Connect microphone, follow on-screen instructions for speaker measurement.
  2. Configure network: Select Wi-Fi or Ethernet, enter network credentials.
  3. Set up streaming services: Log into preferred music services through HEOS app.
  4. Configure inputs: Assign appropriate names to HDMI and audio inputs.
  5. Set up multi-room: Add HEOS compatible speakers for whole-home audio.

CAUTION! Keep magnetic devices away from speakers during calibration.

Specifications

Controls and Settings

Access OSD via front panel or remote control. Front Panel: POWER, INPUT SELECT, VOLUME, SETUP, TONE CONTROL.

Remote: POWER, INPUT SELECT, VOLUME, MUTE, SETUP, AUDIO, DISPLAY, ZONE 2, HEOS.

Audio Settings: Speaker configuration, crossover settings, distance settings, level calibration. Video Settings: Resolution, HDMI settings, video mode. Network Settings: Wi-Fi configuration, firmware updates, service login. HEOS Settings: Multi-room grouping, music services, favorites.

Connecting Devices

HDMI: Primary connection for modern AV components. Analog: For legacy audio components. Network: For streaming and control.

  1. Turn off receiver and devices before connecting.
  2. Use high-speed HDMI cables for 4K/8K content.
  3. Connect turntable to PHONO input with proper ground connection.
  4. Select input via INPUT SELECT (HDMI, Analog, Network, Bluetooth).

Tip: Use HDMI CEC for simplified control of connected devices.

Audio Streaming

Supports streaming from various music services and network sources.

  1. Network audio: Access streaming services through HEOS app or front panel.
  2. Bluetooth: Pair compatible devices for wireless audio streaming.
  3. USB: Connect storage devices for local music playback.
  4. Internet radio: Access thousands of internet radio stations.
  5. Multi-room: Sync audio across multiple HEOS compatible devices.
  6. Voice control: Compatible with Amazon Alexa and Google Assistant.

WARNING! Ensure stable network connection for optimal streaming performance.

Network Features

Network Control: Remote control via HEOS app and web interface. Firmware Updates: Automatic or manual updates via network. Multi-room Audio: Synchronized playback across multiple zones.

Care & Maintenance

Unplug before cleaning. Use soft, dry cloth for exterior; compressed air for vents.

CAUTION! Do not use liquid cleaners; avoid moisture near ventilation openings.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © 2024 Sound United LLC; Marantz is a registered trademark. For support, visit www.marantz.com or contact 1-800-370-3744.

Troubleshooting

SymptomPossible CauseCorrective Action
No sound from speakersSpeaker wires/input selectionCheck speaker connections; verify input selection; ensure volume not muted.
No video outputHDMI connection/settingsVerify HDMI cable connection; check TV input selection; reset HDMI handshake.
Network connection issuesWi-Fi signal/credentialsCheck network credentials; move closer to router; try Ethernet connection.
HEOS connection problemsNetwork/router settingsEnsure all HEOS devices on same network; check router multicast settings.
Audyssey calibration failsMicrophone/environmentEnsure calibration microphone properly connected; reduce ambient noise.

Reset: Press and hold STATUS and TUNER PRESET while powering on for factory reset.

Service: 1-800-370-3744; www.marantz.com

Marantz Arch Manual © - All Rights Reserved 2025