marantz 7055 manual

The Marantz 7055 is a high-performance AV receiver featuring 7.2 channel processing, 4K/60Hz video pass-through, Dolby Atmos and DTS:X support, built-in Wi-Fi and Bluetooth, HEOS multi-room audio, Audyssey room calibration, and extensive connectivity options. Below are key sections for setup, features, operation, and troubleshooting.

Features at a Glance

Key components: 7.2 channel amplifier, HDMI inputs/outputs, network connectivity, remote control, Audyssey microphone, speaker terminals.

Feature	Description
HDMI Inputs	6 HDMI inputs with 4K/60Hz pass-through
Network Connectivity	Built-in Wi-Fi and Ethernet for streaming
Bluetooth	Wireless audio streaming from compatible devices
HEOS Multi-room	Whole-home audio system integration
Audyssey Room Correction	Auto-calibration for optimal sound quality
Dolby Atmos/DTS:X	Immersive 3D audio format support
Zone 2 Output	Second zone audio capability
Phono Input	Dedicated turntable connection
Front Display	OLED display for status information
Remote Control	Full-function remote with backlight

Installation

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

1. Connect speakers: Use speaker wire to connect all speakers to corresponding terminals.
2. Connect subwoofer: Use RCA cable to connect one or two subwoofers.
3. Connect source devices: Use HDMI cables for video sources.
4. Connect TV: Use HDMI OUT to ARC-enabled TV input.
5. Connect to network: Use Ethernet cable or Wi-Fi setup.
6. Plug into AC power.

WARNING! Ensure proper ventilation; leave at least 4 inches clearance around unit.

First-Time Setup

Power on receiver; follow on-screen setup assistant.

1. Run Audyssey calibration: Connect microphone, follow on-screen prompts.
2. Set speaker configuration: Verify speaker sizes and distances.
3. Configure network: Connect to Wi-Fi or Ethernet.
4. Set input assignments: Assign sources to HDMI inputs.
5. Configure audio settings: Set crossover, levels, and processing modes.

CAUTION! Do not move microphone during calibration process.

Specifications

• Amplifier: 7.2 channels, 100W per channel (8 ohms, 20Hz-20kHz)
• Video: 4K/60Hz pass-through, HDR10, Dolby Vision
• Audio Formats: Dolby Atmos, DTS:X, Dolby TrueHD, DTS-HD Master Audio
• Connectivity: 6 HDMI inputs, 2 HDMI outputs, Ethernet, Wi-Fi, Bluetooth
• Streaming: HEOS, AirPlay 2, Spotify Connect, Tidal
• Room Correction: Audyssey MultEQ XT
• Power Consumption: 600W maximum
• Dimensions: 17.3" W x 6.3" H x 15.4" D
• Weight: 23.1 lbs

Controls and Settings

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

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

Audio Settings: Speaker configuration, crossover, levels, Audyssey settings. Video Settings: Resolution, HDMI setup, video mode. Network Settings: Wi-Fi setup, firmware update, streaming services. System Settings: GUI language, auto standby, remote control setup.

Connecting Devices

HDMI: Connect Blu-ray players, game consoles, streaming devices. Analog: Connect turntable, CD player. Network: Ethernet or Wi-Fi.

1. Turn off receiver and devices before connecting.
2. Use high-speed HDMI cables for 4K devices.
3. Assign inputs in setup menu for easy selection.
4. Connect subwoofer using mono RCA cable.

Tip: Use HDMI-CEC for single remote control operation.

Network Setup

Supports wired and wireless network connections.

1. Wired: Connect Ethernet cable to router.
2. Wireless: Access network settings, select Wi-Fi network, enter password.
3. Streaming services: Access via HEOS app or front panel.
4. Firmware updates: Check for updates in system menu.

WARNING! Ensure stable network connection for streaming services.

Audio Calibration

Audyssey MultEQ XT room correction system.

1. Connect calibration microphone to front panel.
2. Position microphone at primary listening position.
3. Follow on-screen instructions for multiple measurement positions.
4. Review and save calibration results.
5. Adjust settings manually if desired.

CAUTION! Maintain quiet environment during calibration.

Care & Maintenance

Unplug before cleaning. Use soft, dry cloth for exterior. Keep vents clear of dust.

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

Regulatory Information

FCC Part 15: Class B digital device compliant. CE marked for European market. Copyright © 2023 Sound United LLC. For support, visit www.marantz.com or contact 1-800-370-3744.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound	Input selection/volume	Check input selection; increase volume; verify speaker connections.
No video	HDMI connection	Check HDMI cables; verify TV input selection; try different HDMI port.
Network connection failed	Wi-Fi/Ethernet	Check network settings; verify password; restart router.
Remote not working	Batteries/obstructions	Replace batteries; ensure clear line of sight to receiver.
Overheating	Ventilation	Ensure adequate ventilation; clear vents of obstructions.

Reset: Press and hold STATUS and ZONE 2 SOURCE for 5 seconds.

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