Marantz M-CR603 User Manual

The Marantz M-CR603 is a network audio system receiver featuring high-quality audio playback, network streaming capabilities, AM/FM tuner, multiple digital and analog inputs, built-in amplifier, and versatile connectivity options. With support for various audio formats and streaming services, this compact system delivers premium sound performance. 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. Network Setup 8. Audio Playback 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Network audio receiver, Remote Control, Speaker terminals, Digital inputs, Analog inputs, Network port, USB port, AM/FM antenna terminals.

Feature	Description
Network streaming	Supports internet radio and streaming services
Digital inputs	Optical and coaxial digital audio inputs
Analog inputs	RCA and phono inputs for analog sources
USB port	For connecting USB storage devices
Network port	Ethernet connection for network audio
Speaker terminals	For connecting left and right speakers
AM/FM tuner	Built-in radio with preset memory
POWER	Turns unit on/off
SOURCE	Selects input source
VOLUME	Adjusts audio output level

Installation

Unpack and inspect contents. Place on stable, well-ventilated surface.

Connect speakers: Attach speaker wires to appropriate terminals.
Connect antenna: Attach AM and FM antennas to respective terminals.
Connect audio sources: Use digital or analog inputs for CD players, TVs, etc.
Network connection: Connect Ethernet cable for network features.
Plug into AC power.

WARNING! Ensure proper ventilation; do not block ventilation openings. Use correct speaker impedance.

First-Time Setup

Power on unit; follow initial setup procedure.

Speaker setup: Verify proper speaker connections and polarity.
Network configuration: Set up wired network connection.
Source setup: Configure input sources as needed.
Tuner setup: Auto-tune AM/FM stations and store presets.
Audio settings: Adjust tone controls and sound modes.

CAUTION! Ensure all connections are secure before powering on.

Specifications

Amplifier Power: 60W per channel (6 ohms)
Audio Formats: MP3, WMA, AAC, WAV, FLAC
Inputs: 2 optical digital, 1 coaxial digital, 2 analog, phono, USB
Outputs: Speaker terminals, headphone jack
Network: Ethernet, Wi-Fi (optional adapter)
Tuner: AM/FM with RDS
Frequency Response: 10Hz - 50kHz
Power Consumption: 45W (operation), 0.5W (standby)
Dimensions: 280 x 110 x 370 mm (W x H x D)

Controls and Settings

Front panel: POWER, SOURCE, VOLUME, TUNING, PRESET, MENU. Remote control: Power, numeric keys, transport controls, menu navigation.

Audio Settings: Bass, treble, balance, loudness, tone defeat. Source Settings: Input level, digital filter, phase adjustment. System Settings: Display brightness, auto standby, firmware update.

Connecting Devices

Digital sources: Optical/coaxial cables. Analog sources: RCA cables. Network: Ethernet cable.

Turn off unit before connecting devices.
Match cable types to appropriate inputs.
Select source via SOURCE button or remote.
For phono input: Connect turntable with ground wire.

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

Network Setup

Wired network connection required for streaming features.

Connect Ethernet cable to router and unit.
Access network settings in menu.
Configure internet radio presets.
Set up streaming service accounts.
Update firmware when available.

Note: For Wi-Fi, optional USB Wi-Fi adapter required.

Audio Playback

Supports various audio sources and formats.

Select source: Press SOURCE to choose input.
Playback control: Use transport buttons for play/pause/skip.
Volume adjustment: Use VOLUME knob or remote.
Sound modes: Select preset or custom equalizer settings.
Preset recall: Use numbered buttons for station presets.

WARNING! Avoid excessive volume levels to prevent hearing damage.

Care & Maintenance

Unplug before cleaning. Use soft, dry cloth for exterior. Keep away from moisture and heat sources.

CAUTION! Do not use liquid cleaners or aerosols. Ventilation openings must remain unobstructed.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cord/outlet	Check power connection; try different outlet.
No sound	Speaker connections/volume	Verify speaker wires; check volume level; ensure mute off.
Network not working	Cable/network settings	Check Ethernet cable; verify network configuration.
Remote not working	Batteries/obstructions	Replace batteries; ensure clear line of sight to unit.
Poor radio reception	Antenna placement	Reposition antennas; extend FM antenna fully.

Reset: Disconnect power for 30 seconds then reconnect.

Service: Contact authorized Marantz service center.