Marantz M-CR511 Network Media System

The Marantz M-CR511 (also known as the Melody Stream) is a compact all-in-one network receiver designed to combine streaming and amplification in a single chassis. It was developed as a lifestyle-oriented but genuinely hi-fi-capable system, carrying much of Marantz’s traditional musical tuning into a small footprint. The M-CR511 is particularly popular for secondary systems, desktop setups, and compact living spaces where space-saving matters without sacrificing sound quality.

Unlike many compact all-in-one systems, the M-CR511 integrates a network streaming platform, Bluetooth, and Class D amplification, giving it broad flexibility for both physical and digital playback.

A standout feature is its dual amplifier mode, allowing users to either run:

• 2 × 60W into a single stereo pair
  or
• 4 × 30W bi-amp mode

This makes it unusually flexible for a product in its class.

Specifications

Amplifier Section

• Power Output:
  60W x 2 (6Ω, 1kHz, THD 10%)
• Dynamic Amplifier topology
• Bi-amp capable
• Frequency Response: 5Hz – 40kHz
• Signal-to-Noise Ratio: 90dB

Network & Streaming

Network Features

• Ethernet LAN
• Built-in Wi-Fi
• DLNA 1.5
• Internet Radio
• Spotify Connect
• AirPlay
• Remote App control
• Web control interface

Wireless

• Bluetooth
• NFC pairing

File Support

• MP3
• WMA
• AAC
• WAV
• FLAC
• ALAC
• AIFF

Inputs

Digital Inputs

• 1 × Optical digital input

Analogue Inputs

• 1 × Stereo RCA analogue input

USB

• 1 × Front USB-A

Network

• 1 × Ethernet (RJ45)

Outputs

Speaker Outputs

• 4 × speaker terminals
  (for A/B or bi-amp configuration)

Subwoofer Output

• 1 × RCA subwoofer pre-out

Headphone Output

• 1 × 3.5mm headphone jack

User Features

• OLED display
• Alarm clock function
• Sleep timer
• Tone controls
• Last-function memory
• USB charging for iPod/iPhone
• Multi-language menu system
• Remote control included

Physical Specifications

• Dimensions (W × H × D):
  292 × 111 × 305 mm
• Weight:
  2.6 kg

The M-CR511 became popular because it delivers:

• excellent space efficiency
• surprisingly refined sound
• broad streaming support
• good low-volume performance
• simple all-in-one convenience

Owners often praise its smooth tonal balance and easy usability, though some long-term users note that wired Ethernet tends to be more reliable than Wi-Fi for stable streaming. Community reports also suggest the amplifier section performs best with efficient speakers.

Condition: Good

Colour: Black

Note: Product includes original packaging or additional accessories