Description

Marantz STEREO 70s Stereo Network Receiver

Experience rich stereo performance with modern connectivity in a compact form.
The Marantz STEREO 70s combines classic stereo sound with cutting-edge home theater features. It delivers powerful audio output, 8K HDMI support, flexible streaming, and elegant design—all in a sleek, space-saving chassis.

Highlighted Features

Premium Amplification — 75W x 2 Channels
Enjoy a lifelike soundstage with Marantz’s fully discrete 2-channel amplifier, delivering 75 watts per channel for refined, powerful, and dynamic audio across all your sources.

Advanced HDMI Connectivity with 8K Support
Featuring six HDMI inputs (three with 8K support), this receiver easily accommodates game consoles, media streamers, and Blu-ray players. HDMI ARC simplifies TV integration, offering a clean and minimal setup.

Dual Subwoofer Outputs
Connect two subwoofers to enhance your system’s low-frequency response. With extensive speaker and bass management options accessible via the on-screen menu, tailoring your sound is effortless.

Pre-Amp Output for Future Expansion
Use the pre-amp mode to link external amplifiers, giving you the option to upgrade power and fidelity while preserving core Marantz sound quality.

Big Theater Sound from Just Two Channels
The STEREO 70s brings AV receiver features—like on-screen setup, 8K HDMI input, ARC, and dual subwoofer output—into a straightforward two-channel system. Perfect for stereo music enthusiasts who want home theater flexibility without the bulk.

Hi-Res Audio Decoding
Designed with high-grade components, this receiver supports digital audio playback up to 192kHz/24-bit and DSD 2.8/5.6MHz. It reveals more nuance, clarity, and immersion compared to compressed formats.

Elegant and Space-Efficient Design
With signature Marantz styling and balanced aesthetics, the STEREO 70s blends timeless design with modern performance. It’s compact enough to fit into tight spaces without sacrificing sound quality.

HEOS® Built-In Multiroom Streaming
Wirelessly enjoy music throughout your entire home with HEOS. Whether you’re syncing the same song across rooms or customizing audio per space, HEOS gives you full streaming flexibility.

Technical Specifications

Amplifier

Channels: 2
Power Output (8Ω, 20Hz–20kHz, THD 0.08%, 2ch driven): 75W
Power Output (6Ω, 1kHz, THD 0.7%, 2ch driven): 100W
Topology: Class A/B
Fully Discrete Amplification: Yes

Inputs & Outputs

HDMI Inputs/Outputs: 6 / 1 (3 HDMI IN support 8K)
Analog Inputs / Outputs: 3 / 1 (Fixed Level)
Phono Input (MM): Yes
Digital Inputs: Optical x1, Coaxial x1
USB: USB-A Host
Subwoofer Outputs: 2
Multichannel Pre-Out: 2.2 channel
Speaker Terminals: 4 (Supports A/B Switching)
DAB+/FM Tuner: Included

HDMI & Video

8K Input Support: 3 Inputs
HDMI Upscaling: Up to 8K (from 1080p/4K)
HDR Support: HDR10+, Dolby Vision, HLG, Dynamic HDR
Gaming Features: ALLM, VRR, QFT
ARC (Audio Return Channel): Yes
HDMI Standby Pass-Through: Yes
HDCP 2.3: Yes

Audio Technologies

Hyper Dynamic Amplifier Modules (HDAM): Yes
Pure Direct Mode: Yes
Gold-Plated RCA Connectors: Yes
Compressed Audio Enhancer (MDAX2): Yes

Audio File Support

Lossy Formats: MP3, WMA, AAC
Lossless Formats: FLAC 192/24, WAV 192/24, ALAC 192/32
DSD Playback: DSD 2.8MHz / 5.6MHz
Gapless Playback: FLAC, ALAC, WAV, DSD

Streaming & Network

HEOS Built-in: Yes
AirPlay 2: Supported
Internet Radio: TuneIn
Spotify: Spotify Connect
Additional Streaming Platforms: TIDAL, Amazon Music HD, Deezer, Napster, SoundCloud, iHeart Radio, Mood Mix*
Roon Tested: Yes
Bluetooth (with headphone support): Yes
Wi-Fi / Ethernet: Yes / Yes

Smart Home Integration

Voice Control: Alexa, Google Assistant, Apple HomePod
Control App (iOS & Android): Marantz AVR App
HEOS Link Control: IR / IP
Multi-Room Zones: 1 (HDMI/Optical/Coax/USB/Analog Sources)
Zone Output: Pre-Out Only

User Experience

Front Display: OLED Porthole
Graphical Setup Assistant: Included
Languages: English, French, German, Dutch, Spanish, Italian, Polish, Swedish, Russian
Smart Select Remote Buttons: Yes
Firmware Updates: Network & USB
Eco Mode, Sleep Timer, Auto Power-Off: Yes