Marantz Stereo 70s Slimline Stereo Receiver

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Musical and Cinematic.

Enter a new world of high performance, storied history, and legendary artisanship.


Marantz Stereo 70s Slimline Stereo Receiver with HEOS Built-In

Get serious home entertainment with only two speakers. All the tech found in full-size AV receivers in a slimline, stereo receiver with HDMI switching, HEOS streaming built-in, Phono and FM/DAB+ radio.

Key Features
• 75 Watts per channel (8 ohm, 20 Hz - 20 kHz, 0.08% 2ch Drive)
• Highly compact slimline design
• 6 HDMI inputs (3x 8K)
• HEOS Built-in for multi-room streaming, music streaming and voice control
• Supports Dolby Vision, HDR10+, ARC, VRR and ALLM for enhanced picture and audio
• High-Res audio streaming with FLAC, ALAC, and WAV support up to 24-bit/192-kHz, as well as DSD 2.8/5.6MHz
• Built-in Wi-Fi & Bluetooth
• Supports all major voice control agents and streaming services
• Integrated phono input to directly connect your turntable

User Manual (PDF, 8.84MB)

75 Watts Per Channel

The fully discrete stereo amplifier produces clear, detailed, warm, spacious, and dynamic sound from any source.


Six HDMI inputs (3x 8K) are compatible with streamers, game consoles, Blu-Ray players and more. HDMI-ARC enables simple connection to your TV or projector.

Dual Subwoofer Outputs

Add deep and impactful bass with two subwoofer outputs. Tune bass to perfection using extensive speaker and subwoofer configuration options accessible through the menu.

Pre-Amp Output

Leverage pre-amp mode to connect to an external amplifier for even higher sound quality and more power should you decide to upgrade later.




Home Cinema from Only Two Channels

STEREO 70s merges the flexibility and features found in our CINEMA Series AVRs into a slim and simple 2 channel receiver. 8K HDMI plus ARC facilitates connection of smart TVs, game consoles and streaming systems. On screen display uses your TV screen to assist with setup. Support for up to 2 subwoofers means plenty of deep bass even when using small bookshelf speakers.

High Resolution Audio

Carefully engineered with specially chosen components, STEREO 70s unveils the natural immersivness and power of sound. Crystal clear digital decoding of up to 192 kHz 24-bit audio and DSD opens a new world of high resolution music with depth, breadth, and clarity not available with lossy files.





Slim and Elegant

Marantz design is timelessly elegant - an expression of the musical soundscapes the products create. Their philosophy of balance and symmetry is evident in their sound and designs. Meticulously engineered in a compact chassis, STEREO 70s fits where standard equipment cannot.

HEOS® Built-in Multi-Room Streaming

HEOS® Built-in technology lets you enjoy your favourite music in any room of your home for a wireless, whole-home audio experience. Play the same song in every room or select a different song for each connected room—the choice is yours.

Hi-Res Audio Support

Enjoy music exactly as the artist intended. The Cinema 70s decodes Hi-Res audio ALAC, FLAC and WAV lossless files up to 24-bit/192-kHz, as well as DSD 2.8MHz and 5.6MHz tracks (the audiophile format of SACD), allowing you to enjoy each note exactly as the artist intended.


Enhanced Picture Processing

HDR10+ is the advanced, improved version of HDR10, a technology that enhances the colour and contrast of media. They both utilize metadata to tell your phone or TV how to show the HDR content, upgrading the view when you're watching a video.

Dolby Vision is a stunning HDR imaging technology that brings extraordinary colour, contrast, and brightness to the screen. See what you've been missing.




Bluetooth & Wi-Fi

The STEREO 70s lets you stream your favourite audio tracks wirelessly via Wi-Fi and Bluetooth. The antenna system ensures stable streaming and compatibility with the widest range of smart devices.

Integrated MM Phono Input

Easily connect your turntable to the receiver and enjoy the pure intent of each recording within your vinyl collection. The STEREO 70s features a dedicated phono stage input for your record player.

Dual Subwoofer Outputs

The STEREO 70s supports dual subwoofers for even, low-frequency bass response within your listening environment.





HEOS Built-in

With HEOS® Built-in technology, enjoy your favourite music in any room of your home for a wireless, whole-home audio experience. Play the same song in every room or select a different song for each connected room - the choice is yours. Enjoy music from Spotify, Pandora, TIDAL and more or your local music file libraries. With additional HEOS® Built-in components, like HEOS-capable speakers, play all your music in one room or many.

Roon Tested

Roon transforms the experience of browsing music. Access Roon for your Marantz product to browse artist photos, credits, bios, reviews, lyrics, tour dates, and composers. Roon allows your to easily build a surfable, searchable digital magazine about your music collection. Roon discovers all the same links between your personal files and the millions of tracks available on TIDAL, so you can start with the music you know, then explore new music from the world beyond your collection.

AirPlay 2 + Apple Siri Voice Control

Stream audio from your favourite music services like Apple Music and Spotify or watch videos from services like YouTube and Netflix from any iPhone, iPad, Mac or Apple TV. Hear the audio perfectly synced to your speakers from AirPlay 2 sources.

For multi-room audio, wirelessly stream content to multiple AirPlay 2 compatible devices simultaneously with improved audio buffering to ensure smooth audio playback. AirPlay 2 provides control and grouping of compatible audio devices within the Apple Music or Home app. Use AirPlay 2 in-app or with your voice via Siri.

Amazon Alexa Voice Control

Use your voice to stream your favourite music services to this HEOS Built-in device. Ask Alexa to play music from Pandora, Spotify, Amazon Music and much more. Switch between inputs (Blu-ray, DVD, Media Player, etc.), turn the volume up or down, pause, mute and play the next song - all with your voice.

With HEOS and Alexa, you can stream to this product and any other product with HEOS Built-in.

Google Assistant Voice Control

Ask your Google Home, Google app or other devices with Google Assistant built-in to control content across your listening environment. Start music in the HEOS app, then ask your Google Assistant to control volume, play, pause, skip tracks and more.


Model Number STEREO70s.con

Power Amplifier

- Number of Powered Channels: 2
- Power Output (8 ohm, 20 Hz - 20 kHz, 0.08% 2ch Drive): 75 W
- Power Output (6 ohm, 1 kHz, 0.7% 2ch Drive: 100 W
- Discrete Power Amplifier: Yes
- Amplifier Topology: Class A/B


- HDMI In / Out: 6 / 1
- Analog In / Fixed Level Out: 3 in / out
- Phono (MM) In: Yes
- Digital In: Optical / Coaxial: 1 / 1
- Multi-Room Out: analog / digital: 1 / 0
- Multichannel Preamp Out: 2.2
- Subwoofer Out: 2
- Number of Speaker Terminals: 4
- Speaker A / B: Yes
- USB Audio: USB A (Host)
- DAB+/FM Tuner: Yes

Multichannel Surround Technologies

- Max Number of Processing (Preamp) Channels: 2.1


- Total HDMI Inputs / Number Supports 8K: 6 / 3
- HDCP2.3 support: Yes
- HDMI Outputs: Main / Zone: 1 / 0
- HDMI Upscaling: 1080P/4K to 8K
- Audio Return Channel: ARC
- Video Dynamic Range: HDR / HLG / Dolby Vision / HDR10+ / Dynamic HDR
- ALLM (Auto Low Latency Mode) Pass-through for gaming: Yes
- Variable Refresh Rate / Quick Frame Transport: Yes / Yes
- HDMI Pass-Through in Standby Mode: Yes

Performance Technologies

- Pure Direct Mode: Yes
- Gold Plated RCA Terminals: Yes
- Hyper Dynamic Amplifier Modules (HDAM): Yes

Music File Support

- Lossy Formats: MP3 / WMA / AAC
- Lossless formats: FLAC HD 192/24 / WAV 192/24 / ALAC 192/31
- DSD Audio: 2.8 MHz / 5.6MHz
- Gapless Playback: FLAC, WAV ,ALAC ,DSD
- Compressed Audio Enhancer: MDAX2: Yes
- Network Audio Sharing: Yes

Streaming Services

- HEOS Multi-room and Streaming: Yes
- AirPlay Audio Streaming: AirPlay2
- Internet Radio: TuneIn
- Spotify*: Spotify Connect (* availability of services might vary per region)
- Other Streaming Services*: Amazon Music HD/Amazon Music / TIDAL / Deezer / iHeart Radio / Napster / Soundcloud / Mood Mix (* availability of services might vary per region)
- Roon tested: Yes

Network Connectivity

- Ethernet Ports: Yes
- Bluetooth Re-transmit for Bluetooth headphones: Yes (with volume control)
- Bluetooth: Yes
- Wi-Fi: Yes

Smart Home Integration And Control

- Voice Assistant Compatibility: Alexa / Google Voice Assistant / Apple HomePod
- App for Smart Phones & Tablets (iOS & Android): Marantz AVR App
- HEOS Multi-Room Integrated: Yes
- HEOS Link Compatibility: IR/ IP Yes / Yes
- Multi-Room zones: 1
- Zone Audio Source: HDMI / Opt, Coax / Network, USB / Analog: 2 Ch / 2Ch / Yes / Yes
- Zone Audio Output: Speaker / Preout: No/Yes
- HDMI Diagnostics: Yes


- Front Display: port hole OLED
- GUI Languages: English, Spanish, French, German, Italian, Dutch, Polish, Swedish, Russian
- Setup Assistant: Yes
- Smart Select on Remote: Yes
- Firmware Update by Network / USB: Yes / Yes
- ECO Mode: Yes
- Auto Power off: Yes
- Sleep Timer: Yes


- System Remote Control: RC-052SR
- Power Consumption in W: 210
- Standby Consumption in W: 0.2
- CEC Standby Consumption in W: 0.5
- Network Standby Consumption in W: Less than 2.0
- Dimensions (W x H x D): 442mm x 375mm x 109mm
- Weight in kg: 8.4
- Available colours: Black / Silver-Gold

What's in the box:

- Main unit
- remote control
- batteries
- DAB+/FM antenna
- wire labels
- quick start guide
- 2 external detachable antenna
- AC power cord

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5 Years
This Marantz amplifier is covered under warranty in Australia for 5 years.

If you experience any issues with this product please don't hesitate to contact us.
How much does delivery cost?
We offer free post on all orders over $29 to anywhere within the Australian mainland and Tasmania.

Can I pick up my purchase from your store?
Yes. You can usually pick up your order from one of our stores. We recommend that you contact us first to ensure your order is ready for collection.

What happens if I'm not happy with my product when it arrives?
All change of mind returns must be in as new condition, in original packaging. We provide a generous 30-day change-of-mind guarantee on our products (unless otherwise stated). All change of mind returns must be in as new condition, in original packaging.

Please visit our FAQ page for answers to other frequently asked questions or contact us if you have any other questions or comments.