{"product_id":"marantz-stereo-70s","title":"Marantz Stereo 70s 2.2 Channel Receiver","description":"\u003ch1\u003eMarantz STEREO 70s Network Stereo Receiver\u003c\/h1\u003e\u003ch3\u003e75 Wpc class-AB amplification with HEOS streaming, six HDMI inputs, 8K video support, and MM phonostage\u003c\/h3\u003e\u003cp\u003eThe Marantz STEREO 70s combines traditional two-channel hi-fi performance with the extensive connectivity and convenience features of a modern AV receiver. Delivering 75 W per channel into 8 Ω, the STEREO 70s incorporates discrete class-AB amplification, Marantz HDAM circuitry, high-resolution network streaming, six HDMI inputs, and a built-in MM phonostage in a slim, elegant chassis.\u003c\/p\u003e\u003cp\u003eDesigned for listeners who want a high-quality stereo music system that can also handle television, movies, and gaming, the STEREO 70s brings many of the capabilities found in Marantz's CINEMA Series receivers to a dedicated two-channel design. With HEOS Built-in, Apple AirPlay 2, Bluetooth, Spotify Connect, and HDMI ARC, it can accommodate an extensive range of music and entertainment sources without the complexity of a multichannel home theater system.\u003c\/p\u003e\u003ch4\u003eDiscrete Class-AB Amplification\u003c\/h4\u003e\u003cp\u003eAt the heart of the STEREO 70s is a fully discrete, two-channel class-AB power amplifier rated at 75 W per channel into 8 Ω, measured from 20 Hz to 20 kHz with both channels driven and total harmonic distortion of 0.08%. Power increases to 100 W per channel into 6 Ω at 1 kHz with both channels driven and 0.7% THD.\u003c\/p\u003e\u003cp\u003eUnlike multichannel AV receivers that must distribute their available power across numerous speakers, the STEREO 70s concentrates its amplification on two channels. This approach makes it particularly well suited to conventional bookshelf and floorstanding loudspeakers while retaining the flexibility of modern home entertainment connectivity.\u003c\/p\u003e\u003cp\u003eThe amplifier incorporates Marantz's proprietary Hyper Dynamic Amplifier Modules (HDAM), which use discrete components rather than conventional integrated-circuit operational amplifiers in critical signal stages. These circuits are designed to provide high slew rates and wide bandwidth, helping the amplifier respond accurately to the changing demands of music.\u003c\/p\u003e\u003cp\u003eMarantz's Sound Master tuning process further refines the amplifier's performance through careful component selection and extensive listening evaluations. The result is a receiver designed to deliver the company's characteristic combination of musical detail, tonal richness, and spacious imaging.\u003c\/p\u003e\u003ch4\u003eHigh-Resolution Music Streaming With HEOS\u003c\/h4\u003e\u003cp\u003eWith HEOS Built-in, the STEREO 70s provides convenient access to music streaming services, internet radio, and locally stored digital music. The HEOS app allows listeners to browse music, select sources, adjust volume, and control playback from a smartphone or tablet. Supported services include Amazon Music, TIDAL, Spotify, Pandora, Deezer, and others, with availability varying by region.\u003c\/p\u003e\u003cp\u003eFor listeners with their own digital music libraries, the STEREO 70s supports high-resolution PCM files up to 24-bit\/192 kHz and DSD files at 2.8 MHz and 5.6 MHz. Music can be played from compatible network-attached storage devices, computers on the local network, or USB storage connected directly to the receiver.\u003c\/p\u003e\u003cp\u003eGapless playback is supported for FLAC, WAV, ALAC, and DSD files, allowing live albums, classical recordings, and other continuous performances to play without interruptions between tracks.\u003c\/p\u003e\u003cp\u003eApple AirPlay 2 makes it easy to stream directly from an iPhone, iPad, or Mac, while Bluetooth provides a convenient wireless connection for compatible devices. Spotify Connect offers direct control of Spotify playback from the Spotify app. The STEREO 70s is also Roon Tested, providing additional flexibility for listeners using Roon to organize and play their digital music collections.\u003c\/p\u003e\u003ch4\u003eMultiroom Audio Made Simple\u003c\/h4\u003e\u003cp\u003eThe STEREO 70s can also be part of a larger HEOS multiroom audio system. Connect additional HEOS-enabled Marantz or Denon components throughout the home, and use the HEOS app to play different music in different rooms or synchronize playback across multiple listening areas.\u003c\/p\u003e\u003cp\u003eA dedicated stereo zone preamplifier output allows the receiver to send audio to an external amplifier serving another room. This provides a useful option for expanding a listening system without requiring an entirely separate source component.\u003c\/p\u003e\u003cp\u003eBluetooth retransmission also allows audio to be sent from the receiver to compatible Bluetooth headphones, with independent volume control for convenient private listening.\u003c\/p\u003e\u003ch4\u003eHome Cinema From Just Two Channels\u003c\/h4\u003e\u003cp\u003eOne of the STEREO 70s' distinguishing features is its ability to handle modern television and video sources while remaining a dedicated stereo receiver. Six HDMI inputs accommodate televisions, streaming media players, game consoles, Blu-ray players, and other compatible components, with three inputs supporting 8K video signals.\u003c\/p\u003e\u003cp\u003eThe receiver supports 8K\/60 Hz and 4K\/120 Hz video pass-through on compatible HDMI connections, along with HDR10+, Dolby Vision, Hybrid Log-Gamma (HLG), and Dynamic HDR. HDCP 2.3 compatibility helps ensure reliable operation with protected digital video sources.\u003c\/p\u003e\u003cp\u003eAn HDMI output with Audio Return Channel (ARC) allows audio from a compatible television to be played through conventional stereo loudspeakers. HDMI-CEC support also allows compatible television remotes to control power and volume, simplifying everyday operation.\u003c\/p\u003e\u003cp\u003eWith the STEREO 70s, listeners can enjoy the improved dialogue intelligibility, dynamics, and soundstage of a dedicated stereo speaker system without requiring a full surround sound installation.\u003c\/p\u003e\u003ch4\u003eGaming Features and 8K Video Processing\u003c\/h4\u003e\u003cp\u003eThe STEREO 70s incorporates several HDMI technologies intended to improve the gaming experience. Variable Refresh Rate (VRR) helps reduce screen tearing, while Auto Low Latency Mode (ALLM) allows compatible equipment to switch automatically to a low-latency setting.\u003c\/p\u003e\u003cp\u003eQuick Frame Transport (QFT) further helps reduce latency between a gaming source and the display. Together, these features make the receiver suitable for modern gaming consoles and other video sources that benefit from high refresh rates and responsive performance.\u003c\/p\u003e\u003cp\u003eVideo upscaling from 1080p or 4K to 8K is also supported, allowing lower-resolution video sources to be output at 8K resolution when used with compatible displays.\u003c\/p\u003e\u003ch4\u003eTwo Subwoofer Outputs and Flexible Speaker Configuration\u003c\/h4\u003e\u003cp\u003eAlthough the STEREO 70s is designed around two primary audio channels, it provides two subwoofer outputs for systems requiring greater low-frequency extension. This 2.2-channel configuration makes it possible to combine a pair of compact bookshelf loudspeakers with one or two powered subwoofers, creating a full-range stereo system without the need for large floorstanding speakers.\u003c\/p\u003e\u003cp\u003eSpeaker A\/B switching provides connections for two pairs of loudspeakers, allowing listeners to select between speaker systems or operate compatible configurations according to their requirements.\u003c\/p\u003e\u003cp\u003eThe receiver also includes 2.2-channel preamplifier outputs, making it possible to use an external power amplifier while retaining the STEREO 70s' source selection, streaming, and control capabilities.\u003c\/p\u003e\u003ch4\u003eBuilt-In MM Phonostage\u003c\/h4\u003e\u003cp\u003eFor vinyl enthusiasts, the STEREO 70s includes a dedicated moving-magnet phonostage. This allows a turntable fitted with a compatible MM cartridge to connect directly to the receiver without requiring a separate external phono preamplifier.\u003c\/p\u003e\u003cp\u003eThe receiver also provides three stereo RCA analog inputs for components such as CD players, tape decks, and external DACs. Gold-plated RCA terminals provide reliable connections and help resist corrosion over time.\u003c\/p\u003e\u003cp\u003eBy combining analog connectivity with modern streaming and video capabilities, the STEREO 70s can accommodate both traditional hi-fi sources and the latest digital entertainment equipment.\u003c\/p\u003e\u003ch4\u003eDigital Audio and Listening Modes\u003c\/h4\u003e\u003cp\u003eIn addition to its HDMI connections, the STEREO 70s provides optical and coaxial digital inputs for compatible CD transports, televisions, and other digital audio sources. These inputs allow the receiver's internal digital-to-analog conversion circuitry to be used with a range of external components.\u003c\/p\u003e\u003cp\u003ePure Direct mode minimizes unnecessary processing and circuitry during music playback, providing a more direct signal path for listeners who prefer a traditional two-channel listening experience.\u003c\/p\u003e\u003cp\u003eMarantz's M-DAX2 compressed audio enhancement technology is also included. This processing is designed to improve the perceived quality of compressed digital audio files by addressing some of the high-frequency information lost during compression.\u003c\/p\u003e\u003cp\u003eFor conventional radio listening, the STEREO 70s includes an AM\/FM tuner, providing an additional source that does not require an internet connection.\u003c\/p\u003e\u003ch4\u003eSlimline Design and Easy System Integration\u003c\/h4\u003e\u003cp\u003eThe STEREO 70s incorporates its extensive connectivity and amplification into a chassis measuring just 4.3\" high, allowing it to fit into spaces where a full-size AV receiver may be impractical. Its understated front panel features Marantz's distinctive circular OLED display and a symmetrical arrangement of controls.\u003c\/p\u003e\u003cp\u003eAn on-screen setup assistant simplifies initial installation by guiding users through speaker connections, source configuration, and network setup. The Marantz AVR Remote app provides control of receiver functions from a compatible smartphone or tablet, while the HEOS app handles music streaming and multiroom playback.\u003c\/p\u003e\u003cp\u003eWired Ethernet and Wi-Fi provide flexible network connectivity. The receiver also supports popular voice-control platforms and custom installation systems, including IP and IR control integration.\u003c\/p\u003e\u003cp\u003eAdditional conveniences include HDMI pass-through in standby mode, an automatic power-off function, sleep timer, and Eco mode to help manage power consumption.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTwo-channel stereo network receiver with 2.2-channel audio capability\u003c\/li\u003e\n\u003cli\u003e75 W per channel into 8 Ω (20 Hz–20 kHz, 0.08% THD, two channels driven)\u003c\/li\u003e\n\u003cli\u003e100 W per channel into 6 Ω (1 kHz, 0.7% THD, two channels driven)\u003c\/li\u003e\n\u003cli\u003eFully discrete class-AB power amplification\u003c\/li\u003e\n\u003cli\u003eProprietary Marantz Hyper Dynamic Amplifier Modules (HDAM)\u003c\/li\u003e\n\u003cli\u003eMarantz Sound Master tuning with carefully selected audio components\u003c\/li\u003e\n\u003cli\u003eHEOS Built-in for high-resolution music streaming and multiroom audio\u003c\/li\u003e\n\u003cli\u003eApple AirPlay 2, Bluetooth, and Spotify Connect\u003c\/li\u003e\n\u003cli\u003eRoon Tested compatibility\u003c\/li\u003e\n\u003cli\u003eHigh-resolution PCM playback up to 24-bit\/192 kHz and DSD up to 5.6 MHz\u003c\/li\u003e\n\u003cli\u003eGapless playback for FLAC, WAV, ALAC, and DSD files\u003c\/li\u003e\n\u003cli\u003eSix HDMI inputs and one HDMI output with ARC\u003c\/li\u003e\n\u003cli\u003eThree HDMI inputs supporting 8K\/60 Hz and 4K\/120 Hz video\u003c\/li\u003e\n\u003cli\u003eHDR10+, Dolby Vision, HLG, and Dynamic HDR compatibility\u003c\/li\u003e\n\u003cli\u003e8K video upscaling from 1080p and 4K sources\u003c\/li\u003e\n\u003cli\u003eHDCP 2.3 compatibility\u003c\/li\u003e\n\u003cli\u003eVariable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), and Quick Frame Transport (QFT)\u003c\/li\u003e\n\u003cli\u003eHDMI-CEC and HDMI pass-through in standby mode\u003c\/li\u003e\n\u003cli\u003eTwo subwoofer outputs for 2.2-channel systems\u003c\/li\u003e\n\u003cli\u003e2.2-channel preamplifier outputs for external amplification\u003c\/li\u003e\n\u003cli\u003eSpeaker A\/B switching with connections for two pairs of loudspeakers\u003c\/li\u003e\n\u003cli\u003eDedicated moving-magnet phonostage for turntable connection\u003c\/li\u003e\n\u003cli\u003eThree stereo RCA analog inputs\u003c\/li\u003e\n\u003cli\u003eOptical and coaxial digital audio inputs\u003c\/li\u003e\n\u003cli\u003eUSB-A input for music playback from compatible storage devices\u003c\/li\u003e\n\u003cli\u003eAM\/FM tuner\u003c\/li\u003e\n\u003cli\u003ePure Direct listening mode\u003c\/li\u003e\n\u003cli\u003eM-DAX2 compressed audio enhancement\u003c\/li\u003e\n\u003cli\u003eBluetooth retransmission for compatible wireless headphones\u003c\/li\u003e\n\u003cli\u003eDedicated stereo zone preamplifier output\u003c\/li\u003e\n\u003cli\u003eDual-band Wi-Fi and wired Ethernet connectivity\u003c\/li\u003e\n\u003cli\u003eVoice assistant compatibility with supported platforms\u003c\/li\u003e\n\u003cli\u003eMarantz AVR Remote app and HEOS app control\u003c\/li\u003e\n\u003cli\u003eOn-screen setup assistant\u003c\/li\u003e\n\u003cli\u003eCustom installation compatibility with IR and IP control\u003c\/li\u003e\n\u003cli\u003eFront-panel circular OLED display\u003c\/li\u003e\n\u003cli\u003eSlimline chassis measuring just 4.3\" high\u003c\/li\u003e\n\u003cli\u003eEco mode, sleep timer, and automatic power-off\u003c\/li\u003e\n\u003cli\u003eFive-year manufacturer's limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMarantz STEREO 70s receiver\u003c\/li\u003e\n\u003cli\u003eRemote control (RC-052SR)\u003c\/li\u003e\n\u003cli\u003eBatteries for remote control\u003c\/li\u003e\n\u003cli\u003eAM\/FM antennas\u003c\/li\u003e\n\u003cli\u003eTwo external detachable wireless antennas\u003c\/li\u003e\n\u003cli\u003eSpeaker wire labels\u003c\/li\u003e\n\u003cli\u003eQuick start guide\u003c\/li\u003e\n\u003cli\u003eAC power cord\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cp\u003e\u003cb\u003eType:\u003c\/b\u003e Network stereo receiver with HDMI switching\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAmplifier Design:\u003c\/b\u003e Discrete class-AB with Marantz HDAM circuitry\u003c\/p\u003e\u003cp\u003e\u003cb\u003eChannels:\u003c\/b\u003e 2.2\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePowered Channels:\u003c\/b\u003e 2\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePower Output (8 Ω):\u003c\/b\u003e 75 W per channel (20 Hz–20 kHz, 0.08% THD, two channels driven)\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePower Output (6 Ω):\u003c\/b\u003e 100 W per channel (1 kHz, 0.7% THD, two channels driven)\u003c\/p\u003e\u003cp\u003e\u003cb\u003eMaximum Power Output (6 Ω):\u003c\/b\u003e 150 W (1 kHz, 10% THD, one channel driven)\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAmplifier Technology:\u003c\/b\u003e Discrete power amplifier with Hyper Dynamic Amplifier Modules (HDAM)\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSpeaker Outputs:\u003c\/b\u003e Speaker A\/B, four pairs of terminals\u003c\/p\u003e\u003cp\u003e\u003cb\u003eHDMI Inputs:\u003c\/b\u003e 6 (3 supporting 8K)\u003c\/p\u003e\u003cp\u003e\u003cb\u003eHDMI Outputs:\u003c\/b\u003e 1 (ARC)\u003c\/p\u003e\u003cp\u003e\u003cb\u003eMaximum HDMI Video Resolution:\u003c\/b\u003e 8K\/60 Hz, 4K\/120 Hz\u003c\/p\u003e\u003cp\u003e\u003cb\u003eHDMI Upscaling:\u003c\/b\u003e 1080p\/4K to 8K\u003c\/p\u003e\u003cp\u003e\u003cb\u003eHDMI Copy Protection:\u003c\/b\u003e HDCP 2.3\u003c\/p\u003e\u003cp\u003e\u003cb\u003eHDR Compatibility:\u003c\/b\u003e HDR10, HDR10+, Dolby Vision, HLG, Dynamic HDR\u003c\/p\u003e\u003cp\u003e\u003cb\u003eGaming Features:\u003c\/b\u003e Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), Quick Frame Transport (QFT)\u003c\/p\u003e\u003cp\u003e\u003cb\u003eHDMI Features:\u003c\/b\u003e ARC, HDMI-CEC, standby pass-through\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAnalog Inputs:\u003c\/b\u003e 3 stereo RCA\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePhono Input:\u003c\/b\u003e Moving magnet (MM)\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDigital Inputs:\u003c\/b\u003e 1 optical (TOSLINK), 1 coaxial\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAnalog Outputs:\u003c\/b\u003e Fixed-level stereo RCA\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePreamplifier Outputs:\u003c\/b\u003e 2.2 channels\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSubwoofer Outputs:\u003c\/b\u003e 2\u003c\/p\u003e\u003cp\u003e\u003cb\u003eZone Outputs:\u003c\/b\u003e Stereo analog RCA\u003c\/p\u003e\u003cp\u003e\u003cb\u003eUSB Input:\u003c\/b\u003e USB-A for compatible storage devices\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSupported Audio Formats:\u003c\/b\u003e FLAC, WAV, ALAC, MP3, WMA, AAC, DSD\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePCM Resolution:\u003c\/b\u003e Up to 24-bit\/192 kHz\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDSD Support:\u003c\/b\u003e 2.8 MHz, 5.6 MHz\u003c\/p\u003e\u003cp\u003e\u003cb\u003eGapless Playback:\u003c\/b\u003e FLAC, WAV, ALAC, DSD\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCompressed Audio Enhancement:\u003c\/b\u003e Marantz M-DAX2\u003c\/p\u003e\u003cp\u003e\u003cb\u003eStreaming:\u003c\/b\u003e HEOS Built-in, Apple AirPlay 2, Bluetooth, Spotify Connect, internet radio\u003c\/p\u003e\u003cp\u003e\u003cb\u003eRoon Compatibility:\u003c\/b\u003e Roon Tested\u003c\/p\u003e\u003cp\u003e\u003cb\u003eInternet Radio:\u003c\/b\u003e TuneIn\u003c\/p\u003e\u003cp\u003e\u003cb\u003eWireless Networking:\u003c\/b\u003e Wi-Fi\u003c\/p\u003e\u003cp\u003e\u003cb\u003eWired Networking:\u003c\/b\u003e Ethernet\u003c\/p\u003e\u003cp\u003e\u003cb\u003eBluetooth:\u003c\/b\u003e Audio reception and headphone retransmission with volume control\u003c\/p\u003e\u003cp\u003e\u003cb\u003eTuner:\u003c\/b\u003e AM\/FM\u003c\/p\u003e\u003cp\u003e\u003cb\u003eListening Modes:\u003c\/b\u003e Stereo, Direct, Pure Direct\u003c\/p\u003e\u003cp\u003e\u003cb\u003eRemote Control:\u003c\/b\u003e RC-052SR\u003c\/p\u003e\u003cp\u003e\u003cb\u003eApp Control:\u003c\/b\u003e Marantz AVR Remote, HEOS\u003c\/p\u003e\u003cp\u003e\u003cb\u003eVoice Assistant Compatibility:\u003c\/b\u003e Amazon Alexa, Google Assistant, Apple HomePod\/Siri, Josh.ai\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCustom Installation:\u003c\/b\u003e IR and IP control, HDMI diagnostics\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDisplay:\u003c\/b\u003e Front-panel circular OLED\u003c\/p\u003e\u003cp\u003e\u003cb\u003eOn-Screen Interface:\u003c\/b\u003e Graphical setup assistant; English, Spanish, French\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFirmware Updates:\u003c\/b\u003e Network or USB\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePower Management:\u003c\/b\u003e Eco mode, automatic power-off, sleep timer\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePower Consumption:\u003c\/b\u003e 210 W\u003c\/p\u003e\u003cp\u003e\u003cb\u003eStandby Power Consumption:\u003c\/b\u003e 0.2 W\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCEC Standby Power Consumption:\u003c\/b\u003e 0.5 W\u003c\/p\u003e\u003cp\u003e\u003cb\u003eNetwork Standby Power Consumption:\u003c\/b\u003e Less than 2 W\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDimensions (H × W × D):\u003c\/b\u003e 4.3\" × 17.4\" × 14.7\" (109 × 442 × 373 mm), excluding antennas\u003c\/p\u003e","brand":"mysite","offers":[{"title":"Black","offer_id":67878315917389,"sku":"STEREO70S-BLK","price":478.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/2523\/7837\/files\/STEREO70S-Black_Image_studio-front-oncopy.jpg?v=1793591152","url":"https:\/\/woodlane.store\/products\/marantz-stereo-70s","provider":"WoodLane","version":"1.0","type":"link"}