{"product_id":"marantz-model-m4","title":"Marantz MODEL M4 8-Channel Distribution Amplifier","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Marantz MODEL M4 is an 8-channel, four-zone rack-mount distribution amplifier powered by HEOS, built to deliver high-quality sound across multiple rooms. It’s engineered to handle streaming services, local sources, and TV audio via optical inputs, while offering excellent power and flexibility for multi-room audio setups.\u003c\/p\u003e\n\u003ch3\u003eKey Features (with “why it matters”)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e8 × 100 W (8 Ω) \/ 8 × 125 W (4 Ω)\u003c\/b\u003e\u003cbr\u003eAmple clean power to drive speakers even when multiple channels are active.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFour independent zones with HEOS streaming built-in\u003c\/b\u003e\u003cbr\u003eEach zone can play different content or be grouped, giving flexibility in multi-room installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVersatile inputs \u0026amp; outputs\u003c\/b\u003e\u003cbr\u003eMultiple analog, digital, and pre-outs plus subwoofer outputs let you integrate various sources and customize zone outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdjustable filters and sound modes\u003c\/b\u003e\u003cbr\u003eHigh-pass \/ low-pass filters, EQ, and sound modes like “Virtual” or “Dialog Enhancer” allow tuning to room acoustics or preferences.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBridge Mode\u003c\/b\u003e\u003cbr\u003eAllows combining channels for higher power output per zone, useful when fewer zones are in use but more headroom is needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMarantz Musical Digital Filtering (MMDF)\u003c\/b\u003e\u003cbr\u003eImproves digital audio quality, helping preserve detail and reduce artifacts in streamed or networked audio.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid black; padding: 6px;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"border: 1px solid black; padding: 6px;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eChannels\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003ePower (8 Ω, 20 Hz-20 kHz)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003e100 W × 8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003ePower (4 Ω)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003e125 W × 8 (1 kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eTHD (8 Ω)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003e0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003e20 Hz – 20 kHz, ±1 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eSpeaker Impedance Supported\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003e4 - 16 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eAnalog Inputs\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003e4 × Stereo RCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eDigital Inputs\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003e2 × Optical (TOSLINK)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003ePreouts \/ Subwoofer Outs\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003e4 × Stereo RCA Preouts, 4 × Mono Sub Out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eStreaming \/ Music Services\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eHEOS, Spotify Connect, Tidal, Amazon Music, TuneIn, SiriusXM, etc.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eControl \/ Networking\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eEthernet ×2, HEOS App (iOS \u0026amp; Android), 12V trigger per zone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eBridge Mode Capability\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eDimensions (W × H × D)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003e415 × 106 × 442 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eNot published\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eFinish\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid black; padding: 6px;\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat’s in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMarantz MODEL M4 amplifier unit\u003c\/li\u003e\n\u003cli\u003ePower cable\u003c\/li\u003e\n\u003cli\u003eUser manual \u0026amp; quick-start guide\u003c\/li\u003e\n\u003cli\u003eRack ears \/ mounting kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRecommended Use Cases \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePerfect for whole-home audio distribution in 4 zones (rooms) using one device.\u003c\/li\u003e\n\u003cli\u003eGreat for integrators needing flexibility – multiple input types, subwoofer outs, preouts.\u003c\/li\u003e\n\u003cli\u003eUseful in systems where some zones need high power and others less – Bridge Mode helps adapt.\u003c\/li\u003e\n\u003cli\u003eWorks well with HEOS ecosystem for synchronized\/grouped streaming or independent content per zone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Notes \/ Limitations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWeight not published – ensure rack or shelf can handle the unit size.\u003c\/li\u003e\n\u003cli\u003eNo wireless inputs beyond streaming – relies on wired digital\/analog inputs for local sources.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: Can I use this to power speakers in all four zones with full power?\u003c\/b\u003e\u003cbr\u003eYes, each of the 8 channels can deliver full power, though bridging channels gives higher power in fewer zones.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: What is Bridge Mode?\u003c\/b\u003e\u003cbr\u003eBridge Mode lets you combine two channels to act as one, increasing power output per zone where only two channels are needed.\u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Support\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer warranty applicable via Marantz \/ local authorised dealer.\u003c\/li\u003e\n\u003cli\u003eSupport and parts available from Marantz service network.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTrust Factors \u0026amp; Extras\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufactured in Shirakawa, Japan – consistent with Marantz’s high build quality.\u003c\/li\u003e\n\u003cli\u003ePart of the HEOS \/ Marantz MODEL series designed for integrators.\u003c\/li\u003e\n\u003cli\u003eStrong digital filtering (MMDF) to preserve detail across streaming and network sources.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Marantz","offers":[{"title":"Default Title","offer_id":52052008992981,"sku":null,"price":374900.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/5668\/2965\/files\/modelm4_image_2_na_8a189ad6-75cf-4c66-9163-0315a2b3af8b.webp?v=1758182370","url":"https:\/\/audiovisualkart.com\/products\/marantz-model-m4","provider":"Audio Visual Kart","version":"1.0","type":"link"}