{"product_id":"mj-acoustics-reference-400-subwoofer-open-box","title":"MJ Acoustics Reference 400 Subwoofer - Open Box","description":"\u003ch2\u003eSRP: $3299 In Black Ash Standard Finishes\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e$4099 Bespoke Finishes\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\n\u003cb\u003e\u003cspan data-contrast=\"auto\"\u003eMJ Acoustics Reference 400: Precision Bass, Uncompromised Power\u003c\/span\u003e\u003c\/b\u003e\u003cspan data-ccp-props='{\"134233117\":true,\"134233118\":true,\"201341983\":0,\"335559739\":160,\"335559740\":240}'\u003e \u003c\/span\u003e\n\u003c\/h3\u003e\n\u003ch3\u003e\n\u003cb\u003e\u003cspan data-contrast=\"auto\"\u003eExperience Bass Redefined.\u003c\/span\u003e\u003c\/b\u003e\u003cspan data-ccp-props='{\"134233117\":true,\"134233118\":true,\"201341983\":0,\"335559739\":160,\"335559740\":240}'\u003e \u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-contrast=\"auto\"\u003eThe MJ Acoustics Reference 400 is a testament to audio excellence. This compact powerhouse delivers deep, resonant bass without sacrificing precision or control.\u003c\/span\u003e\u003cspan data-ccp-props='{\"134233117\":true,\"134233118\":true,\"201341983\":0,\"335559739\":160,\"335559740\":240}'\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-contrast=\"auto\"\u003eEngineered with MJ Acoustics' renowned expertise, the Reference 400 boasts a powerful 250-watt amplifier and a 12-inch ultra-long-throw driver, ensuring exceptional bass response. Advanced features like variable crossovers, phase control, and multiple input options provide unparalleled customisation.\u003c\/span\u003e\u003cspan data-ccp-props='{\"134233117\":true,\"134233118\":true,\"201341983\":0,\"335559739\":160,\"335559740\":240}'\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-contrast=\"auto\"\u003eBut the Reference 400 isn't just about raw power. It's meticulously tuned to provide accurate, controlled bass that complements your music and movies flawlessly. Whether you're immersed in a blockbuster action film or enjoying your favourite symphony, this subwoofer delivers the depth and clarity to elevate your audio experience.\u003c\/span\u003e\u003cspan data-ccp-props='{\"134233117\":true,\"134233118\":true,\"201341983\":0,\"335559739\":160,\"335559740\":240}'\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-contrast=\"auto\"\u003eWith its versatile connectivity options and user-friendly controls, the Reference 400 is easy to integrate into any system. Experience the difference a dedicated subwoofer can make with the MJ Acoustics Reference 400.\u003c\/span\u003e\u003cspan data-ccp-props='{\"134233117\":true,\"134233118\":true,\"201341983\":0,\"335559739\":160,\"335559740\":240}'\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-ccp-props='{\"134233117\":true,\"134233118\":true,\"201341983\":0,\"335559739\":160,\"335559740\":240}'\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0786\/1017\/0133\/files\/Screenshot_2025-03-03_at_5.06.57_PM.png?v=1741039955\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003csection class=\"bde-section-569-105 bde-section\"\u003e\u003c\/section\u003e\n\u003csection class=\"bde-section-569-107 bde-section\"\u003e\n\u003cdiv class=\"section-container\"\u003e\n\u003cdiv class=\"bde-grid-569-128 bde-grid\"\u003e\n\u003cdiv class=\"bde-rich-text-569-116 bde-rich-text breakdance-rich-text-styles\"\u003e\n\u003csection class=\"bde-section-2233-105 bde-section\"\u003e\n\u003cdiv class=\"section-container\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003csection class=\"bde-section-1563-105 bde-section\"\u003e\n\u003cdiv class=\"section-container\"\u003e\n\u003csection class=\"bde-section-585-133 bde-section\"\u003e\n\u003cdiv class=\"section-container\"\u003e\n\u003csection class=\"bde-section-595-105 bde-section\"\u003e\n\u003cdiv class=\"section-container\"\u003e\n\u003csection class=\"bde-section-593-105 bde-section\"\u003e\n\u003cdiv class=\"section-container\"\u003e\n\u003ch3 class=\"bde-heading-593-106 bde-heading\"\u003eMJ Reference 400 Subwoofer | Detailed Specifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"bde-section-593-107 bde-section\"\u003e\n\u003cdiv class=\"section-container\"\u003e\n\u003cdiv class=\"bde-grid-593-129 bde-grid\"\u003e\n\u003cdiv class=\"bde-rich-text-593-108 bde-rich-text breakdance-rich-text-styles\"\u003e\n\u003ch3\u003eAmplifier\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"NormalTextRun SCXW160143046 BCX0\"\u003e2\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW160143046 BCX0\"\u003e50\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW160143046 BCX0\"\u003e-Watt Class A\/B\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"NormalTextRun SpellingErrorV2Themed SCXW160143046 BCX0\"\u003eMosfet\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW160143046 BCX0\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eFrequency Response\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"NormalTextRun SCXW167701890 BCX0\"\u003e1\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW167701890 BCX0\"\u003e0\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW167701890 BCX0\"\u003eHz – 200Hz \u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eCrossover Range\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"TextRun SCXW139652018 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW139652018 BCX0\"\u003e20Hz – 120Hz\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"TextRun SCXW139652018 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW139652018 BCX0\"\u003eWith\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW139652018 BCX0\"\u003e\u003cspan\u003e \u003c\/span\u003e(200Hz Bypass)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bde-rich-text-593-109 bde-rich-text breakdance-rich-text-styles\"\u003e\n\u003ch3\u003eDriver\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"NormalTextRun SCXW224077045 BCX0\"\u003e1\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW224077045 BCX0\"\u003e2\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW224077045 BCX0\"\u003e\u003cspan\u003e \u003c\/span\u003eIn\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW224077045 BCX0\"\u003ech\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW224077045 BCX0\"\u003e\u003cspan\u003e \u003c\/span\u003e(\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW224077045 BCX0\"\u003e300\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW224077045 BCX0\"\u003emm)\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eUltra Long Throw\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eHeavy Duty Steel Basket\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eDual high intensity full saturation magnets\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eExtended pole piece\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bde-rich-text-593-110 bde-rich-text breakdance-rich-text-styles\"\u003e\n\u003ch3\u003eInput Connectors\u003c\/h3\u003e\n\u003cp\u003eHigh level : Neutrik speakON\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan class=\"TextRun SCXW3650042 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003eLow Level :\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"TextRun SCXW3650042 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003e2\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003e\u003cspan\u003e \u003c\/span\u003ex\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"TextRun SCXW3650042 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003eRCA\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"TextRun SCXW3650042 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003e(24 Karat Gold Plated)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan class=\"TextRun SCXW3650042 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003eLFE :\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"TextRun SCXW3650042 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003e1\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003e\u003cspan\u003e \u003c\/span\u003ex\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003e \u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"TextRun SCXW3650042 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003eRCA\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"TextRun SCXW3650042 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003e(24 Karat Gold Plated)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan class=\"TextRun SCXW3650042 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003eLFE \/ Centre :\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003e1\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003e\u003cspan\u003e \u003c\/span\u003ex\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003e \u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"TextRun SCXW3650042 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003eRCA\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"TextRun SCXW3650042 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW3650042 BCX0\"\u003e(24 Karat Gold Plated)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bde-rich-text-593-111 bde-rich-text breakdance-rich-text-styles\"\u003e\n\u003ch3\u003eGain Control\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"TextRun SCXW67929156 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW67929156 BCX0\"\u003e-99   –   0 dB\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bde-rich-text-593-112 bde-rich-text breakdance-rich-text-styles\"\u003e\n\u003ch3\u003ePhase Control\u003c\/h3\u003e\n\u003cp\u003e0 – 180° with 1° Increments\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bde-rich-text-593-113 bde-rich-text breakdance-rich-text-styles\"\u003e\n\u003ch3\u003eRemote Control\u003c\/h3\u003e\n\u003cp\u003eSmart Remote App ( IOS \/ Android )\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eRM1 and Eye Kit    (Sold Separately)\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bde-rich-text-593-114 bde-rich-text breakdance-rich-text-styles\"\u003e\n\u003ch3\u003eElectronics\u003c\/h3\u003e\n\u003cp\u003eD.I.P. (Dynamic Intelligent Protection)\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eD.A.M.P. (Digitally accurate Mirco-Processor) 3\u003csup\u003erd\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eGen\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eDigital Display with Output Meter\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e12-Volt Trigger Input\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eAuto On \/ Off Circuit (with sensitivity adjustments)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bde-rich-text-593-115 bde-rich-text breakdance-rich-text-styles\"\u003e\n\u003ch3\u003eCabinet\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"TextRun SCXW129610685 BCX0\" lang=\"EN-GB\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW129610685 BCX0\"\u003e18 \/ 25mm Acoustically Inert Veneer Balanced MDF\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"EOP SCXW129610685 BCX0\" data-ccp-props='{\"134233117\":true,\"134233118\":true,\"201341983\":0,\"335559685\":720,\"335559739\":160,\"335559740\":240,\"335559991\":720}'\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"NormalTextRun SCXW230786985 BCX0\"\u003e3\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW230786985 BCX0\"\u003e45\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW230786985 BCX0\"\u003e\u003cspan\u003e \u003c\/span\u003ex 3\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW230786985 BCX0\"\u003e8\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW230786985 BCX0\"\u003e5 x 3\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW230786985 BCX0\"\u003e45\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW230786985 BCX0\"\u003emm (W x H x D)\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eWeight\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"NormalTextRun SCXW12777107 BCX0\"\u003e18\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW12777107 BCX0\"\u003e.95\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW12777107 BCX0\"\u003e\u003cspan\u003e \u003c\/span\u003eKg\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bde-rich-text-593-116 bde-rich-text breakdance-rich-text-styles\"\u003e\n\u003ch3\u003eFinish\u003c\/h3\u003e\n\u003cp\u003eBlack Ash  (Standard)\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e Light Oak  (Standard)\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eAmerican Black Walnut  (Standard)\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e Cherry  (Standard)\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eCustom Veneer  (Additional Cost)\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eCustom Paint  (Additional Cost)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"MJ Acoustics","offers":[{"title":"Real Wood Black Ash","offer_id":48919003496725,"sku":"MJAREF400BA-OPEN","price":1500.0,"currency_code":"USD","in_stock":true},{"title":"Black Cabinet with Oak Stand Inlay","offer_id":48919003529493,"sku":"MJAREF400LO-OPEN","price":1979.0,"currency_code":"USD","in_stock":false},{"title":"American Black Walnut","offer_id":48919003562261,"sku":"MJAREF400WAL-OPEN","price":1979.0,"currency_code":"USD","in_stock":true},{"title":"Cherry","offer_id":48919003595029,"sku":"MJAREF400CH-OPEN","price":1979.0,"currency_code":"USD","in_stock":false},{"title":"Bespoke Veneer","offer_id":48919003627797,"sku":"MJAREF400CUSTOM-OPEN","price":2459.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1017\/0133\/files\/reference-400-1536x1536.png?v=1760655107","url":"https:\/\/playbackdistribution.com\/products\/mj-acoustics-reference-400-subwoofer-open-box","provider":"Playback Distribution","version":"1.0","type":"link"}