{"product_id":"martinlogan-motion-foundation-b1-bookshelf-pair","title":"MartinLogan Motion Foundation B1 Bookshelf (Pair)","description":"\u003cdiv style=\"width:100%;max-width:100%;display:block;box-sizing:border-box;\"\u003e\n\u003ch2 style=\"width:100%;max-width:100%;box-sizing:border-box;\"\u003eMartinLogan Motion Foundation B1 Bookshelf Speaker\u003c\/h2\u003e\n\u003cp\u003eThe Motion Foundation B1 is the standmount that brings MartinLogan's folded tweeter into a price most systems can reach. That transducer is the reason to look at this speaker rather than a conventional dome design.\u003c\/p\u003e\n\u003cp\u003eFolded Motion works by pleating a thin diaphragm and squeezing air out from between the folds instead of pushing it forward. Moving mass drops sharply, and treble arrives with a speed that domes struggle to match at any price.\u003c\/p\u003e\n\u003cp\u003eAn aluminium mid-bass cone carries everything below the crossover, and the handover sits high, which keeps voices on a single driver through most of their range instead of splitting them.\u003c\/p\u003e\n\u003cp\u003eSensitivity is generous and the load is mild, so a modest integrated amplifier drives it properly. It suits a smaller room, or the rear channels of a system whose front speakers already share this tweeter.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.martinlogan.com\/en\/product\/motion-foundation-b1\" target=\"_blank\" rel=\"noopener\"\u003eMartinLogan Motion Foundation B1 official product page\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eMain Features\u003c\/h3\u003e\n\u003ctable style=\"width:100%;max-width:100%;table-layout:fixed;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eITEM\u003c\/th\u003e\n\u003cth\u003eDESCRIPTION\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFolded Motion tweeter\u003c\/td\u003e\n\u003ctd\u003eA pleated diaphragm with far less moving mass than a dome.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAluminium mid-bass cone\u003c\/td\u003e\n\u003ctd\u003eA stiff cone carrying the whole vocal band below the crossover.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh crossover point\u003c\/td\u003e\n\u003ctd\u003eVoices stay on one driver instead of being split across two.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGenerous sensitivity\u003c\/td\u003e\n\u003ctd\u003eDrives properly from a modest integrated amplifier.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange tweeter match\u003c\/td\u003e\n\u003ctd\u003eShares its treble character with the floorstanders above it.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%;max-width:100%;table-layout:fixed;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDETAIL\u003c\/th\u003e\n\u003cth\u003eVALUE\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDriver complement\u003c\/td\u003e\n\u003ctd\u003e1 x 0.94\" x 1\" (2.4 x 2.5cm) Gen2 Folded Motion Tweeter S, 1 x 5.5\" (14cm) aluminium cone mid-bass driver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e48 Hz - 23 kHz ± 3 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e89 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal impedance\u003c\/td\u003e\n\u003ctd\u003e5 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended amplifier power\u003c\/td\u003e\n\u003ctd\u003e15 - 100 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrossover frequency\u003c\/td\u003e\n\u003ctd\u003e3,400 Hz (2-way)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e34.6cm x 18.4cm x 24.05cm (13-11\/16\" x 7-1\/4\" x 9-1\/2\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e5.2 kg each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eIncluded Items\u003c\/h3\u003e\n\u003ctable style=\"width:100%;max-width:100%;table-layout:fixed;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eITEM\u003c\/th\u003e\n\u003cth\u003eQUANTITY\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotion Foundation B1 loudspeaker\u003c\/td\u003e\n\u003ctd\u003ePair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Martin Logan","offers":[{"title":"Walnut","offer_id":48857863291125,"sku":"FB1WNTpr","price":14890.0,"currency_code":"ZAR","in_stock":true},{"title":"White","offer_id":67606416982261,"sku":"FB1SWpr","price":14890.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/1731\/0453\/files\/fb1wntpr_xvcy.webp?v=1790943692","url":"https:\/\/shop.smartspaces.co.za\/products\/martinlogan-motion-foundation-b1-bookshelf-pair","provider":"Smart Spaces Shop","version":"1.0","type":"link"}