{"product_id":"martinlogan-motion-foundation-b1-bookshelf-speakers-satin-white","title":"MartinLogan Motion Foundation B1 Bookshelf Speakers (Satin White, Pair)","description":"\u003ch2\u003eMartinLogan Motion Foundation B1 Bookshelf Speakers (Satin White, Pair)\u003c\/h2\u003e\n\n\u003cp\u003eCompact in size, captivating in sound — the \u003cstrong\u003eMartinLogan Motion Foundation B1\u003c\/strong\u003e is the entry point into MartinLogan's celebrated Motion Foundation series, and it makes no compromises where it counts. At its heart sits MartinLogan's iconic \u003cstrong\u003eFolded Motion® tweeter\u003c\/strong\u003e, a technology derived from their flagship electrostatic designs, delivering the kind of airy, precise high-frequency detail that transforms a good recording into a great listening experience.\u003c\/p\u003e\n\n\u003cp\u003ePaired with a purpose-built \u003cstrong\u003e4\" aluminium cone woofer\u003c\/strong\u003e and a rear-ported bass-reflex cabinet, the B1 punches well above its weight class — whether mounted on stands in a dedicated stereo setup, used as surround speakers in a home theatre, or tucked neatly onto a bookshelf. The \u003cstrong\u003eSatin White\u003c\/strong\u003e finish keeps things clean and contemporary. Sold as a \u003cstrong\u003ematched pair\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFolded Motion® Tweeter\u003c\/strong\u003e — ultra-low mass diaphragm for fast transient response and exceptional clarity in the high frequencies\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4\" Aluminium Cone Woofer\u003c\/strong\u003e — rigid, lightweight cone for accurate and dynamic midrange and bass reproduction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBass-Reflex Enclosure\u003c\/strong\u003e — rear-ported cabinet design extends low-frequency output and improves efficiency\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Frequency Response\u003c\/strong\u003e — 80 Hz to 20 kHz (±3 dB) for full musical reproduction from a compact cabinet\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4 Ohm Nominal Impedance\u003c\/strong\u003e — compatible with a wide range of stereo amplifiers and AV receivers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMagnetically Attachable Grille\u003c\/strong\u003e — tool-free grille removal for a refined, uncluttered aesthetic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5-Way Gold-Plated Binding Posts\u003c\/strong\u003e — accepts bare wire, banana plugs, and spade connectors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSatin White Cabinet\u003c\/strong\u003e — sleek finish that integrates beautifully into modern living spaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eValue\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTweeter\u003c\/td\u003e\n\u003ctd\u003eFolded Motion® (0.9\" × 1.4\" radiating area)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWoofer\u003c\/td\u003e\n\u003ctd\u003e4\" Aluminium Cone with Non-resonance Basket\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e80 – 20,000 Hz (±3 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e90 dB \/ 2.83V \/ m\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eNominal Impedance\u003c\/td\u003e\n\u003ctd\u003e4 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRecommended Amplifier Power\u003c\/td\u003e\n\u003ctd\u003e20 – 100 Watts per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCrossover Frequency\u003c\/td\u003e\n\u003ctd\u003e3,200 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCrossover Topology\u003c\/td\u003e\n\u003ctd\u003e2nd-order electro-acoustic\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eBass-Reflex (Rear-Ported)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions (H × W × D)\u003c\/td\u003e\n\u003ctd\u003e245 × 148 × 200 mm (9.6\" × 5.8\" × 7.9\")\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWeight (each)\u003c\/td\u003e\n\u003ctd\u003e4.3 kg (9.5 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eSatin White\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eGrille\u003c\/td\u003e\n\u003ctd\u003eMagnetically Attachable, Black Cloth\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBinding Posts\u003c\/td\u003e\n\u003ctd\u003e5-Way Gold-Plated\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSold As\u003c\/td\u003e\n\u003ctd\u003ePair\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eMLFB1W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eGoogle Product Category\u003c\/td\u003e\n\u003ctd\u003eElectronics \u0026gt; Audio \u0026gt; Speakers (ID: 249)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"MartinLogan","offers":[{"title":"Default Title","offer_id":42908169404510,"sku":null,"price":11190.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2577\/1494\/files\/3a5bd9ab053cc78977357733eb161af91c363214_426940_1___84612.jpg?v=1781863053","url":"https:\/\/www.ultrasound.co.za\/products\/martinlogan-motion-foundation-b1-bookshelf-speakers-satin-white","provider":"Ultra Sound \u0026 Vision","version":"1.0","type":"link"}