{"product_id":"martinlogan-foundation-b1","title":"MartinLogan Foundation B1","description":"\u003cp\u003e\u003cstrong\u003eThe most compact model in the Motion Foundation series, sold as a pair: a two-way standmount with a Folded Motion S tweeter and a 14 cm aluminium woofer, suited to small rooms and to partnering with a subwoofer.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eFoundation B1: drivers and cabinet\u003c\/h2\u003e\n\u003cp\u003eThe Foundation B1 is a two-way speaker for a shelf or a stand, 34.6 cm tall and 18.4 cm wide, weighing 5.2 kg. MartinLogan intends it for small spaces and suggests adding a subwoofer where more extension is wanted: on its own it covers 48 Hz to 23 kHz within ±3 dB. It has threaded fixings for the brand's STAND25 stand, which gives it a stable footing when used on a stand.\u003c\/p\u003e\n\u003cp\u003eThe 14 cm woofer handles bass and midrange up to 3,400 Hz, where the two-way crossover passes the signal on to the tweeter. Its Unibody aluminium cone is mounted in a stamped steel basket and loaded into an asymmetrical chamber that counters resonances; the reflex port opens at the back of the cabinet. An 89 dB sensitivity and 5 ohm impedance suit it to amplifiers of 15 to 100 watts.\u003c\/p\u003e\n\u003cp\u003eThe tweeter is the same one fitted to the larger models: a second-generation Folded Motion S whose thin-film diaphragm is folded many times to give 22.6 cm² of surface in a 24 x 25 mm unit. Low moving mass and small excursion favour speed of response and the rendering of fine detail. The waveguide surrounding it controls its dispersion, 90° in both planes, and reduces the influence of room reflections.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eType: two-way standmount or shelf speaker, rear-ported\u003c\/li\u003e\u003cli\u003eFrequency range: 48 Hz to 23 kHz, ±3 dB\u003c\/li\u003e\u003cli\u003eImpedance: 5 ohms\u003c\/li\u003e\u003cli\u003eSensitivity: 89 dB\u003c\/li\u003e\u003cli\u003eAmplifier power: 15 to 100 W\u003c\/li\u003e\u003cli\u003eCrossover point: 3,400 Hz\u003c\/li\u003e\u003cli\u003eTweeter: 24 x 25 mm Folded Motion S Gen2, 22.6 cm² diaphragm\u003c\/li\u003e\u003cli\u003eTweeter coverage: 90° horizontal, 90° vertical\u003c\/li\u003e\u003cli\u003eWoofer: 14 cm Unibody aluminium cone, stamped steel basket\u003c\/li\u003e\u003cli\u003eCabinet: bass reflex, port at the rear\u003c\/li\u003e\u003cli\u003eTerminals: five-way posts, single-wire only\u003c\/li\u003e\u003cli\u003eGrille: magnetic cloth grille over the woofer\u003c\/li\u003e\u003cli\u003eMatching stand: STAND25 (threaded fixing)\u003c\/li\u003e\u003cli\u003eSize (H x W x D): 34.6 x 18.4 x 24.05 cm\u003c\/li\u003e\u003cli\u003eWeight: 5.2 kg\u003c\/li\u003e\u003cli\u003eSupplied: sold as a pair\u003c\/li\u003e\u003cli\u003eFinishes: black, white, walnut\u003c\/li\u003e\u003c\/ul\u003e","brand":"Martin Logan","offers":[{"title":"Nero","offer_id":47927267000664,"sku":"10606428238","price":619.0,"currency_code":"EUR","in_stock":true},{"title":"Bianco","offer_id":47927267033432,"sku":"10606428234","price":619.0,"currency_code":"EUR","in_stock":true},{"title":"Noce","offer_id":47927267066200,"sku":"10606428338","price":619.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0615\/5278\/7645\/files\/MartinLogan_Foundation-B1_black_01_fa3a4e4e-7c46-4ecc-ac1f-891f909e8666.jpg?v=1710148003","url":"https:\/\/videosell.it\/en\/products\/martinlogan-foundation-b1","provider":"Videosell store","version":"1.0","type":"link"}