{"product_id":"be-yamamura-fostex-modified-2-mid-range-horn-compression-drive-unit-click-collect-only","title":"Be Yamamura Fostex Modified 2\" Mid Range Horn Compression Drive Unit (Click \u0026 Collect Only)","description":"\u003cdiv class=\"plain\"\u003eThe late Be Yamamura was a hugely inspirational figure, bringing an uncompromising approach to designing and building hi-end Hi-Fi systems to a wider audience outside his homeland of Japan. This item is from a system he design in the UK. \u003cbr\u003e\u003cbr\u003eThis is a pair of mid range horn compression drive units. They started out as a Fostex D502 or D506 (the only difference between those that I'm aware of is the diaphragm material). The drive units have had a massive rear chamber made from a billet of stainless steel fitted during the original modifications. These are incredibly heavy, I've weighed them at approximately 23kg each! They have a total length of 260mm and a diameter of 190mm. \u003cbr\u003e\u003cbr\u003eThese drivers use Alnico magnets and have a 50mm\/2\" exit and have the HA51 throat adaptor installed to give you the option of a square or round exit. I have measured the impedance and they are both approximately 11 Ohms at 10kHz. \u003c\/div\u003e\n\u003cdiv class=\"plain\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"plain\"\u003eDue to their weight and fragility these are collection only.\u003c\/div\u003e","brand":"Deco Audio Shop","offers":[{"title":"Default Title","offer_id":59478399025416,"sku":"da_beyam_compr","price":1500.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/3603\/7640\/files\/1000027697.jpg?v=1794499809","url":"https:\/\/decoaudioshop.co.uk\/products\/be-yamamura-fostex-modified-2-mid-range-horn-compression-drive-unit-click-collect-only","provider":"Deco Audio Shop","version":"1.0","type":"link"}