{"product_id":"grhm-ls58","title":"Graham Audio LS5\/8 Loudspeakers","description":"\n\u003cp\u003eThe LS5\/8 is the BBC's flagship design, and was developed because of the need for higher sound pressure levels and greater transparency and consistency than the ageing LS5\/5 offered. This was the first BBC loudspeaker to use a polypropylene diaphragm which, being lighter than Bextrene, offered greater efficiency and lower colouration. A carefully researched cone profile enables the unit to work successfully well into the midrange.\u003cbr\u003e\u003cbr\u003eAfter many months of intensive development, the Graham Audio LS5\/8 refines the concept further. Designed in conjunction with Derek Hughes and Volt Loudspeakers and manufactured under license in the UK, it features a unique 12 inch bass\/mid unit that is married to the same 34mm Audax tweeter that is used in the LS5\/9.\u003cbr\u003e\u003cbr\u003eAs with all Graham Audio's BBC monitors, the cabinet is a finely tuned structure that uses high quality birch plywood and hardwood batons. The 12mm panels are mass-loaded to move resonances away from the midrange region and Rockwool is used in preference to cheap foam for air damping.\u003cbr\u003e\u003cbr\u003eThe design retains the same midrange clarity and balance of the LS5\/9, but offers an extended bass response and greater authority at high level in larger rooms. The continuity of sound quality between the two designs means that engineers can move between the two different loudspeakers with complete confidence during the recording and mastering process.\u003cbr\u003e\u003cbr\u003eThe LS5\/8 was originally conceived as an active design, but Derek Hughes has designed a passive crossover that greatly improves on the resolution and imaging of the original design while still conforming to the demanding BBC specification.\u003c\/p\u003e\n\u003ch1\u003eTechnical Specifications\u003c\/h1\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem\u003c\/td\u003e\n\u003ctd\u003e2 Way, reflex loading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure\u003c\/td\u003e\n\u003ctd\u003eThin wall construction, birch plywood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eReal wood veneer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (w\/h\/d)\u003c\/td\u003e\n\u003ctd\u003e76cm by 46cm by 40cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e34kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e40Hz to 16kHz, ±3dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal impedance\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e89dB SPL (2.83V, 1m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum output\u003c\/td\u003e\n\u003ctd\u003eOver 110dB for a pair at 2m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass\/midrange\u003c\/td\u003e\n\u003ctd\u003e300mm Diaphnatone polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTweeter\u003c\/td\u003e\n\u003ctd\u003eSon Audax HD13D34H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended amplifier power\u003c\/td\u003e\n\u003ctd\u003e50 to 200 watts unclipped programme\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eManufacturer Site\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e\u003ca\u003eGraham Audio\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n","brand":"Graham Audio","offers":[{"title":"Cherry","offer_id":52740187717898,"sku":"GRAHAMAUDI-5575","price":7785.0,"currency_code":"GBP","in_stock":true},{"title":"Oak","offer_id":52740187750666,"sku":"GRAHAMAUDI-5576","price":7785.0,"currency_code":"GBP","in_stock":true},{"title":"Ebony","offer_id":52740187783434,"sku":"GRAHAMAUDI-5577","price":8452.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/3283\/6618\/files\/graham-audio-ls5-8-loudspeakers-20905-p.png?v=1773934477","url":"https:\/\/audioemotion.co.uk\/products\/grhm-ls58","provider":"Audio Emotion Limited","version":"1.0","type":"link"}