{"product_id":"sonance-is4-invisible-series-speakers","title":"Sonance IS4 Invisible Series Speakers","description":"The new benchmark for invisible speakers. The IS4 features state of the art planar diaphragm technology. The rigid metal frame and optional enclosure make this speaker the best sounding fully concealed speaker in the world.\u003cbr\u003e\u003cbr\u003e\n\nA subwoofer is recommended where budgets and space allows for absolute best performance.\u003cbr\u003e\u003cbr\u003e\n\n\nSpecifications:-\u003cbr\u003e\u003cbr\u003e\n   \n\nTweeter\n 4 sq. in (27 sq. cm) planar diaphragm, driven by a 1” (25mm) voice coil\u003cbr\u003e \n\nMidrange\n 17 sq. in (110 sq. cm) planar diaphragm, driven by a 1” (25mm) voice coil \u003cbr\u003e\n\nWoofer\n 113 sq. in (732 sq. cm) planar diaphragm, driven by a 2” (50mm) voice coil\u003cbr\u003e \n\nFrequency Response\n 40Hz – 20kHz ±3dB\u003cbr\u003e \n\nImpedance\n 8 ohms nominal\u003cbr\u003e \n\nPower Handling\n 100 watts RMS\u003cbr\u003e \n\nSensitivity\n 90dB (1W\/1 meter)\u003cbr\u003e \n\nDispersion\n \n170º hemispherical up to 10kHz\u003cbr\u003e\n \n\nFinish\n Paper surface ready for up to 1\/8” (3mm) flexible material and paint\u003cbr\u003e \n\nOverload Protection\n Three independent self-resetting gel switches (low, mid and high)\u003cbr\u003e \n\nCutout Dims - Without Enclosure (WxHxD)\n \n16-1\/8” x 24-1\/8” x 2” (409mm x 613mm x 51mm)\u003cbr\u003e\n \n\nCutout Dims - With Enclosure (WxHxD)\n \n16-1\/8” x 24-1\/8” x 3-13\/16” (409mm x 613mm x 97mm)\u003cbr\u003e\n \n\nEnclosure (WxHxD)\n \n14-3\/32” x 22-3\/32”x 2-1\/8” (358mm x 561mm x 54mm)\u003cbr\u003e\n \n\nShipping Weight\n 25 lbs (11.25 kg) pair\u003cbr\u003e \n\nEnvironment Temperature\n 0° - 125°F (-17.7 - 51.7°C) ","brand":"Sonance","offers":[{"title":"(pair)","offer_id":57409532395852,"sku":"SON-92966","price":1329.17,"currency_code":"GBP","in_stock":true},{"title":"(each)","offer_id":57422269120844,"sku":"SON-82966","price":745.0,"currency_code":"GBP","in_stock":true},{"title":"Sonance Invisible Series enclosure for IS4 (each)","offer_id":57422269153612,"sku":"SONANCEINVISENCFORIS4","price":130.83,"currency_code":"GBP","in_stock":true},{"title":"Sonance Pre-instal place saver for IS4","offer_id":57422269186380,"sku":"SONANCEPLACESAVERFORIS4","price":89.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Sonance-IS4.jpg?v=1777488045","url":"https:\/\/www.stoneaudio.co.uk\/products\/sonance-is4-invisible-series-speakers","provider":"Stone Audio","version":"1.0","type":"link"}