{ "id":15940477583742, "title":"Visaton K 28.40 8 Ohm, 1.1 x 1.6 Inch, Miniature Speaker","handle":"visaton-k-28-40-8-miniature-speaker-art-no-2945", "description":"\u003cp\u003eA small 8 Ω rectangular driver for audio in compact electronic equipment.\u003c\/p\u003e\u003cp\u003eThe K 28.40 combines a paper cone, plastic frame and neodymium magnet in a narrow rectangular format. Four fixing holes allow it to be mounted behind a small front-panel opening.\u003c\/p\u003e\u003ch3\u003eKey details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Rectangular speaker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e 8 Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower \/ taps:\u003c\/strong\u003e 2 W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency range:\u003c\/strong\u003e 230–20000 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e 2.8 × 4 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting \/ feature:\u003c\/strong\u003e 26 × 37 mm cut-out\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCompact multimedia equipment\u003c\/li\u003e\n\u003cli\u003eBuilt-in music, speech and prompts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRated power\u003c\/th\u003e\n\u003ctd\u003e2 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum power\u003c\/th\u003e\n\u003ctd\u003e3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eNominal impedance\u003c\/th\u003e\n\u003ctd\u003e8 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003e230–20000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMean sound pressure level\u003c\/th\u003e\n\u003ctd\u003e79 dB (1 W\/1 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eResonance frequency fs\u003c\/th\u003e\n\u003ctd\u003e450 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eVoice coil diameter\u003c\/th\u003e\n\u003ctd\u003e14 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHeight of winding\u003c\/th\u003e\n\u003ctd\u003e3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCutout diameter\u003c\/th\u003e\n\u003ctd\u003e26 x 37 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eNet weight\u003c\/th\u003e\n\u003ctd\u003e0.014 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eConnections\u003c\/th\u003e\n\u003ctd\u003eSolder lugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCheck the 26 × 37 mm cut-out and four fixing positions against the drawing.\u003c\/li\u003e\n\u003cli\u003eUse an 8 Ω-compatible amplifier and solder strain-relieved leads to the lugs without prolonged heating.\u003c\/li\u003e\n\u003cli\u003eSeal the frame to the baffle and keep the cone clear. Confirm the required operating-temperature limits before a temperature-critical design.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDownloads\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.visaton.de\/sites\/default\/files\/dd_product\/K%2028.40_2945.pdf\"\u003eManufacturer datasheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.visaton.de\/en\/products\/drivers\/miniature-speakers\/k-2840-8-ohm\"\u003eManufacturer product page\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e", "published_at":"2026-09-10T13:31:34", "created_at":"2026-06-02T13:28:21", "vendor":"Visaton", "type":"Speaker driver", "tags":["8 Ω","Driver","Impedance_8 Ohm","K","Loudspeaker","New Products","speaker","Type_Miniature Speaker","Visaton","Visaton Miniature Speakers"], "price":626, "price_min":626, "price_max":626, "price_varies":false, "compare_at_price":null, "compare_at_price_min":0, "compare_at_price_max":0, "compare_at_price_varies":true, "all_variant_ids":[57499383398782], "variants":[{ "id":57499383398782, "product_id":15940477583742, "product_handle":"visaton-k-28-40-8-miniature-speaker-art-no-2945", "title":"Default Title", "option1":"Default Title", "option2":null, "option3":null, "sku":"2945", "requires_shipping":true, "taxable":true, "featured_image":null,"image_id":null, "available":true, "name":"Visaton K 28.40 8 Ohm, 1.1 x 1.6 Inch, Miniature Speaker - Default Title", "options":["Default Title"], "price":626, "weight":14, "compare_at_price":null, "inventory_quantity":0, "inventory_management":"shopify", "inventory_policy":"continue", "inventory_in_cart":0, "inventory_remaining":0, "incoming":false, "next_incoming_date":null, "taxable":true, "barcode":null}], "available":true,"images":["\/\/impactaudio.co.uk\/cdn\/shop\/files\/k28_40_1.jpg?v=1789040844"],"featured_image":"\/\/impactaudio.co.uk\/cdn\/shop\/files\/k28_40_1.jpg?v=1789040844", "options":["Title"], "url":"\/products\/visaton-k-28-40-8-miniature-speaker-art-no-2945"}