{"product_id":"kef-reference-4-meta","title":"KEF Reference 4 Meta","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,0,0\"\u003e\u003cb data-path-to-node=\"1,0,0\" data-index-in-node=\"0\"\u003eProgettazione:\u003c\/b\u003e Bass reflex a tre vie\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,1,0\"\u003e\u003cb data-path-to-node=\"1,1,0\" data-index-in-node=\"0\"\u003eAutista HF:\u003c\/b\u003e Cupola in alluminio da 25 mm con MAT\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,2,0\"\u003e\u003cb data-path-to-node=\"1,2,0\" data-index-in-node=\"0\"\u003eDriver MF:\u003c\/b\u003e Membrana in alluminio da 125 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,3,0\"\u003e\u003cb data-path-to-node=\"1,3,0\" data-index-in-node=\"0\"\u003eDriver LF:\u003c\/b\u003e Membrana in alluminio 4 x 165 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,4,0\"\u003e\u003cb data-path-to-node=\"1,4,0\" data-index-in-node=\"0\"\u003eGamma di frequenza in campo libero (-6 dB):\u003c\/b\u003e Porta corta: 43 Hz - 45 kHz \/ Porta lunga: 40 Hz - 45 kHz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,5,0\"\u003e\u003cb data-path-to-node=\"1,5,0\" data-index-in-node=\"0\"\u003eTipica risposta dei bassi nella stanza (-6 dB):\u003c\/b\u003e 33Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,6,0\"\u003e\u003cb data-path-to-node=\"1,6,0\" data-index-in-node=\"0\"\u003eRisposta in frequenza (±3 dB):\u003c\/b\u003e 48Hz – 35kHz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,7,0\"\u003e\u003cb data-path-to-node=\"1,7,0\" data-index-in-node=\"0\"\u003eFrequenza di crossover:\u003c\/b\u003e 450 Hz, 2,1 kHz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,8,0\"\u003e\u003cb data-path-to-node=\"1,8,0\" data-index-in-node=\"0\"\u003ePotenza dell'amplificatore consigliata:\u003c\/b\u003e 50 - 400 W\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,9,0\"\u003e\u003cb data-path-to-node=\"1,9,0\" data-index-in-node=\"0\"\u003eSensibilità (2,83 V\/ 1 m):\u003c\/b\u003e 88 dB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,10,0\"\u003e\u003cb data-path-to-node=\"1,10,0\" data-index-in-node=\"0\"\u003eDistorsione armonica (40 Hz - 100 kHz):\u003c\/b\u003e \u0026lt;0,5 %\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,11,0\"\u003e\u003cb data-path-to-node=\"1,11,0\" data-index-in-node=\"0\"\u003eDistorsione armonica (200 Hz - 2 kHz):\u003c\/b\u003e \u0026lt;0,2 %\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,12,0\"\u003e\u003cb data-path-to-node=\"1,12,0\" data-index-in-node=\"0\"\u003eDistorsione armonica (2 kHz - 20 kHz):\u003c\/b\u003e \u0026lt;0,1 %\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,13,0\"\u003e\u003cb data-path-to-node=\"1,13,0\" data-index-in-node=\"0\"\u003ePotenza di uscita massima (SPL):\u003c\/b\u003e 116dB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,14,0\"\u003e\u003cb data-path-to-node=\"1,14,0\" data-index-in-node=\"0\"\u003eImpedenza:\u003c\/b\u003e 4 \u003cspan class=\"math-inline\" data-math=\"\\Omega\" data-index-in-node=\"14\"\u003e$\\Omega$\u003c\/span\u003e (minimo 3.2 \u003cspan class=\"math-inline\" data-math=\"\\Omega\" data-index-in-node=\"31\"\u003e$\\Omega$\u003c\/span\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,15,0\"\u003e\u003cb data-path-to-node=\"1,15,0\" data-index-in-node=\"0\"\u003ePeso:\u003c\/b\u003e 45,2 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"1,16,0\"\u003e\u003cb data-path-to-node=\"1,16,0\" data-index-in-node=\"0\"\u003eDimensioni (A x L x P):\u003c\/b\u003e 205 x 1090 x 463 mm (incluso pannello frontale e connessioni)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KEF","offers":[{"title":"Noce \/ Argento","offer_id":54017979384154,"sku":null,"price":8500.0,"currency_code":"EUR","in_stock":true},{"title":"Nero\/Grigio","offer_id":54017979416922,"sku":null,"price":8500.0,"currency_code":"EUR","in_stock":true},{"title":"Bianco\/Blu","offer_id":54017979449690,"sku":null,"price":8500.0,"currency_code":"EUR","in_stock":true},{"title":"Bianco\/Champagne","offer_id":54017979482458,"sku":null,"price":8500.0,"currency_code":"EUR","in_stock":true},{"title":"Nero\/Rame","offer_id":54017979515226,"sku":null,"price":8500.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/9306\/7850\/files\/Ontwerpzondertitel-2026-04-18T112058.978.png?v=1776504189","url":"https:\/\/orange-audio.com\/it\/products\/kef-reference-4-meta","provider":"OrangeAudio","version":"1.0","type":"link"}