{"id":2939,"date":"2021-02-10T14:52:47","date_gmt":"2021-02-10T14:52:47","guid":{"rendered":"https:\/\/sica.it\/?post_type=product&#038;p=2939"},"modified":"2025-07-30T10:57:11","modified_gmt":"2025-07-30T10:57:11","slug":"18-pf-4","status":"publish","type":"product","link":"https:\/\/sica.it\/it\/prodotto\/18-pf-4\/","title":{"rendered":"18 PF 4"},"content":{"rendered":"<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-2458 size-full\" src=\"https:\/\/sica.it\/wp-content\/uploads\/2021\/02\/Z008394-1.jpg\" alt=\"\" width=\"1080\" height=\"578\" srcset=\"https:\/\/sica.it\/wp-content\/uploads\/2021\/02\/Z008394-1.jpg 1080w, https:\/\/sica.it\/wp-content\/uploads\/2021\/02\/Z008394-1-300x161.jpg 300w, https:\/\/sica.it\/wp-content\/uploads\/2021\/02\/Z008394-1-1024x548.jpg 1024w, https:\/\/sica.it\/wp-content\/uploads\/2021\/02\/Z008394-1-768x411.jpg 768w, https:\/\/sica.it\/wp-content\/uploads\/2021\/02\/Z008394-1-600x321.jpg 600w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Potenza nominale misurata con un test di 2 ore con segnale di rumore rosa, fattore di cresta di 6 dB, altoparlante in aria libera, potenza calcolata su Zmin nominale<\/li>\n<li>La potenza in programma continuo \u00e8 definita come 3 dB superiore alla potenza nominale.<\/li>\n<li>Sensibilit\u00e0 calcolata tramite i parametri di Thiele e Small; per la media SPL nel riquadro, fare riferimento alla risposta in frequenza.<\/li>\n<li>Parametri di Thiele e Small misurati con sistema laser dopo il test di precondizionamento<\/li>\n<li>Xmax misurato rispetto a un THD di 10%<\/li>\n<li>Valore Xvar corrispondente a un decadimento del fattore di forza, o della compliance, o di entrambi, pari al 50% del valore del piccolo segnale.<\/li>\n<li>A causa del continuo miglioramento del prodotto, le caratteristiche e il design sono soggetti a modifiche senza preavviso.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<h3 class=\"product_label product_label_subwoofer\"><span style=\"color: #008f32;\">Subwoofer<br \/>\n<\/span>Codice:\u00a0<strong>Z008394<\/strong><\/h3>\n<p><span class=\"bigsica\" style=\"font-size: 14pt;\">18 pollici <span class=\"smallsica\">Diametro nominale<\/span><br \/>\n<span class=\"smallsica\">Bobina mobile a sandwich da 4\u2033 con supporto in fibra di vetro<\/span><br \/>\n<span class=\"smallsica\">Double Cross Konex Spider with Progressive Waves<br \/>\nBordo in tela a tripla onda<br \/>\n<span style=\"font-size: 14pt;\">Trattamento conico totalmente impermeabile<\/span><br \/>\n<\/span><span class=\"smallsica\">Circuito con magnete in ferrite ad alta escursione<br \/>\n<\/span>Magnete ventilato e bobina mobile<br \/>\nCestello in alluminio pressofuso<br \/>\nPotenza 2400 W<br \/>\n96.3 dB <span class=\"smallsica\">Sensibilit\u00e0<\/span><br \/>\n35-700 Hz <span class=\"smallsica\">Gamma di frequenza<\/span>\u00a0<\/span><\/p>","protected":false},"featured_media":2330,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[75,90,31],"product_tag":[592],"class_list":["post-2939","product","type-product","status-publish","has-post-thumbnail","product_cat-75","product_cat-ferrite","product_cat-subwoofer","product_tag-sica","first","instock","shipping-taxable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>18 PF 4 - Sica Loudspeakers<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sica.it\/it\/prodotto\/18-pf-4\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"18 PF 4 - Sica Loudspeakers\" \/>\n<meta property=\"og:description\" content=\"Subwoofer Code:\u00a0Z008394 18\u2033 Nominal Diameter 4\u2033 Sandwich Voice Coil with Fiberglass Former Double Cross Konex Spider with Progressive Waves Triple Roll Cloth Surround Total Waterproof Cone Treatment High Excursion Ferrite Magnet Circuit Ventilated Magnet and Voice Coil Aluminium Die-Cast Basket 2400 W Power 96.3 dB Sensitivity 35-700 Hz Frequency range\u00a0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sica.it\/it\/prodotto\/18-pf-4\/\" \/>\n<meta property=\"og:site_name\" content=\"Sica Loudspeakers\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-30T10:57:11+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sica.it\/wp-content\/uploads\/2021\/02\/Z008394.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"1191\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Tempo di lettura stimato\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minuto\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/sica.it\\\/prodotto\\\/18-pf-4\\\/\",\"url\":\"https:\\\/\\\/sica.it\\\/prodotto\\\/18-pf-4\\\/\",\"name\":\"18 PF 4 - Sica Loudspeakers\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/sica.it\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/sica.it\\\/prodotto\\\/18-pf-4\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/sica.it\\\/prodotto\\\/18-pf-4\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/sica.it\\\/wp-content\\\/uploads\\\/2021\\\/02\\\/Z008394.jpg\",\"datePublished\":\"2021-02-10T14:52:47+00:00\",\"dateModified\":\"2025-07-30T10:57:11+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/sica.it\\\/prodotto\\\/18-pf-4\\\/#breadcrumb\"},\"inLanguage\":\"it-IT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/sica.it\\\/prodotto\\\/18-pf-4\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"it-IT\",\"@id\":\"https:\\\/\\\/sica.it\\\/prodotto\\\/18-pf-4\\\/#primaryimage\",\"url\":\"https:\\\/\\\/sica.it\\\/wp-content\\\/uploads\\\/2021\\\/02\\\/Z008394.jpg\",\"contentUrl\":\"https:\\\/\\\/sica.it\\\/wp-content\\\/uploads\\\/2021\\\/02\\\/Z008394.jpg\",\"width\":1200,\"height\":1191},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/sica.it\\\/prodotto\\\/18-pf-4\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/sica.it\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Products\",\"item\":\"https:\\\/\\\/sica.it\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"18 PF 4\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/sica.it\\\/#website\",\"url\":\"https:\\\/\\\/sica.it\\\/\",\"name\":\"Sica Loudspeakers\",\"description\":\"Two Brands, One Passion: Great Sound\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/sica.it\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"it-IT\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"18 PF 4 - Sica Loudspeakers","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/sica.it\/it\/prodotto\/18-pf-4\/","og_locale":"it_IT","og_type":"article","og_title":"18 PF 4 - Sica Loudspeakers","og_description":"Subwoofer Code:\u00a0Z008394 18\u2033 Nominal Diameter 4\u2033 Sandwich Voice Coil with Fiberglass Former Double Cross Konex Spider with Progressive Waves Triple Roll Cloth Surround Total Waterproof Cone Treatment High Excursion Ferrite Magnet Circuit Ventilated Magnet and Voice Coil Aluminium Die-Cast Basket 2400 W Power 96.3 dB Sensitivity 35-700 Hz Frequency range\u00a0","og_url":"https:\/\/sica.it\/it\/prodotto\/18-pf-4\/","og_site_name":"Sica Loudspeakers","article_modified_time":"2025-07-30T10:57:11+00:00","og_image":[{"width":1200,"height":1191,"url":"https:\/\/sica.it\/wp-content\/uploads\/2021\/02\/Z008394.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Tempo di lettura stimato":"1 minuto"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/sica.it\/prodotto\/18-pf-4\/","url":"https:\/\/sica.it\/prodotto\/18-pf-4\/","name":"18 PF 4 - Sica Loudspeakers","isPartOf":{"@id":"https:\/\/sica.it\/#website"},"primaryImageOfPage":{"@id":"https:\/\/sica.it\/prodotto\/18-pf-4\/#primaryimage"},"image":{"@id":"https:\/\/sica.it\/prodotto\/18-pf-4\/#primaryimage"},"thumbnailUrl":"https:\/\/sica.it\/wp-content\/uploads\/2021\/02\/Z008394.jpg","datePublished":"2021-02-10T14:52:47+00:00","dateModified":"2025-07-30T10:57:11+00:00","breadcrumb":{"@id":"https:\/\/sica.it\/prodotto\/18-pf-4\/#breadcrumb"},"inLanguage":"it-IT","potentialAction":[{"@type":"ReadAction","target":["https:\/\/sica.it\/prodotto\/18-pf-4\/"]}]},{"@type":"ImageObject","inLanguage":"it-IT","@id":"https:\/\/sica.it\/prodotto\/18-pf-4\/#primaryimage","url":"https:\/\/sica.it\/wp-content\/uploads\/2021\/02\/Z008394.jpg","contentUrl":"https:\/\/sica.it\/wp-content\/uploads\/2021\/02\/Z008394.jpg","width":1200,"height":1191},{"@type":"BreadcrumbList","@id":"https:\/\/sica.it\/prodotto\/18-pf-4\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/sica.it\/"},{"@type":"ListItem","position":2,"name":"Products","item":"https:\/\/sica.it\/shop\/"},{"@type":"ListItem","position":3,"name":"18 PF 4"}]},{"@type":"WebSite","@id":"https:\/\/sica.it\/#website","url":"https:\/\/sica.it\/","name":"Altoparlanti Sica","description":"Due marchi, una passione: un suono eccezionale","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/sica.it\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"it-IT"}]}},"_links":{"self":[{"href":"https:\/\/sica.it\/it\/wp-json\/wp\/v2\/product\/2939","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sica.it\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/sica.it\/it\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":3,"href":"https:\/\/sica.it\/it\/wp-json\/wp\/v2\/product\/2939\/revisions"}],"predecessor-version":[{"id":9559,"href":"https:\/\/sica.it\/it\/wp-json\/wp\/v2\/product\/2939\/revisions\/9559"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sica.it\/it\/wp-json\/wp\/v2\/media\/2330"}],"wp:attachment":[{"href":"https:\/\/sica.it\/it\/wp-json\/wp\/v2\/media?parent=2939"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/sica.it\/it\/wp-json\/wp\/v2\/product_brand?post=2939"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/sica.it\/it\/wp-json\/wp\/v2\/product_cat?post=2939"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/sica.it\/it\/wp-json\/wp\/v2\/product_tag?post=2939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}