{"id":574,"date":"2016-08-28T21:49:43","date_gmt":"2016-08-28T21:49:43","guid":{"rendered":"http:\/\/www.professionistidelsuono.net\/blog_audio\/?p=574"},"modified":"2016-08-28T12:54:01","modified_gmt":"2016-08-28T12:54:01","slug":"subwoofer-a-tromba-cose","status":"publish","type":"post","link":"https:\/\/www.professionistidelsuono.net\/blog_audio\/subwoofer-a-tromba-cose\/","title":{"rendered":"Subwoofer a tromba &#8211; Cos&#8217;\u00e8?"},"content":{"rendered":"<p align=\"left\">Il sistemi di caricameto acustico visti finora possono essere definiti a radiazione diretta, cio\u00e8 il diaframma dell&#8217;altoparlante irradia direttamente nell&#8217;ambiente circostante. Nei sistemi a tromba invece, tra il diaframma e l&#8217;ambiente viene interposto un dispositivo, la tromba appunto, che amplifica il rendimento dell&#8217;altoparlante ed in funzione delle sue caratteristiche geometriche consente di controllare la direttivit\u00e0 dell&#8217;emissione. Strutturalmente la tromba \u00e8 costituita da un condotto a sezione crescente che raccorda<br \/>\ndue superfici: la gola che \u00e8 affacciata al diaframma dell&#8217;altoparlante e la bocca che \u00e8 affacciata all&#8217;ambiente. La progressione della variazione di sezione del condotto dalla gola alla bocca \u00e8 regolata da precise relazioni matematiche che definiscono la\u00a0tipologia della tromba stessa: esponenziale, conica, iperbolica ecc.<br \/>\nMolto spesso per ovviare alla eccessiva lunghezza si usa ripiegare il condotto in pi\u00f9 tratti. In relazione alle caratteristiche di alto rendimento ed agli ingombri non proprio contenuti i sistemi a tromba vengono impiegati in massima parte nel settore professionale, ma sono molti i loro estimatori anche nell&#8217;alta fedelt\u00e0.<\/p>\n<p align=\"center\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/www.professionistidelsuono.net\/immagini\/tromba1.jpg?resize=150%2C184\" alt=\"subwoofer a tromba\" width=\"150\" height=\"184\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Il sistemi di caricameto acustico visti finora possono essere definiti a radiazione diretta, cio\u00e8 il diaframma dell&#8217;altoparlante irradia direttamente nell&#8217;ambiente circostante. Nei sistemi a tromba invece, tra il diaframma e l&#8217;ambiente viene interposto un&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":575,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[3,4],"tags":[135,247,257,70,256],"class_list":["post-574","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car-audio","category-home-hi-fi","tag-box","tag-caricamento","tag-cassa","tag-subwoofer","tag-tromba"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"Il sistemi di caricameto acustico visti finora 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