{"id":2607,"date":"2026-09-11T15:14:07","date_gmt":"2026-09-11T14:14:07","guid":{"rendered":"https:\/\/www.ik1bxn.it\/wp\/?p=2607"},"modified":"2026-09-11T16:37:54","modified_gmt":"2026-09-11T15:37:54","slug":"wooden-case-line-speaker","status":"publish","type":"post","link":"https:\/\/www.ik1bxn.it\/wp\/2026\/09\/11\/wooden-case-line-speaker\/","title":{"rendered":"Wooden case line speaker"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"576\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/In-position-576x1024.jpeg\" alt=\"\" class=\"wp-image-2608\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/In-position-576x1024.jpeg 576w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/In-position-169x300.jpeg 169w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/In-position-768x1365.jpeg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/In-position-864x1536.jpeg 864w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/In-position-1152x2048.jpeg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/In-position-scaled.jpeg 1440w\" sizes=\"auto, (max-width: 576px) 100vw, 576px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Da tempo volevo cimentarmi nella costruzione di una cassa di linea in legno Tempo fa ho trovato in un mercatino un&#8217;altoparlante da 4 pollici a poco prezzo ed ho deciso di provare a &#8220;progettare&#8221; e realizzare la mia cassa acustica di linea, praticamente un gioco spendendo poco &#8230; la tavola da 18 mm trovata dal solito brico in offerta a 6,50 euro ed essendo attrezzato per lavorare il legno ho iniziato a divertirmi<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>I had wanted to build a wooden case line speaker for a long time. Recently t an hamfest I found a NOS 4 inches speaker (defined as a woofer) for few bucks so I decided to start my project. In addition I found a wooden board 18 mm thick at bargain price so the cheap game could begin&#8230;so let&#8217;s try<\/strong><\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Non avendo alcuna esperienza in materia di progettazione di diffusori acustici , mi sono affidando ad Intenet ed mediando fra le mille possibilit\u00e0 trovate sono arrivato ad un dimensionamento che incontrasse le mie esigenze. Francamente non mi aspettavo risultati soddisfacenti&#8230;e invece<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>As I have no skill in acoustic design I surfed the Internet and merging the lot of solutions I met I found the sizing I need. Of course I didn&#8217;t expect any satisying result &#8230; but I was proven wrong<\/strong><\/em><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-1 wp-block-paragraph\" style=\"font-size:27px\"><strong>Costruzione \/ <em>Building<\/em><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Per la costruzione ho utilizzato una tavola lamellare spessa 18 mm e del compensato da 10 mm. Nelle foto che seguono vedrete come ho assemblato le parti (ovviamente \u00e8 solo una indicazione, nulla vieta di usare altre soluzioni)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>To build the case I used wooden board 18 mm thick and some plywood 10 mm thick (scraps from previous projects). Here below you&#8217;ll find how I assembled the case (of course you can do it in the way you prefer)<\/strong><\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-1-768x1024.jpg\" alt=\"\" class=\"wp-image-2610\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-1-768x1024.jpg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-1-225x300.jpg 225w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-1-1152x1536.jpg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-1-1536x2048.jpg 1536w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-1-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-2-768x1024.jpg\" alt=\"\" class=\"wp-image-2611\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-2-768x1024.jpg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-2-225x300.jpg 225w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-2-1152x1536.jpg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-2-1536x2048.jpg 1536w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-2-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-3-768x1024.jpg\" alt=\"\" class=\"wp-image-2612\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-3-768x1024.jpg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-3-225x300.jpg 225w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-3-1152x1536.jpg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-3-1536x2048.jpg 1536w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-3-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-4-768x1024.jpg\" alt=\"\" class=\"wp-image-2613\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-4-768x1024.jpg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-4-225x300.jpg 225w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-4-1152x1536.jpg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-4-1536x2048.jpg 1536w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-4-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-5-768x1024.jpg\" alt=\"\" class=\"wp-image-2614\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-5-768x1024.jpg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-5-225x300.jpg 225w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-5-1152x1536.jpg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-5-1536x2048.jpg 1536w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-5-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-6-768x1024.jpg\" alt=\"\" class=\"wp-image-2615\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-6-768x1024.jpg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-6-225x300.jpg 225w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-6-1152x1536.jpg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-6-1536x2048.jpg 1536w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-6-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-7-768x1024.jpg\" alt=\"\" class=\"wp-image-2616\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-7-768x1024.jpg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-7-225x300.jpg 225w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-7-1152x1536.jpg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-7-1536x2048.jpg 1536w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-7-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-8-768x1024.jpg\" alt=\"\" class=\"wp-image-2617\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-8-768x1024.jpg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-8-225x300.jpg 225w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-8-1152x1536.jpg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-8-1536x2048.jpg 1536w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Building-8-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Sul frontale ho previsto un deviatore ed un jack da 6,3 mm per la cuffia. Mediante il deviatore \u00e8 possibile inviare l&#8217;audio all&#8217;altoparlante o alla cuffia (purtroppo non disponevo di un jack stereo da 6,3 mm con la commutazione da spinotto inserito). Ho aggiunto un circuito (traendo spunto da un prodotto commerciale) che garantisce un carico sull&#8217;uscita audio della radio qualora il jack cuffia non sia inserito e si cummuta su cuffia. Sono presenti anche resistenze su tip e ring del jack che hanno lo scopo di proteggere l&#8217;audio qualora si inserisca un jack mono (che metterebbe a massa il ring del jack. Questo \u00e8 lo schema del circuito<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>On the case front I provided a 2 position switch and a 1\/4 female jack for headphone. The 2 position switch lets you to send audio to speaker or to headphone (unfortunately I hadn&#8217;t a stereo jack with switching contacts operated by the jack plug).          I added also a little circuit that grants rig output charge in case you switch to headphone but no headphone is in. Resistors protect from grounding ring in case you insert a mono jack plug. Here is the diagram<\/strong><\/em><\/p>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Homemade-line-speaker.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Incorporamento di Homemade line speaker.\"><\/object><a id=\"wp-block-file--media-79685625-935b-4a68-8677-7434624dc73c\" href=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Homemade-line-speaker.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Homemade line speaker<\/a><a href=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Homemade-line-speaker.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-79685625-935b-4a68-8677-7434624dc73c\">Download<\/a><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Ecco come si presenta la mia realizzazione completa del cablaggio \/ <em><strong>Here is how it looks my case with the cabling<\/strong><\/em> <em><strong>installed<\/strong><\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-1-768x1024.jpg\" alt=\"\" class=\"wp-image-2621\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-1-768x1024.jpg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-1-225x300.jpg 225w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-1-1152x1536.jpg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-1-1536x2048.jpg 1536w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-1-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-2-768x1024.jpg\" alt=\"\" class=\"wp-image-2622\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-2-768x1024.jpg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-2-225x300.jpg 225w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-2-1152x1536.jpg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-2-1536x2048.jpg 1536w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-2-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-3-768x1024.jpg\" alt=\"\" class=\"wp-image-2623\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-3-768x1024.jpg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-3-225x300.jpg 225w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-3-1152x1536.jpg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-3-1536x2048.jpg 1536w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cabling-3-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ed eccola completata mancante del pannello frontale in stoffa e prima dell&#8217;ultima carteggiata e della successiva lucidatura a cera \/ <em><strong>And finally line speaker is completed, it misses the front fabric cover and the latest sanding and wax finishing<\/strong><\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Finished-1-768x1024.jpg\" alt=\"\" class=\"wp-image-2624\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Finished-1-768x1024.jpg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Finished-1-225x300.jpg 225w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Finished-1-1152x1536.jpg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Finished-1-1536x2048.jpg 1536w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Finished-1-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Finished-2-768x1024.jpg\" alt=\"\" class=\"wp-image-2625\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Finished-2-768x1024.jpg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Finished-2-225x300.jpg 225w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Finished-2-1152x1536.jpg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Finished-2-1536x2048.jpg 1536w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Finished-2-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Questi sono i disegni con indicate le dimensioni che ho usato io, nulla vieta di adattarle alle proprie esigenze \/ <em><strong>Here are drawings and dimensions I used to build my case. They&#8217;re for reference and not mandatory, you can adapt them to match your needs<\/strong><\/em><\/p>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cassa-di-linea-fronte-2.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Incorporamento di Cassa di linea fronte 2.\"><\/object><a id=\"wp-block-file--media-2e3eb3e8-b355-4a9b-86dd-baa82a3191e4\" href=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cassa-di-linea-fronte-2.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Cassa di linea fronte 2<\/a><a href=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cassa-di-linea-fronte-2.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-2e3eb3e8-b355-4a9b-86dd-baa82a3191e4\">Download<\/a><\/div>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cassa-di-linea-pianta-1.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Incorporamento di Cassa di linea pianta 1.\"><\/object><a id=\"wp-block-file--media-cc5ca91c-51c7-4f87-9828-eec653fe6747\" href=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cassa-di-linea-pianta-1.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Cassa di linea pianta 1<\/a><a href=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Cassa-di-linea-pianta-1.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-cc5ca91c-51c7-4f87-9828-eec653fe6747\">Download<\/a><\/div>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-2 wp-block-paragraph\" style=\"font-size:27px\"><strong>Messa a punto \/ <em>Tuning<\/em><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Una volta costruita \u00e8 necessaria una messa a punto finalizzata ad ottimizzare la risposta in frequenza. Io facendo solo CW mi sono focalizzato sul segmento 500-1000 Hz. Per questa operazione \u00e8 stato fondamentale l&#8217;utilizzo di questo programma gratuito e multipiattaforma. In pratica ho posizionato il mio MacBook a 50 cm dalla cassa (chiusa col suo coperchio) in modo che attraverso il suo microfono ascolti i suoni in uscita dalla cassa ed ho collegato l&#8217;scita cuffia del MacBook all&#8217;altoparlante. Chiuso poi in religioso silenzio per non alterare la misura ho proceduto. Qui il programma che ho usato<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>Once built you need to optimize the frequency responce. As I operate only CW I payed attention to 500-1000 Hz segment. To tune my line speaker I used a free software that&#8217;s available for Win-Mac-Linux. To do measures I placed my MacBook at about 50 cm from the speaker (of course with the bottom cover mounted) so MacBook internal microphone listen to my line speaker sound. MacBook audio output was used to drive the line speaker. Then with no noise in the room (wife for example HI) you can start with measures<\/strong><\/em>. <em><strong>Here below the software I used:<\/strong><\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.roomeqwizard.com\">https:\/\/www.roomeqwizard.com<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La prima misura non \u00e8 stata soddisfacente perch\u00e8 c&#8217;era un &#8220;buco&#8221; intorno ai 700 Hz. Non disponendo delle necessarie conoscenze tecniche ho dovuto procedere per tentativi aggiungendo pezzi material fono assorbente. Ogni volta toglievo il coperchio inferiore, posizionavo il fonoassorbente, richiudevo la cassa ripetevo la misura (lasciando il MacBook fermo e mettendo la cassa sempre nella stessa posizione)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>First measure result was depressing ! There was an &#8220;hole&#8221; at around 700 Hz. As I have no skill I tried some temptatives by adding some sound-absorbing blocks inside the case. For each temptative I uncovered the case, placed block in a certain position, close the case and perform measurement. In these steps the MacBook and the line speaker were left always in the same position (otherwise measures are different)<\/strong><\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Al primo tentativo qualcosa \u00e8 migliorato ma non ancora soddisfacente ed a poco \u00e8 servito spostare il fonoassorbente lungo il canale<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>At first temptative something was improved, but still not statisfying me. Moving the block along the air duct didn&#8217;t pay<\/strong><\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"576\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Tuning-temp-1_1-576x1024.jpeg\" alt=\"\" class=\"wp-image-2630\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Tuning-temp-1_1-576x1024.jpeg 576w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Tuning-temp-1_1-169x300.jpeg 169w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Tuning-temp-1_1-768x1365.jpeg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Tuning-temp-1_1-864x1536.jpeg 864w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Tuning-temp-1_1-1152x2048.jpeg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Tuning-temp-1_1-scaled.jpeg 1440w\" sizes=\"auto, (max-width: 576px) 100vw, 576px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Successivamente ho trovato la soluzione che portava la risposta in frequenza come volevo io usando un tampone di ovatta e spostandolo lungo il canale fino a trovare la risposta desiderata<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>After several temptatives I used a wadding block and moving it along the air duct I found the frequency response I was looking for.<\/strong><\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Tuning-temp-2_2-768x1024.jpeg\" alt=\"\" class=\"wp-image-2631\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Tuning-temp-2_2-768x1024.jpeg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Tuning-temp-2_2-225x300.jpeg 225w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Tuning-temp-2_2-1152x1536.jpeg 1152w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Tuning-temp-2_2-1536x2048.jpeg 1536w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Tuning-temp-2_2-scaled.jpeg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Questo \u00e8 il risulato della misura \/ <em><strong>Here is the result<\/strong><\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"450\" src=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Misure-Aug-16.jpg-1024x450.jpeg\" alt=\"\" class=\"wp-image-2632\" srcset=\"https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Misure-Aug-16.jpg-1024x450.jpeg 1024w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Misure-Aug-16.jpg-300x132.jpeg 300w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Misure-Aug-16.jpg-768x337.jpeg 768w, https:\/\/www.ik1bxn.it\/wp\/wp-content\/uploads\/2026\/09\/Misure-Aug-16.jpg.jpeg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C&#8217;\u00e8 un &#8220;buco&#8221; a 430 Hz ma non mi crea problemi e fino a 2,5 KHz l&#8217;andamento per me \u00e8 pi\u00f9 che accettabile \/ <em><strong>There&#8217;s still an &#8220;hole&#8221; at about 430 Hz but it doesn&#8217;t matter for me and response is good until about 2,5 KHz, more than acceptable for me<\/strong><\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ora \u00e8 in uso corrente ed \u00e8la cassa che uso per l&#8217;uscita Main del mio 7610 \/ <em><strong>Now it&#8217;s my 7610 main receiver companion<\/strong><\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2026.. that\u2019s all folks ! Have fun<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>TU 73 de Giorgio IK1BXN&nbsp;<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">mail to: ik1bxn@ik1bxn.it<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Da tempo volevo cimentarmi nella costruzione di una cassa di linea in legno Tempo fa ho trovato in un mercatino un&#8217;altoparlante da 4 pollici a poco prezzo ed ho deciso di provare a &#8220;progettare&#8221; e realizzare la mia cassa acustica di linea, praticamente un gioco spendendo poco &#8230; la tavola da 18 mm trovata dal [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2607","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"views":123,"_links":{"self":[{"href":"https:\/\/www.ik1bxn.it\/wp\/wp-json\/wp\/v2\/posts\/2607","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ik1bxn.it\/wp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ik1bxn.it\/wp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ik1bxn.it\/wp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ik1bxn.it\/wp\/wp-json\/wp\/v2\/comments?post=2607"}],"version-history":[{"count":34,"href":"https:\/\/www.ik1bxn.it\/wp\/wp-json\/wp\/v2\/posts\/2607\/revisions"}],"predecessor-version":[{"id":2662,"href":"https:\/\/www.ik1bxn.it\/wp\/wp-json\/wp\/v2\/posts\/2607\/revisions\/2662"}],"wp:attachment":[{"href":"https:\/\/www.ik1bxn.it\/wp\/wp-json\/wp\/v2\/media?parent=2607"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ik1bxn.it\/wp\/wp-json\/wp\/v2\/categories?post=2607"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ik1bxn.it\/wp\/wp-json\/wp\/v2\/tags?post=2607"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}