{"id":1082,"date":"2011-11-12T15:00:47","date_gmt":"2011-11-12T15:00:47","guid":{"rendered":"http:\/\/www.audioexcite.com\/?p=1082"},"modified":"2011-11-13T18:47:29","modified_gmt":"2011-11-13T18:47:29","slug":"excellence-two-%e2%80%93-mini-monitor-construction-update1","status":"publish","type":"post","link":"https:\/\/www.audioexcite.com\/?p=1082","title":{"rendered":"Excellence Two \u2013 Mini Monitor Construction Update1!"},"content":{"rendered":"<p><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2011\/11\/Excellence-Two-cabinett-internal.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-1084\" title=\"Excellence Two - cabinett internal\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2011\/11\/Excellence-Two-cabinett-internal.jpg\" alt=\"\" width=\"156\" height=\"209\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2011\/11\/Excellence-Two-cabinett-internal.jpg 336w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2011\/11\/Excellence-Two-cabinett-internal-224x300.jpg 224w\" sizes=\"auto, (max-width: 156px) 100vw, 156px\" \/><\/a><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2011\/11\/Excellence-Two-cabinett-internal2.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-1086\" title=\"Excellence Two - cabinett internal2\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2011\/11\/Excellence-Two-cabinett-internal2.jpg\" alt=\"\" width=\"156\" height=\"208\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2011\/11\/Excellence-Two-cabinett-internal2.jpg 336w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2011\/11\/Excellence-Two-cabinett-internal2-224x300.jpg 224w\" sizes=\"auto, (max-width: 156px) 100vw, 156px\" \/><\/a>Since I\u2019m using the Parts Express 8liter (0.25ft3) curved enclosure <a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2011\/10\/302-703-dayton-audio-twc-025ch-specifications-459051.pdf\">Dayton 8 liters Curved Cabinet #302-701<\/a> for this design and it\u2019s a bit oversized for the used mid-woofer, I need to reduce the internal volume by approximately 2 liters. I used very dense foam pads which I glued to the upper rear side-walls to reduce the volume. 4mm bitumen pads are glued to the side-walls in the front part of the enclosure to reduce vibrations and to reduce the internal volume as well. I\u2019ve used a 29mm (1 1\/8\u201d) bass-reflex port tuned to 45Hz (see pictures).<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2011\/11\/W12-chamfer.jpg\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-1092\" title=\"W12 chamfer\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2011\/11\/W12-chamfer.jpg\" alt=\"\" width=\"146\" height=\"109\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2011\/11\/W12-chamfer.jpg 448w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2011\/11\/W12-chamfer-300x224.jpg 300w\" sizes=\"auto, (max-width: 146px) 100vw, 146px\" \/><\/a>Even though the W12 mid-woofer is well ventilated it\u2019s very important to chamfer the baffle in order to let the mid-woofer breathe properly. This is also partly the reason why I choose a relatively wide baffle (19cm or 7.5\u201d) for such a small driver unit. I have used less wide enclosures for similar sized driver units before and my conclusion is that many times you get reflections from the side-walls that affect the midrange performance, if the driver isn\u2019t allowed to breathe unrestricted. This is not always clearly visible in measurements, but is clearly noticeable in listening tests.<\/p>\n<p>The enclosure is lightly filled with sheep wool and I use SUPRA Ply 2.0 for internal wiring. <a href=\"http:\/\/www.jenving.se\/?p=ply\">SUPRA Cables<\/a><\/p>\n<p>I use SUPRA both for signal and loudspeaker cabling in all my designs and HiFi equipment and I think these cables have a great price\/performance value.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Since I\u2019m using the Parts Express 8liter (0.25ft3) curved enclosure Dayton 8 liters Curved Cabinet #302-701 for this design and it\u2019s a bit oversized for the used mid-woofer, I need to reduce the internal volume by approximately 2 liters. I used very dense foam pads which I glued to the upper rear side-walls to reduce [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-1082","post","type-post","status-publish","format-standard","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/posts\/1082","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1082"}],"version-history":[{"count":16,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/posts\/1082\/revisions"}],"predecessor-version":[{"id":1100,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/posts\/1082\/revisions\/1100"}],"wp:attachment":[{"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1082"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1082"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1082"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}