{"id":7046,"date":"2018-11-17T15:57:48","date_gmt":"2018-11-17T15:57:48","guid":{"rendered":"http:\/\/www.audioexcite.com\/?p=7046"},"modified":"2018-11-17T17:10:55","modified_gmt":"2018-11-17T17:10:55","slug":"driver-measurement-methods","status":"publish","type":"post","link":"https:\/\/www.audioexcite.com\/?p=7046","title":{"rendered":"Driver Measurement Methods!"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p>Hi everyone,<\/p>\n<p>From now on when I publish loudspeaker driver measurements, I will present it slightly different than before!<\/p>\n<p>First of all I will visually present the frequency measurements and impedance differently. In the past I\u2019ve used screen shots from the Holm Impulse and DATSv2 software, but in the future I will use LspCAD 6 Pro to visually present the frequency graphs. In that way I can e.g. show all measurements between 0 and 60 degrees in one graph. Below is an example how it will look like.<\/p>\n<p><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2019\/11\/Driver-Freq-0-60deg.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7049\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2019\/11\/Driver-Freq-0-60deg.jpg\" alt=\"\" width=\"360\" height=\"271\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2019\/11\/Driver-Freq-0-60deg.jpg 1232w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2019\/11\/Driver-Freq-0-60deg-300x226.jpg 300w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2019\/11\/Driver-Freq-0-60deg-768x579.jpg 768w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2019\/11\/Driver-Freq-0-60deg-1024x772.jpg 1024w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\" \/><\/a><a href=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2019\/11\/Driver-Imp-1L-vs-2R-known-mass.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-7050\" src=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2019\/11\/Driver-Imp-1L-vs-2R-known-mass.jpg\" alt=\"\" width=\"360\" height=\"271\" srcset=\"https:\/\/www.audioexcite.com\/wp-content\/uploads\/2019\/11\/Driver-Imp-1L-vs-2R-known-mass.jpg 1232w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2019\/11\/Driver-Imp-1L-vs-2R-known-mass-300x226.jpg 300w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2019\/11\/Driver-Imp-1L-vs-2R-known-mass-768x579.jpg 768w, https:\/\/www.audioexcite.com\/wp-content\/uploads\/2019\/11\/Driver-Imp-1L-vs-2R-known-mass-1024x772.jpg 1024w\" sizes=\"auto, (max-width: 360px) 100vw, 360px\" \/><\/a><\/p>\n<p>(click on picture to zoom)<\/p>\n<p>Secondly I will present and measure the Thiele Small measurements slightly different for all mid-woofers and woofers. All drivers will be burnt in for 3 hours at their resonance frequency and slightly below the x-max excursion limit of the driver. After the driver has cooled off, it\u2019s measured in two ways.<\/p>\n<p>First the driver will be measured using the \u201cadded\u201d mass method in a horizontal position. Secondly the driver is measured using the \u201cknown\u201d mass method in a vertical position. In this case the \u201cknown\u201d mass is the Manufacturer\u2019s specified Mms of the driver unit.<\/p>\n<p>The driver units are always measured in pairs or more and the individual driver samples measurements will be presented as well as the average of the two drivers.<\/p>\n<p>Regards<\/p>\n<p>\/G\u00f6ran<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Hi everyone, From now on when I publish loudspeaker driver measurements, I will present it slightly different than before! First of all I will visually present the frequency measurements and impedance differently. In the past I\u2019ve used screen shots from the Holm Impulse and DATSv2 software, but in the future I will use LspCAD [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,3],"tags":[],"class_list":["post-7046","post","type-post","status-publish","format-standard","hentry","category-blog","category-news"],"_links":{"self":[{"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/posts\/7046","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=7046"}],"version-history":[{"count":7,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/posts\/7046\/revisions"}],"predecessor-version":[{"id":7055,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=\/wp\/v2\/posts\/7046\/revisions\/7055"}],"wp:attachment":[{"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7046"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.audioexcite.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}