{"id":9620,"date":"2025-09-02T10:07:02","date_gmt":"2025-09-02T08:07:02","guid":{"rendered":"https:\/\/owolff.com\/?p=9620"},"modified":"2025-09-02T10:08:34","modified_gmt":"2025-09-02T08:08:34","slug":"low-profile-40mm-driver","status":"publish","type":"post","link":"https:\/\/owolff.com\/ch\/white-papers\/low-profile-40mm-driver\/","title":{"rendered":"Low profile \u00d840mm headphone driver and the challenges in design"},"content":{"rendered":"<div id='full_slider_1'  class='avia-fullwidth-slider main_color avia-shadow   avia-builder-el-0  el_before_av_one_half  avia-builder-el-first   container_wrap sidebar_right'  ><div  class='avia-slideshow av-lbz3wc7i-cb3b230a800d904d4126b012a4dc3652 avia-slideshow-no scaling av_slideshow_full avia-slide-slider av-slideshow-ui av-control-default av-slideshow-manual av-loop-once av-loop-manual-endless av-default-height-applied   avia-slideshow-1' 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https:\/\/owolff.com\/wp-content\/uploads\/2025\/09\/news-header-48x9.jpg 48w, https:\/\/owolff.com\/wp-content\/uploads\/2025\/09\/news-header-600x117.jpg 600w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/div><\/li><\/ul><\/div><\/div><div id='after_full_slider_1'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-9620'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-34fjbq-4b0eb3e73a2c628affc43378bcef9aa4\">\n#top .flex_column.av-34fjbq-4b0eb3e73a2c628affc43378bcef9aa4{\nmargin-top:50px;\nmargin-bottom:0px;\n}\n.flex_column.av-34fjbq-4b0eb3e73a2c628affc43378bcef9aa4{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n.responsive #top #wrap_all .flex_column.av-34fjbq-4b0eb3e73a2c628affc43378bcef9aa4{\nmargin-top:50px;\nmargin-bottom:0px;\n}\n<\/style>\n<div  class='flex_column av-34fjbq-4b0eb3e73a2c628affc43378bcef9aa4 av_one_half  avia-builder-el-1  el_after_av_slideshow_full  el_before_av_one_half  avia-builder-el-first  first flex_column_div av-zero-column-padding'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lbz5eyvc-61361a55d6f13d1d7a7a8860178ea563\">\n#top .av_textblock_section.av-lbz5eyvc-61361a55d6f13d1d7a7a8860178ea563 .avia_textblock{\nfont-size:15px;\ncolor:#adadad;\n}\n<\/style>\n<section  class='av_textblock_section av-lbz5eyvc-61361a55d6f13d1d7a7a8860178ea563'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock av_inherit_color'  itemprop=\"text\" ><p><span class=\"av-post-metadata-content av-post-metadata-modified\"><span class=\"av-post-metadata-modified-date\">Sept. 02, 2025 \/<\/span><\/span><span class=\"av-post-metadata-content av-post-metadata-separator\"> White paper<\/span><\/p>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2pfino-a90cc2661982e15fa3f0bf68f2907ce7\">\n#top .av-special-heading.av-2pfino-a90cc2661982e15fa3f0bf68f2907ce7{\nmargin:0 0 20px 0;\npadding-bottom:0;\ncolor:#101010;\n}\nbody .av-special-heading.av-2pfino-a90cc2661982e15fa3f0bf68f2907ce7 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-2pfino-a90cc2661982e15fa3f0bf68f2907ce7 .special-heading-inner-border{\nborder-color:#101010;\n}\n.av-special-heading.av-2pfino-a90cc2661982e15fa3f0bf68f2907ce7 .av-subheading{\nfont-size:21px;\n}\n<\/style>\n<div  class='av-special-heading av-2pfino-a90cc2661982e15fa3f0bf68f2907ce7 av-special-heading-h1 custom-color-heading blockquote modern-quote  avia-builder-el-3  el_after_av_textblock  el_before_av_textblock'><h1 class='av-special-heading-tag'  itemprop=\"headline\"  >Low profile \u00d840mm headphone driver and the challenges in design<\/h1><div class='av_custom_color av-subheading av-subheading_below'><p>White paper<\/p>\n<\/div><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lc0kj8mr-00ef363c0707f6cf213f97054e43b482\">\n#top .av_textblock_section.av-lc0kj8mr-00ef363c0707f6cf213f97054e43b482 .avia_textblock{\ncolor:#101010;\n}\n<\/style>\n<section  class='av_textblock_section av-lc0kj8mr-00ef363c0707f6cf213f97054e43b482'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock av_inherit_color'  itemprop=\"text\" ><p data-start=\"63\" data-end=\"529\">Designing headphones always involves a balancing act between sleek, space-saving aesthetics and uncompromised acoustic performance.<\/p>\n<p data-start=\"63\" data-end=\"529\"><strong>This White Paper highlights the core challenges that arise when industrial design ambitions interfere with critical driver functions\u2014particularly acoustic venting and airflow management. It explains how improper design choices can lead to distortion, degraded sound quality, and misleading \u201ctrue\u201d height specifications.<\/strong><\/p>\n<hr \/>\n<p data-start=\"531\" data-end=\"782\">We also present a new low-profile 40mm driver solution that eliminates these trade-offs. Designed to fit seamlessly into even the most compact headphone concepts, it offers industrial designers the freedom to push aesthetics further, while guaranteeing the consistent, high-quality audio experience engineers demand.<\/p>\n<p>To read the full paper, you can download it <a href=\"https:\/\/owolff.com\/wp-content\/uploads\/2025\/09\/low-profile-o40mm-headphone-driver_vers2.pdf\" target=\"_blank\" rel=\"noopener\"><strong>here<\/strong><\/a>.<\/p>\n<\/div><\/section><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-34fjbq-2-c74e9f0dcfef7fefc7ba670c8da77e19\">\n#top .flex_column.av-34fjbq-2-c74e9f0dcfef7fefc7ba670c8da77e19{\nmargin-top:50px;\nmargin-bottom:0px;\n}\n.flex_column.av-34fjbq-2-c74e9f0dcfef7fefc7ba670c8da77e19{\nborder-radius:3px 3px 3px 3px;\npadding:30px 30px 30px 30px;\nbackground-color:#f9f9f9;\n}\n.responsive #top #wrap_all .flex_column.av-34fjbq-2-c74e9f0dcfef7fefc7ba670c8da77e19{\nmargin-top:50px;\nmargin-bottom:0px;\n}\n<\/style>\n<div  class='flex_column av-34fjbq-2-c74e9f0dcfef7fefc7ba670c8da77e19 av_one_half  avia-builder-el-5  el_after_av_one_half  avia-builder-el-last  flex_column_div'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lpb7kakc-86442537dd284101cd0f101ad96c6ced\">\n#top .av-special-heading.av-lpb7kakc-86442537dd284101cd0f101ad96c6ced{\nmargin:0 0 20px 0;\npadding-bottom:10px;\ncolor:#101010;\nfont-size:20px;\n}\nbody .av-special-heading.av-lpb7kakc-86442537dd284101cd0f101ad96c6ced .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n#top #wrap_all .av-special-heading.av-lpb7kakc-86442537dd284101cd0f101ad96c6ced .av-special-heading-tag{\nfont-size:20px;\n}\n.av-special-heading.av-lpb7kakc-86442537dd284101cd0f101ad96c6ced .special-heading-inner-border{\nborder-color:#101010;\n}\n.av-special-heading.av-lpb7kakc-86442537dd284101cd0f101ad96c6ced .av-subheading{\nfont-size:15px;\n}\n\n@media only screen and (min-width: 480px) and (max-width: 767px){ \n#top #wrap_all .av-special-heading.av-lpb7kakc-86442537dd284101cd0f101ad96c6ced .av-special-heading-tag{\nfont-size:0.8em;\n}\n}\n\n@media only screen and (max-width: 479px){ \n#top #wrap_all .av-special-heading.av-lpb7kakc-86442537dd284101cd0f101ad96c6ced .av-special-heading-tag{\nfont-size:0.8em;\n}\n}\n<\/style>\n<div  class='av-special-heading av-lpb7kakc-86442537dd284101cd0f101ad96c6ced av-special-heading-h2 custom-color-heading blockquote modern-quote modern-centered  avia-builder-el-6  el_before_av_button_big  avia-builder-el-no-sibling  av-inherit-size'><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >Head- and earphone design<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<div  class='avia-button-wrap avia-button-center  avia-builder-el-7  el_after_av_heading  el_before_av_hr  button-front-2'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lbz4w04l-69404c394d0aa86e3836a49506516ce5\">\n#top #wrap_all .avia-button.av-lbz4w04l-69404c394d0aa86e3836a49506516ce5{\ncolor:#bf4542;\ntransition:all 0.4s ease-in-out;\n}\n#top #wrap_all .avia-button.av-lbz4w04l-69404c394d0aa86e3836a49506516ce5:hover{\nbackground-color:#f9f9f9;\ncolor:white;\ntransition:all 0.4s ease-in-out;\n}\n#top #wrap_all .avia-button.av-lbz4w04l-69404c394d0aa86e3836a49506516ce5 .avia-svg-icon svg:first-child{\nfill:#bf4542;\nstroke:#bf4542;\n}\n#top #wrap_all .avia-button.av-lbz4w04l-69404c394d0aa86e3836a49506516ce5:hover .avia-svg-icon svg:first-child{\nfill:white;\nstroke:white;\n}\n<\/style>\n<a href='https:\/\/owolff.com\/ch\/application-support\/headphones-and-earphones\/' class='avia-color-light avia-button avia-button-fullwidth 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.av-special-heading.av-lvoxlcym-a5f8345a7b74686e94c6e734079d0c60 .av-special-heading-tag{\nfont-size:0.8em;\n}\n}\n<\/style>\n<div  class='av-special-heading av-lvoxlcym-a5f8345a7b74686e94c6e734079d0c60 av-special-heading-h2 custom-color-heading blockquote modern-quote modern-centered  avia-builder-el-9  el_after_av_hr  el_before_av_button_big  avia-builder-el-last  av-inherit-size'><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >Download Whitepaper<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<div  class='avia-button-wrap avia-button-center  avia-builder-el-10  el_after_av_heading  el_before_av_hr  button-front-2'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lvoxm60u-dc6437212b5c7aa908956551ba9eac0e\">\n#top #wrap_all .avia-button.av-lvoxm60u-dc6437212b5c7aa908956551ba9eac0e{\ncolor:#bf4542;\ntransition:all 0.4s ease-in-out;\n}\n#top #wrap_all 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