{"id":354693,"date":"2026-02-23T15:47:39","date_gmt":"2026-02-23T13:47:39","guid":{"rendered":"https:\/\/mediagear.ee\/product\/sennheiser-hd-400-pro-studio-headphones-699c5a7f6817a\/"},"modified":"2026-02-24T16:26:42","modified_gmt":"2026-02-24T14:26:42","slug":"sennheiser-hd-400-pro-studio-headphones","status":"publish","type":"product","link":"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/","title":{"rendered":"SENNHEISER HD 400 PRO studio headphones"},"content":{"rendered":"<p dir=\"auto\">The Sennheiser HD 400 PRO open-back studio headphones deliver neutral, precise reference sound for mixing and mastering. Lightweight with velour pads, 120\u03a9 dynamic drivers, angled transducers for wide soundstage and dual cables (straight + coiled) ensure comfort and accuracy during long sessions.<\/p>\n<p dir=\"auto\">The Sennheiser HD 400 PRO is a professional open-back studio reference headphone engineered for critical mixing, mastering and monitoring in home or professional studios. Its 120\u03a9 dynamic transducers, angled for optimal ear alignment, reproduce a wide, transparent soundstage with low distortion even at high SPLs (110 dB), ensuring your mix translates exactly as intended. The lightweight, open-ear design with soft velour earpads provides exceptional comfort over extended sessions, while the open-back architecture enhances spatial accuracy and natural ambience. Included are both a single-sided coiled cable for studio mobility and a straight cable for portable use, both terminating in a 3.5mm plug (with 6.3mm adapter).<\/p>\n<p dir=\"auto\"><strong>Key Features:<\/strong><\/p>\n<ul dir=\"auto\">\n<li>Neutral, accurate sound reproduction for professional mixing and mastering<\/li>\n<li>Open-back design with angled 120\u03a9 dynamic transducers for spacious, low-distortion soundstage<\/li>\n<li>Lightweight construction with velour earpads for all-day comfort<\/li>\n<li>Dual cables: single-sided coiled (for studio) and straight (for travel)<\/li>\n<li>High SPL handling (110 dB at 1 kHz \/ 1 V RMS) with minimal harmonic distortion<\/li>\n<li>3.5 mm connector with 6.3 mm adapter included<\/li>\n<li>Durable, professional-grade build for daily studio use<\/li>\n<\/ul>\n<hr class=\"break\">\n<ul>\n<li class=\"item_u6ujeLWy3W\" data-selenium=\"includesInTheBoxItem\"><span>Sennheiser HD 400 PRO Studio Reference Headphones<\/span><\/li>\n<li class=\"item_u6ujeLWy3W\" data-selenium=\"includesInTheBoxItem\"><span>Coiled Cable<\/span><\/li>\n<li class=\"item_u6ujeLWy3W\" data-selenium=\"includesInTheBoxItem\"><span>Straight Cable<\/span><\/li>\n<li class=\"item_u6ujeLWy3W\" data-selenium=\"includesInTheBoxItem\"><span>1\/4&#8243; Adapter<\/span><\/li>\n<\/ul>\n<hr class=\"break\">\n<ul dir=\"auto\">\n<li><strong>Model:<\/strong> HD 400 PRO<\/li>\n<li><strong>Type:<\/strong> Open-back, over-ear studio reference headphones<\/li>\n<li><strong>Transducer Type:<\/strong> Dynamic, 120 \u03a9 impedance<\/li>\n<li><strong>Wearing Style:<\/strong> Circumaural (over-ear)<\/li>\n<li><strong>Connection:<\/strong> Wired<\/li>\n<li><strong>Connectors:<\/strong> 3.5 mm stereo jack (with 6.3 mm screw-on adapter)<\/li>\n<li><strong>Cables Included:<\/strong>\n<ul dir=\"auto\">\n<li>1 x single-sided coiled cable (3 m)<\/li>\n<li>1 x straight cable (1.8 m)<\/li>\n<\/ul>\n<\/li>\n<li><strong>Max Sound Pressure Level:<\/strong> 110 dB (1 kHz \/ 1 V RMS)<\/li>\n<li><strong>Frequency Response:<\/strong> 6 \u2013 38,000 Hz (typical for precision monitoring)<\/li>\n<li><strong>Ear Pads:<\/strong> Soft velour, replaceable<\/li>\n<li><strong>Weight:<\/strong> Approx. 240 g (without cable)<\/li>\n<li><strong>Color:<\/strong> Black<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The Sennheiser HD 400 PRO open-back studio headphones deliver neutral, precise reference sound for mixing and mastering. Lightweight with velour pads, 120\u03a9 dynamic drivers, angled transducers for wide soundstage and dual cables (straight + coiled) ensure comfort and accuracy during long sessions. The Sennheiser HD 400 PRO is a professional open-back studio reference headphone engineered for critical mixing, mastering and monitoring in home or professional studios. Its 120\u03a9 dynamic&#8230;<\/p>\n","protected":false},"featured_media":354682,"template":"","meta":{"_acf_changed":false},"brand":[4486],"product_cat":[5244],"product_tag":[],"inventory":[],"class_list":{"0":"post-354693","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"brand-sennheiser-et","7":"product_cat-korvaklapid-kolarid","9":"first","10":"onbackorder","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>SENNHEISER HD 400 PRO studio headphones - MediaGear<\/title>\n<meta name=\"description\" content=\"The Sennheiser HD 400 PRO open-back studio headphones deliver neutral, precise reference sound for mixing and mastering. Lightweight with velour pa...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/\" \/>\n<meta property=\"og:locale\" content=\"et_EE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SENNHEISER HD 400 PRO studio headphones - MediaGear\" \/>\n<meta property=\"og:description\" content=\"The Sennheiser HD 400 PRO open-back studio headphones deliver neutral, precise reference sound for mixing and mastering. Lightweight with velour pa...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/\" \/>\n<meta property=\"og:site_name\" content=\"MediaGear\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Mediagear.ee\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-24T14:26:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mediagear.ee\/wp-content\/uploads\/2026\/02\/sennheiser-hd-400-pro-studio-headphones-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"666\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minut\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/\",\"url\":\"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/\",\"name\":\"SENNHEISER HD 400 PRO studio headphones - MediaGear\",\"isPartOf\":{\"@id\":\"https:\/\/mediagear.ee\/et\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/mediagear.ee\/wp-content\/uploads\/2026\/02\/sennheiser-hd-400-pro-studio-headphones-1.jpg\",\"datePublished\":\"2026-02-23T13:47:39+00:00\",\"dateModified\":\"2026-02-24T14:26:42+00:00\",\"description\":\"The Sennheiser HD 400 PRO open-back studio headphones deliver neutral, precise reference sound for mixing and mastering. Lightweight with velour pa...\",\"breadcrumb\":{\"@id\":\"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/#breadcrumb\"},\"inLanguage\":\"et\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"et\",\"@id\":\"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/#primaryimage\",\"url\":\"https:\/\/mediagear.ee\/wp-content\/uploads\/2026\/02\/sennheiser-hd-400-pro-studio-headphones-1.jpg\",\"contentUrl\":\"https:\/\/mediagear.ee\/wp-content\/uploads\/2026\/02\/sennheiser-hd-400-pro-studio-headphones-1.jpg\",\"width\":1000,\"height\":666},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Avaleht\",\"item\":\"https:\/\/mediagear.ee\/et\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Pro video &amp; audio tehnika pood\",\"item\":\"https:\/\/mediagear.ee\/et\/pood\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"AUDIO\",\"item\":\"https:\/\/mediagear.ee\/et\/tootekategooria\/audio-et\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"K\u00f5rvaklapid &amp; k\u00f5larid\",\"item\":\"https:\/\/mediagear.ee\/et\/tootekategooria\/audio-et\/korvaklapid-kolarid\/\"},{\"@type\":\"ListItem\",\"position\":5,\"name\":\"SENNHEISER HD 400 PRO studio headphones\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/mediagear.ee\/et\/#website\",\"url\":\"https:\/\/mediagear.ee\/et\/\",\"name\":\"MediaGear\",\"description\":\"Full-service solutions in AV equipment\",\"publisher\":{\"@id\":\"https:\/\/mediagear.ee\/et\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/mediagear.ee\/et\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"et\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/mediagear.ee\/et\/#organization\",\"name\":\"Mediagear\",\"url\":\"https:\/\/mediagear.ee\/et\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"et\",\"@id\":\"https:\/\/mediagear.ee\/et\/#\/schema\/logo\/image\/\",\"url\":\"http:\/\/mediagear.ee\/wp-content\/uploads\/2024\/05\/MediaGear-logo-transp.png\",\"contentUrl\":\"http:\/\/mediagear.ee\/wp-content\/uploads\/2024\/05\/MediaGear-logo-transp.png\",\"width\":600,\"height\":200,\"caption\":\"Mediagear\"},\"image\":{\"@id\":\"https:\/\/mediagear.ee\/et\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/Mediagear.ee\/\",\"https:\/\/www.instagram.com\/mediagear_ee\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"SENNHEISER HD 400 PRO studio headphones - MediaGear","description":"The Sennheiser HD 400 PRO open-back studio headphones deliver neutral, precise reference sound for mixing and mastering. Lightweight with velour pa...","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/","og_locale":"et_EE","og_type":"article","og_title":"SENNHEISER HD 400 PRO studio headphones - MediaGear","og_description":"The Sennheiser HD 400 PRO open-back studio headphones deliver neutral, precise reference sound for mixing and mastering. Lightweight with velour pa...","og_url":"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/","og_site_name":"MediaGear","article_publisher":"https:\/\/www.facebook.com\/Mediagear.ee\/","article_modified_time":"2026-02-24T14:26:42+00:00","og_image":[{"width":1000,"height":666,"url":"https:\/\/mediagear.ee\/wp-content\/uploads\/2026\/02\/sennheiser-hd-400-pro-studio-headphones-1.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minut"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/","url":"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/","name":"SENNHEISER HD 400 PRO studio headphones - MediaGear","isPartOf":{"@id":"https:\/\/mediagear.ee\/et\/#website"},"primaryImageOfPage":{"@id":"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/#primaryimage"},"image":{"@id":"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/#primaryimage"},"thumbnailUrl":"https:\/\/mediagear.ee\/wp-content\/uploads\/2026\/02\/sennheiser-hd-400-pro-studio-headphones-1.jpg","datePublished":"2026-02-23T13:47:39+00:00","dateModified":"2026-02-24T14:26:42+00:00","description":"The Sennheiser HD 400 PRO open-back studio headphones deliver neutral, precise reference sound for mixing and mastering. Lightweight with velour pa...","breadcrumb":{"@id":"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/#breadcrumb"},"inLanguage":"et","potentialAction":[{"@type":"ReadAction","target":["https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/"]}]},{"@type":"ImageObject","inLanguage":"et","@id":"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/#primaryimage","url":"https:\/\/mediagear.ee\/wp-content\/uploads\/2026\/02\/sennheiser-hd-400-pro-studio-headphones-1.jpg","contentUrl":"https:\/\/mediagear.ee\/wp-content\/uploads\/2026\/02\/sennheiser-hd-400-pro-studio-headphones-1.jpg","width":1000,"height":666},{"@type":"BreadcrumbList","@id":"https:\/\/mediagear.ee\/et\/toode\/sennheiser-hd-400-pro-studio-headphones\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Avaleht","item":"https:\/\/mediagear.ee\/et\/"},{"@type":"ListItem","position":2,"name":"Pro video &amp; audio tehnika pood","item":"https:\/\/mediagear.ee\/et\/pood\/"},{"@type":"ListItem","position":3,"name":"AUDIO","item":"https:\/\/mediagear.ee\/et\/tootekategooria\/audio-et\/"},{"@type":"ListItem","position":4,"name":"K\u00f5rvaklapid &amp; k\u00f5larid","item":"https:\/\/mediagear.ee\/et\/tootekategooria\/audio-et\/korvaklapid-kolarid\/"},{"@type":"ListItem","position":5,"name":"SENNHEISER HD 400 PRO studio headphones"}]},{"@type":"WebSite","@id":"https:\/\/mediagear.ee\/et\/#website","url":"https:\/\/mediagear.ee\/et\/","name":"MediaGear","description":"Full-service solutions in AV equipment","publisher":{"@id":"https:\/\/mediagear.ee\/et\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/mediagear.ee\/et\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"et"},{"@type":"Organization","@id":"https:\/\/mediagear.ee\/et\/#organization","name":"Mediagear","url":"https:\/\/mediagear.ee\/et\/","logo":{"@type":"ImageObject","inLanguage":"et","@id":"https:\/\/mediagear.ee\/et\/#\/schema\/logo\/image\/","url":"http:\/\/mediagear.ee\/wp-content\/uploads\/2024\/05\/MediaGear-logo-transp.png","contentUrl":"http:\/\/mediagear.ee\/wp-content\/uploads\/2024\/05\/MediaGear-logo-transp.png","width":600,"height":200,"caption":"Mediagear"},"image":{"@id":"https:\/\/mediagear.ee\/et\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/Mediagear.ee\/","https:\/\/www.instagram.com\/mediagear_ee\/"]}]}},"_links":{"self":[{"href":"https:\/\/mediagear.ee\/et\/wp-json\/wp\/v2\/product\/354693","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mediagear.ee\/et\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/mediagear.ee\/et\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mediagear.ee\/et\/wp-json\/wp\/v2\/media\/354682"}],"wp:attachment":[{"href":"https:\/\/mediagear.ee\/et\/wp-json\/wp\/v2\/media?parent=354693"}],"wp:term":[{"taxonomy":"brand","embeddable":true,"href":"https:\/\/mediagear.ee\/et\/wp-json\/wp\/v2\/brand?post=354693"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mediagear.ee\/et\/wp-json\/wp\/v2\/product_cat?post=354693"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mediagear.ee\/et\/wp-json\/wp\/v2\/product_tag?post=354693"},{"taxonomy":"inventory","embeddable":true,"href":"https:\/\/mediagear.ee\/et\/wp-json\/wp\/v2\/inventory?post=354693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}