{"id":602,"date":"2026-09-25T09:26:00","date_gmt":"2026-09-25T09:26:00","guid":{"rendered":"https:\/\/soundslekker.com\/?post_type=product&#038;p=602"},"modified":"2026-10-07T19:35:09","modified_gmt":"2026-10-07T19:35:09","slug":"grundig-gdm-121-omnidirectional-dynamic-microphone","status":"publish","type":"product","link":"https:\/\/soundslekker.com\/?product=grundig-gdm-121-omnidirectional-dynamic-microphone","title":{"rendered":"Grundig GDM-121 Omnidirectional Dynamic Microphone"},"content":{"rendered":"<p>The Grundig GDM121! A beautiful, rebranded Sennheiser MD21! Sennheiser has been producing these consistently since 1953. They\u2019ve changed parts over the years, these 50\u2019s\/early 60\u2019s models are considered best. This omni dynamic mic is a fantastic, open sounding utility mic. Great for all kinds of sources.<\/p>\n<p>These were made in tons of colorways and different cosmetic set ups, but this has got to be the most elegant of all of them. STUNNING cosmetic condition, this mic was really well cared for. When I opened it to change to low impedence, it clearly had never been opened.<\/p>\n<p>Converted to balanced output with XLR output. Internal transformer bypassed. Cleaned internally.<\/p>\n<p>Includes very cool original table stand. The mic itself has typical 3\/8\u201d euro thread. The second Grundig GDM 121 in the last picture is not included, but is also available.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Still in original box! One of the most famous Omni-directional dynamics of all time, the Grundig GDM-121 is a beautiful re-branded Sennheiser MD21.<\/p>\n<p>Serviced with internal cleaning, balanced output conversion and a new XLR jack.<\/p>\n","protected":false},"featured_media":596,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[61,57],"product_cat":[47],"product_tag":[66,52],"class_list":["post-602","product","type-product","status-publish","has-post-thumbnail","product_brand-grundig","product_brand-sennheiser","product_cat-dynamic","product_tag-1950s","product_tag-1960s","first","outofstock","taxable","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Grundig GDM-121 Omnidirectional Dynamic Microphone - Sounds Lekker<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/soundslekker.com\/?product=grundig-gdm-121-omnidirectional-dynamic-microphone\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Grundig GDM-121 Omnidirectional Dynamic Microphone - Sounds Lekker\" \/>\n<meta property=\"og:description\" content=\"Still in original box! One of the most famous Omni-directional dynamics of all time, the Grundig GDM-121 is a beautiful re-branded Sennheiser MD21.  Serviced with internal cleaning, balanced output conversion and a new XLR jack.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/soundslekker.com\/?product=grundig-gdm-121-omnidirectional-dynamic-microphone\" \/>\n<meta property=\"og:site_name\" content=\"Sounds Lekker\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-07T19:35:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/soundslekker.com\/wp-content\/uploads\/2026\/09\/Library-7-of-9-scaled.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"2560\" \/>\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 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/soundslekker.com\\\/?product=grundig-gdm-121-omnidirectional-dynamic-microphone\",\"url\":\"https:\\\/\\\/soundslekker.com\\\/?product=grundig-gdm-121-omnidirectional-dynamic-microphone\",\"name\":\"Grundig GDM-121 Omnidirectional Dynamic Microphone - Sounds Lekker\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/soundslekker.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/soundslekker.com\\\/?product=grundig-gdm-121-omnidirectional-dynamic-microphone#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/soundslekker.com\\\/?product=grundig-gdm-121-omnidirectional-dynamic-microphone#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/soundslekker.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Library-7-of-9-scaled.jpeg\",\"datePublished\":\"2026-09-25T09:26:00+00:00\",\"dateModified\":\"2026-10-07T19:35:09+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/soundslekker.com\\\/?product=grundig-gdm-121-omnidirectional-dynamic-microphone#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/soundslekker.com\\\/?product=grundig-gdm-121-omnidirectional-dynamic-microphone\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/soundslekker.com\\\/?product=grundig-gdm-121-omnidirectional-dynamic-microphone#primaryimage\",\"url\":\"https:\\\/\\\/soundslekker.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Library-7-of-9-scaled.jpeg\",\"contentUrl\":\"https:\\\/\\\/soundslekker.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/Library-7-of-9-scaled.jpeg\",\"width\":1920,\"height\":2560},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/soundslekker.com\\\/?product=grundig-gdm-121-omnidirectional-dynamic-microphone#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/soundslekker.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/soundslekker.com\\\/?page_id=5\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Grundig GDM-121 Omnidirectional Dynamic Microphone\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/soundslekker.com\\\/#website\",\"url\":\"https:\\\/\\\/soundslekker.com\\\/\",\"name\":\"Sounds Lekker\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/soundslekker.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Grundig GDM-121 Omnidirectional Dynamic Microphone - Sounds Lekker","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:\/\/soundslekker.com\/?product=grundig-gdm-121-omnidirectional-dynamic-microphone","og_locale":"en_US","og_type":"article","og_title":"Grundig GDM-121 Omnidirectional Dynamic Microphone - Sounds Lekker","og_description":"Still in original box! 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