{"id":462389,"date":"2026-07-14T20:53:53","date_gmt":"2026-07-14T18:53:53","guid":{"rendered":"https:\/\/freakuence.nl\/product\/avantgarde-duo\/"},"modified":"2026-07-15T15:09:38","modified_gmt":"2026-07-15T13:09:38","slug":"avantgarde-duo","status":"publish","type":"product","link":"https:\/\/freakuence.nl\/en\/product\/avantgarde-duo\/","title":{"rendered":"Avantgarde Duo"},"content":{"rendered":"<div class=\"product-specifications-list\">\n<div class=\"specification-item row-header\"><span class=\"spec-content\"><strong>Description Freakuence!<\/strong><\/span><\/div>\n<div class=\"specification-item row-even\"><span class=\"spec-content\">Beautiful or unsightly? They\u2019re fantastic! The Avantgarde Duo with its large, spherical horns. These speakers deliver a unique live experience. A very wide frequency range with wonderful dynamics. The combination of the horns and the active subwoofer creates a massive soundstage.     <\/span><\/div>\n<div class=\"specification-item row-header\"><span class=\"spec-content\"><strong>Avantgarde Duo Specifications<\/strong><\/span><\/div>\n<div class=\"specification-item row-even\"><span class=\"spec-content\">Satellite frequency range: 170\u201328,000 Hz Subwoofer frequency range: 18\u2013350 Hz Power handling: 100 watts Sensitivity (1 watt\/1 m): &gt; 107 dB Crossover frequencies: 170\/3,500 Hz Nominal impedance: 18 ohms Recommended amplifier power: &gt; 10 watts Recommended room size:  &gt;  20 m\u00b2 Coplanar driver alignment: Yes OmegaDrive: Yes AirGate: Yes NatureCap with PolarizationPlus circuit: Yes Horn type: Spherical horn Horn opening angle: 180 degrees Horn diameter (midrange): 670 mm Horn diameter (treble): 200 mm Midrange driver diameter: 170 mm \/ 7 inches Tweeter diameter: 25 mm \/ 1 inch Driver size: 300 mm \/ 12 inches Number of drivers: 1 x XB12 Voice coil diameter: 153 mm Flux density: 1.15 Tesla \/ 480 mm Pole piece: Low-carbon steel Diaphragm material: Paper\/carbon fiber composite Output power (RMS): 1 x 500 Watt Digital crossover: DSP Equalizer: 8-band Digital room correction: Yes Inputs: 1 x SPKR + 1 x XLR High-Performance Multi-Contact connector: Yes Semi-active configuration: Yes Fully active configuration with ITRON amplifier: Yes ITRON voltage\/current conversion technology: Patented Fully balanced circuitry: Yes Single-stage circuitry: Yes Without negative feedback: Yes Power: 2 x 100 watts Dimensions (width): 670 mm Dimensions (depth): 652 mm Dimensions (height, +\/- 10 mm): 1,552 mm Weight: 94.0 kg<\/span><\/div>\n<div class=\"specification-item row-header\"><span class=\"spec-content\"><strong>Background information<\/strong><\/span><\/div>\n<div class=\"specification-item row-even\"><span class=\"spec-content\">The Avantgarde Duo speakers are designed with a strong focus on acoustic precision and sound purity. The German brand Avantgarde Acoustic follows a philosophy that utilizes horn systems for efficient sound reproduction. The enclosure is made from carefully selected materials to minimize resonance. Engineers such as Matthias Ruff play a crucial role in the design. Internal wiring and components are hand-selected and manufactured in Germany to ensure the highest quality.    <\/span><\/div>\n<div class=\"specification-item row-header\"><span class=\"spec-content\"><strong>Brand history<\/strong><\/span><\/div>\n<div class=\"specification-item row-even\"><span class=\"spec-content\">The Avantgarde brand was founded by Matthias Ruff and Armin Krauss in the 1990s. The company focuses on the technical refinement and development of products with a precise approach. Avantgarde&#8217;s first product was introduced in 1991. In the following years, the brand worked to diversify and improve its offerings, leading to the introduction of several product lines. Avantgarde&#8217;s designs combine mechanical and technical expertise with an emphasis on detail, with aesthetic simplicity at the forefront. Since its inception, Avantgarde has consistently worked to optimize product features, employing proprietary testing processes and manufacturing principles. Over the years, the brand has presented various product innovations that reflect the core values and philosophies of its founders. Thanks to continuous research and development, Avantgarde has continued to invest in technology and craftsmanship.       <\/span><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Description Freakuence! Beautiful or unsightly? They\u2019re fantastic! The Avantgarde Duo with its large, spherical horns. These speakers deliver a unique live experience. A very wide frequency range with wonderful dynamics. The combination of the horns and the active subwoofer creates a massive soundstage. Avantgarde Duo Specifications Satellite frequency range: 170\u201328,000 Hz Subwoofer frequency range: 18\u2013350 [&hellip;]<\/p>\n","protected":false},"featured_media":462872,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"product_brand":[],"product_cat":[986,985],"product_tag":[487],"class_list":{"0":"post-462389","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-column-speakers","7":"product_cat-speakers","8":"product_tag-used-en","9":"pa_kleur-rood","10":"pa_merken-avantgarde","12":"first","13":"instock","14":"sold-individually","15":"purchasable","16":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Avantgarde Duo | Freakuence!<\/title>\n<meta name=\"description\" content=\"Avantgarde Duo GT: the ultimate high-efficiency speaker. \u2713 New &amp; Used Hi-Fi \u2713 Customer Rating: 4.9 out of 5 \u2713 Trade-in \u2713 Listening Session\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/freakuence.nl\/en\/product\/avantgarde-duo\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Avantgarde Duo | Freakuence!\" \/>\n<meta property=\"og:description\" content=\"Avantgarde Duo GT: the ultimate high-efficiency speaker. \u2713 New &amp; Used Hi-Fi \u2713 Customer Rating: 4.9 out of 5 \u2713 Trade-in \u2713 Listening Session\" \/>\n<meta property=\"og:url\" content=\"https:\/\/freakuence.nl\/en\/product\/avantgarde-duo\/\" \/>\n<meta property=\"og:site_name\" content=\"Freakuence!\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-15T13:09:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/freakuence.nl\/wp-content\/uploads\/2026\/07\/17837770369862-20210-IMG8723-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"1800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/product\\\/avantgarde-duo\\\/\",\"url\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/product\\\/avantgarde-duo\\\/\",\"name\":\"Avantgarde Duo | Freakuence!\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/product\\\/avantgarde-duo\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/product\\\/avantgarde-duo\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/freakuence.nl\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/17837770369862-20210-IMG8723-1-scaled.jpg\",\"datePublished\":\"2026-07-14T18:53:53+00:00\",\"dateModified\":\"2026-07-15T13:09:38+00:00\",\"description\":\"Avantgarde Duo GT: the ultimate high-efficiency speaker. \u2713 New & Used Hi-Fi \u2713 Customer Rating: 4.9 out of 5 \u2713 Trade-in \u2713 Listening Session\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/product\\\/avantgarde-duo\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/freakuence.nl\\\/en\\\/product\\\/avantgarde-duo\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/product\\\/avantgarde-duo\\\/#primaryimage\",\"url\":\"https:\\\/\\\/freakuence.nl\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/17837770369862-20210-IMG8723-1-scaled.jpg\",\"contentUrl\":\"https:\\\/\\\/freakuence.nl\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/17837770369862-20210-IMG8723-1-scaled.jpg\",\"width\":1200,\"height\":1800},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/product\\\/avantgarde-duo\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Products\",\"item\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/products\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Avantgarde Duo\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/\",\"name\":\"Freakuence!\",\"description\":\"Freakuence!\",\"publisher\":{\"@id\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/#organization\"},\"alternateName\":\"Freakuence\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/#organization\",\"name\":\"Freakuence!\",\"url\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/freakuence.nl\\\/wp-content\\\/uploads\\\/2022\\\/05\\\/Brown_3_RGB_Freakuence-1.png\",\"contentUrl\":\"https:\\\/\\\/freakuence.nl\\\/wp-content\\\/uploads\\\/2022\\\/05\\\/Brown_3_RGB_Freakuence-1.png\",\"width\":2560,\"height\":684,\"caption\":\"Freakuence!\"},\"image\":{\"@id\":\"https:\\\/\\\/freakuence.nl\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.instagram.com\\\/freakuence_notorious_audio\\\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Avantgarde Duo | Freakuence!","description":"Avantgarde Duo GT: the ultimate high-efficiency speaker. \u2713 New & Used Hi-Fi \u2713 Customer Rating: 4.9 out of 5 \u2713 Trade-in \u2713 Listening Session","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:\/\/freakuence.nl\/en\/product\/avantgarde-duo\/","og_locale":"en_US","og_type":"article","og_title":"Avantgarde Duo | Freakuence!","og_description":"Avantgarde Duo GT: the ultimate high-efficiency speaker. \u2713 New & Used Hi-Fi \u2713 Customer Rating: 4.9 out of 5 \u2713 Trade-in \u2713 Listening Session","og_url":"https:\/\/freakuence.nl\/en\/product\/avantgarde-duo\/","og_site_name":"Freakuence!","article_modified_time":"2026-07-15T13:09:38+00:00","og_image":[{"width":1200,"height":1800,"url":"https:\/\/freakuence.nl\/wp-content\/uploads\/2026\/07\/17837770369862-20210-IMG8723-scaled.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/freakuence.nl\/en\/product\/avantgarde-duo\/","url":"https:\/\/freakuence.nl\/en\/product\/avantgarde-duo\/","name":"Avantgarde Duo | Freakuence!","isPartOf":{"@id":"https:\/\/freakuence.nl\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/freakuence.nl\/en\/product\/avantgarde-duo\/#primaryimage"},"image":{"@id":"https:\/\/freakuence.nl\/en\/product\/avantgarde-duo\/#primaryimage"},"thumbnailUrl":"https:\/\/freakuence.nl\/wp-content\/uploads\/2026\/07\/17837770369862-20210-IMG8723-1-scaled.jpg","datePublished":"2026-07-14T18:53:53+00:00","dateModified":"2026-07-15T13:09:38+00:00","description":"Avantgarde Duo GT: the ultimate high-efficiency speaker. \u2713 New & Used Hi-Fi \u2713 Customer Rating: 4.9 out of 5 \u2713 Trade-in \u2713 Listening Session","breadcrumb":{"@id":"https:\/\/freakuence.nl\/en\/product\/avantgarde-duo\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/freakuence.nl\/en\/product\/avantgarde-duo\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/freakuence.nl\/en\/product\/avantgarde-duo\/#primaryimage","url":"https:\/\/freakuence.nl\/wp-content\/uploads\/2026\/07\/17837770369862-20210-IMG8723-1-scaled.jpg","contentUrl":"https:\/\/freakuence.nl\/wp-content\/uploads\/2026\/07\/17837770369862-20210-IMG8723-1-scaled.jpg","width":1200,"height":1800},{"@type":"BreadcrumbList","@id":"https:\/\/freakuence.nl\/en\/product\/avantgarde-duo\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/freakuence.nl\/en\/"},{"@type":"ListItem","position":2,"name":"Products","item":"https:\/\/freakuence.nl\/en\/products\/"},{"@type":"ListItem","position":3,"name":"Avantgarde Duo"}]},{"@type":"WebSite","@id":"https:\/\/freakuence.nl\/en\/#website","url":"https:\/\/freakuence.nl\/en\/","name":"Freakuence!","description":"Freakuence!","publisher":{"@id":"https:\/\/freakuence.nl\/en\/#organization"},"alternateName":"Freakuence","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/freakuence.nl\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/freakuence.nl\/en\/#organization","name":"Freakuence!","url":"https:\/\/freakuence.nl\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/freakuence.nl\/en\/#\/schema\/logo\/image\/","url":"https:\/\/freakuence.nl\/wp-content\/uploads\/2022\/05\/Brown_3_RGB_Freakuence-1.png","contentUrl":"https:\/\/freakuence.nl\/wp-content\/uploads\/2022\/05\/Brown_3_RGB_Freakuence-1.png","width":2560,"height":684,"caption":"Freakuence!"},"image":{"@id":"https:\/\/freakuence.nl\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.instagram.com\/freakuence_notorious_audio\/"]}]}},"_links":{"self":[{"href":"https:\/\/freakuence.nl\/en\/wp-json\/wp\/v2\/product\/462389","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/freakuence.nl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/freakuence.nl\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/freakuence.nl\/en\/wp-json\/wp\/v2\/media\/462872"}],"wp:attachment":[{"href":"https:\/\/freakuence.nl\/en\/wp-json\/wp\/v2\/media?parent=462389"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/freakuence.nl\/en\/wp-json\/wp\/v2\/product_brand?post=462389"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/freakuence.nl\/en\/wp-json\/wp\/v2\/product_cat?post=462389"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/freakuence.nl\/en\/wp-json\/wp\/v2\/product_tag?post=462389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}