{"id":15578,"date":"2026-05-08T02:09:35","date_gmt":"2026-05-08T00:09:35","guid":{"rendered":"https:\/\/studio-dealers.com\/?post_type=product&#038;p=15578"},"modified":"2026-08-24T03:41:09","modified_gmt":"2026-08-24T01:41:09","slug":"thermionic-culture-earlybird-2-3","status":"publish","type":"product","link":"https:\/\/studio-dealers.com\/en\/produit\/thermionic-culture-earlybird-2-3\/","title":{"rendered":"Thermionic Culture Earlybird 2.3"},"content":{"rendered":"<p data-path-to-node=\"3\">L\u2019<b data-path-to-node=\"3\" data-index-in-node=\"2\">Earlybird 2.3<\/b> est un pr\u00e9amplificateur \u00e0 lampes deux canaux haute fid\u00e9lit\u00e9 utilisant un circuit sym\u00e9trique push-pull en <b data-path-to-node=\"3\" data-index-in-node=\"121\">Classe A<\/b>. Cette architecture unique garantit un niveau de bruit extr\u00eamement faible et une r\u00e9serve de puissance (<b data-path-to-node=\"3\" data-index-in-node=\"233\">headroom<\/b>) massive tout en limitant la distorsion. L&#8217;unit\u00e9 int\u00e8gre des transformateurs d&#8217;entr\u00e9e et de sortie con\u00e7us en collaboration avec <b data-path-to-node=\"3\" data-index-in-node=\"370\">Sowter<\/b>, optimis\u00e9s pour r\u00e9duire la distorsion, particuli\u00e8rement dans les basses fr\u00e9quences, et minimiser le d\u00e9phasage.<\/p>\n<p data-path-to-node=\"4\">Le pr\u00e9amplificateur propose une polyvalence \u00e9tendue gr\u00e2ce \u00e0 son commutateur de fonction \u00e0 cinq positions. Il permet de configurer l&#8217;appareil comme pr\u00e9ampli micro avec deux options d&#8217;imp\u00e9dance (<b data-path-to-node=\"4\" data-index-in-node=\"193\">300 <span class=\"math-inline\" data-math=\"\\Omega\" data-index-in-node=\"197\">$\\Omega$<\/span><\/b> ou <b data-path-to-node=\"4\" data-index-in-node=\"207\">1200 <span class=\"math-inline\" data-math=\"\\Omega\" data-index-in-node=\"212\">$\\Omega$<\/span><\/b>), d&#8217;activer un att\u00e9nuateur (<b data-path-to-node=\"4\" data-index-in-node=\"247\">PAD<\/b> de <span class=\"math-inline\" data-math=\"18\\text{ dB}\" data-index-in-node=\"254\">$18\\text{ dB}$<\/span>), ou de passer en mode <b data-path-to-node=\"4\" data-index-in-node=\"290\">LINE<\/b> pour le traitement de signaux de niveau ligne. Un mode <b data-path-to-node=\"4\" data-index-in-node=\"350\">PULLET<\/b> est \u00e9galement disponible pour fournir le gain de compensation n\u00e9cessaire \u00e0 l\u2019\u00e9galiseur passif \u00e9ponyme de la marque.<\/p>\n<p data-path-to-node=\"5\">La section d&#8217;\u00e9galisation se compose de trois bandes d&#8217;accentuation (<b data-path-to-node=\"5\" data-index-in-node=\"68\">Active Lift<\/b>) agissant directement sur la boucle de contre-r\u00e9action du circuit. Cette m\u00e9thode pr\u00e9serve l&#8217;int\u00e9grit\u00e9 du signal en \u00e9vitant l&#8217;ajout d&#8217;\u00e9tages de gain suppl\u00e9mentaires. Les courbes <b data-path-to-node=\"5\" data-index-in-node=\"257\">Varislope<\/b> sont utilis\u00e9es pour les r\u00e9glages de basses et d&#8217;aigus, tandis que le r\u00e9glage des m\u00e9diums propose deux fr\u00e9quences centrales (<span class=\"math-inline\" data-math=\"800\\text{ Hz}\" data-index-in-node=\"391\">$800\\text{ Hz}$<\/span> et <span class=\"math-inline\" data-math=\"2,5\\text{ kHz}\" data-index-in-node=\"408\">$2,5\\text{ kHz}$<\/span>). Un filtre coupe-bas commutable (<span class=\"math-inline\" data-math=\"40\\text{ Hz}\" data-index-in-node=\"457\">$40\\text{ Hz}$<\/span>, <span class=\"math-inline\" data-math=\"100\\text{ Hz}\" data-index-in-node=\"471\">$100\\text{ Hz}$<\/span> et <span class=\"math-inline\" data-math=\"800\\text{ Hz}\" data-index-in-node=\"488\">$800\\text{ Hz}$<\/span>) compl\u00e8te le sculptage sonore. En sortie, des potentiom\u00e8tres de trim permettent de saturer les lampes en interne tout en ajustant le niveau final pour prot\u00e9ger les convertisseurs suivants. Les vum\u00e8tres disposent d&#8217;une \u00e9chelle compress\u00e9e au-dessus de <span class=\"math-inline\" data-math=\"0\\text{ VU}\" data-index-in-node=\"752\">$0\\text{ VU}$<\/span> pour une lecture pr\u00e9cise des signaux non compress\u00e9s \u00e0 haut niveau.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pr\u00e9amplificateur \u00e0 lampes push-pull Classe A deux canaux avec \u00e9galisation active.<\/p>\n","protected":false},"featured_media":15531,"template":"","meta":{"_acf_changed":false},"product_brand":[165],"product_cat":[217,218],"product_tag":[],"class_list":["post-15578","product","type-product","status-publish","has-post-thumbnail","product_brand-thermionic-culture","product_cat-peripheriques-racks","product_cat-preamplis-mono-stereo","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/studio-dealers.com\/en\/wp-json\/wp\/v2\/product\/15578","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/studio-dealers.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/studio-dealers.com\/en\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":0,"href":"https:\/\/studio-dealers.com\/en\/wp-json\/wp\/v2\/product\/15578\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/studio-dealers.com\/en\/wp-json\/wp\/v2\/media\/15531"}],"wp:attachment":[{"href":"https:\/\/studio-dealers.com\/en\/wp-json\/wp\/v2\/media?parent=15578"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/studio-dealers.com\/en\/wp-json\/wp\/v2\/product_brand?post=15578"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/studio-dealers.com\/en\/wp-json\/wp\/v2\/product_cat?post=15578"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/studio-dealers.com\/en\/wp-json\/wp\/v2\/product_tag?post=15578"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}