{"id":34315,"date":"2025-10-02T19:11:18","date_gmt":"2025-10-02T17:11:18","guid":{"rendered":"https:\/\/austinas.lv\/shop\/be-kategorijos\/astell-kern-afutura-se300-hi-res-music-player-silver\/"},"modified":"2026-07-28T17:17:42","modified_gmt":"2026-07-28T15:17:42","slug":"astell-kern-afutura-se300-hi-res-music-player-silver","status":"publish","type":"product","link":"https:\/\/austinas.lv\/lt\/shop\/garso-irenginiai\/nesiojami-dac-amp-irenginiai\/astell-kern-afutura-se300-hi-res-music-player-silver\/","title":{"rendered":"Astell &amp; Kern A&amp;futura SE300 Hi-Res Music Player (Silver)"},"content":{"rendered":"<p><strong>Pagrindin\u0117s savyb\u0117s<\/strong><\/p>\n<ul>\n<li>Itin tikslus 24 bit\u0173 R-2R DAC<\/li>\n<li>TERATON ALPHA technologija<\/li>\n<li>Klas\u0117s A\/AB dvigubi stiprintuvai<\/li>\n<li>2 pakop\u0173 stiprinimo lygis iki 6 Vrms<\/li>\n<li>OS ir NOS re\u017eimai<\/li>\n<li>Iki 12 valand\u0173 baterijos veikimo laikas<\/li>\n<li>Gimtas DSD256 32 bit\u0173\/384 kHz<\/li>\n<li>5,46&quot; Full HD ekranas<\/li>\n<li>Crimson temin\u0117 vartotojo s\u0105saja ir patirtis<\/li>\n<li>Spalvomis koduotas ap\u0161viestas garsumo reguliatorius<\/li>\n<\/ul>\n<p><iframe loading=\"lazy\" title=\"Astell&amp;Kern A&amp;futura SE300\" width=\"1020\" height=\"574\" src=\"https:\/\/www.youtube.com\/embed\/uMPyXI1b91A?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p><strong>Apra\u0161ymas<\/strong><\/p>\n<p><strong>Pilnai diskretus 24 bit\u0173 R-2R DAC<\/strong><\/p>\n<p>Nor\u0117dami u\u017etikrinti, kad <strong>A &amp;futura SE300<\/strong> garso grotuvas geriau atkurt\u0173<br \/>\nanaloginius garsus, pirmojo dizaino etapo metu nusprend\u0117me pirm\u0105 kart\u0105<br \/>\nsujungti DAC ir AMP dalis.<\/p>\n<p><strong>SE300<\/strong> tiekia su R-2R DAC, o ne Delta-Sigma DAC, kuris da\u017eniausiai<br \/>\nnaudojamas kituose garso grotuvuose. R-2R DAC, dar vadinamas kop\u0117\u010di\u0173 DAC, nes<br \/>\nrezistoriai i\u0161d\u0117styti kop\u0117\u010di\u0173 forma, si\u016blo nat\u016bral\u0173, ta\u010diau dinami\u0161k\u0105 Hi-Fi<br \/>\ngars\u0105, ta\u010diau tai labai techni\u0161ka ir sud\u0117tinga \u012fgyvendinti, nes reikalingi<br \/>\nsud\u0117tingi tiksl\u016bs rezistoriai ir sunku valdyti sroves. Nepaisant \u0161i\u0173 technini\u0173<br \/>\ni\u0161\u0161\u016bki\u0173, po daugelio met\u0173 k\u016brimo ir daug bandym\u0173 bei klaid\u0173 mums pavyko tai<br \/>\n\u012fveikti ir sukurti nauj\u0105 analogin\u012f gars\u0105. \u0160io proceso metu kruop\u0161\u010diai<br \/>\ni\u0161sirinkome kiekvien\u0105 i\u0161 96 itin tiksli\u0173 rezistori\u0173 ir u\u017ebaig\u0117me savo R-2R DAC<br \/>\ntechnologij\u0105.<\/p>\n<p><strong>SE300<\/strong> priartina mus prie analoginio garso i\u0161 skaitmeninio \u0161altinio<br \/>\nrealizavimo ir yra ilgos Astell&amp;Kern kelion\u0117s rezultatas, kurius pasi\u017eymi<br \/>\nkompromis\u0173 nesiekian\u010diu meistri\u0161kumu, ie\u0161kant galutinio garso sprendimo.<\/p>\n<p><strong>24 bit\u0173 dekodavimo realizavimas su R-2R DAC<\/strong><\/p>\n<p>R-2R DAC viduje <strong>SE300<\/strong> i\u0161d\u0117sto 48 poras (23xR ir 25x2R) i\u0161 96 itin tiksli\u0173<br \/>\nrezistori\u0173, kad sukurt\u0173 analoginius signalus, taip realizuodamas tikr\u0105 Hi-Fi<br \/>\n24 bit\u0173 dekodavim\u0105.<\/p>\n<p>**Itin tiksli\u0173 rezistori\u0173 dizain<\/p>\n<p><iframe loading=\"lazy\" title=\"Astell&amp;Kern A&amp;futura SE300\" width=\"1020\" height=\"574\" src=\"https:\/\/www.youtube.com\/embed\/uMPyXI1b91A?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>SE300<\/strong> , ketvirtasis modelis i\u0161 <strong>A &amp;futura<\/strong> asortimento, yra auk\u0161\u010diausios<br \/>\nklas\u0117s skaitmeninis garso grotuvas, kuris paveldi \u0161i\u0105 tapatyb\u0119 ir i\u0161ple\u010dia<br \/>\ngarso galimybes su visi\u0161kai naujai \u012fdiegta technologija. <strong>A &amp;futura SE300<\/strong><br \/>\nyra apr\u016bpintas itin rafinuotu R-2R DAC, Class A\/AB dvigubais stiprintuvais,<br \/>\nsukurtais naudojant m\u016bs\u0173 patentuot\u0105 TERATON ALPHA technologij\u0105, ir pirm\u0105 kart\u0105<br \/>\n\u2013 savaranki\u0161kai sukurta FPGA optimizuota technologija. Su \u0161iais<br \/>\nneprilygstamais komponentais jis si\u016blo tikr\u0105j\u0105 <strong>Astell &amp;Kern<\/strong> garso<br \/>\nfilosofij\u0105 ir technologij\u0105.<\/p>\n","protected":false},"featured_media":26222,"comment_status":"open","ping_status":"closed","template":"","meta":[],"pwb-brand":[1591],"false":[1429,1433],"product_tag":[],"class_list":{"0":"post-34315","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"pwb-brand-astell-kern","7":"product_cat-garso-irenginiai","8":"product_cat-nesiojami-dac-amp-irenginiai","10":"first","11":"instock","12":"taxable","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"jetpack_sharing_enabled":true,"brands":[{"id":1591,"name":"Astell &amp; Kern","slug":"astell-kern"}],"_links":{"self":[{"href":"https:\/\/austinas.lv\/lt\/wp-json\/wp\/v2\/product\/34315","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/austinas.lv\/lt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/austinas.lv\/lt\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/austinas.lv\/lt\/wp-json\/wp\/v2\/comments?post=34315"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/austinas.lv\/lt\/wp-json\/wp\/v2\/media\/26222"}],"wp:attachment":[{"href":"https:\/\/austinas.lv\/lt\/wp-json\/wp\/v2\/media?parent=34315"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/austinas.lv\/lt\/wp-json\/wp\/v2\/pwb-brand?post=34315"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/austinas.lv\/lt\/wp-json\/wp\/v2\/false?post=34315"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/austinas.lv\/lt\/wp-json\/wp\/v2\/product_tag?post=34315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}