{"id":1132,"date":"2026-05-18T12:08:15","date_gmt":"2026-05-18T10:08:15","guid":{"rendered":"https:\/\/deskaudio.eu\/?post_type=product&#038;p=1132"},"modified":"2026-10-17T13:59:39","modified_gmt":"2026-10-17T11:59:39","slug":"fosi-audio-bt20a-pro","status":"publish","type":"product","link":"https:\/\/deskaudio.eu\/sk\/produkt\/fosi-audio-bt20a-pro\/","title":{"rendered":"Fosi Audio BT20A PRO 48V"},"content":{"rendered":"<p>Fosi Audio BT20A Pro &#8211; <strong>Hi-Fi<\/strong> <strong>bluetooth zosil\u0148ova\u010d.<\/strong><\/p>\n<p><b>\u201eKompaktn\u00fd zosil\u0148ova\u010d s v\u00fdkonom, ktor\u00fd prekvap\u00ed aj n\u00e1ro\u010dn\u00fdch\u201c<\/b><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fosi Audio BT20A Pro &#8211; <strong>Hi-Fi<\/strong> <strong>bluetooth zosil\u0148ova\u010d.<\/strong><\/p>\n<p><b>\u201eKompaktn\u00fd zosil\u0148ova\u010d s v\u00fdkonom, ktor\u00fd prekvap\u00ed aj n\u00e1ro\u010dn\u00fdch\u201c<\/b><\/p>\n","protected":false},"featured_media":1160,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_glsr_average":0,"_glsr_ranking":0,"_glsr_reviews":0},"product_brand":[115],"product_cat":[79],"product_tag":[129,144,145,146,143],"da_typ":[191],"class_list":["post-1132","product","type-product","status-publish","has-post-thumbnail","product_brand-fosi-audio","product_cat-zosilnovace","product_tag-bluetooth","product_tag-pre-out","product_tag-tonove-korekcie","product_tag-vymenitelne-op-ampy","product_tag-zosilnovac","da_typ-zosilnovac","first","onbackorder","shipping-taxable","purchasable","product-type-simple"],"acf":{"da_podnadpis":"Bluetooth stereo zosil\u0148ova\u010d s TPA3255 a 48V zdrojom v balen\u00ed","da_odznak":"","da_foto_na_stole":"","da_vstupy":"Bluetooth \u00b7 RCA","da_vystupy":"Repro svorky","da_kpi_1_hodnota":"2\u00d7 220 W","da_kpi_1_popis":"RMS @ 4 \u03a9","da_kpi_2_hodnota":"TPA3255","da_kpi_2_popis":"\u010dip","da_kpi_3_hodnota":"48 V","da_kpi_3_popis":"zdroj v balen\u00ed","da_kpi_4_hodnota":"Bluetooth","da_kpi_4_popis":"bezdr\u00f4tovo","da_fit_aktivne_stav":"nevhodne","da_fit_aktivne_text":"Akt\u00edvne reproduktory maj\u00fa zosil\u0148ova\u010d v sebe. Potrebuje\u0161 len DAC, napr\u00edklad SMSL SU-1.","da_fit_aktivne_produkt":867,"da_fit_pasivne_stav":"ok","da_fit_pasivne_text":"\u00c1no. Pripoj\u00ed\u0161 pas\u00edvne reproduktory a hudbu pust\u00ed\u0161 cez Bluetooth alebo RCA.","da_fit_pasivne_produkt":"","da_fit_sluchadla_stav":"nevhodne","da_fit_sluchadla_text":"BT20A Pro nem\u00e1 sl\u00fachadlov\u00fd v\u00fdstup. Pre sl\u00fachadl\u00e1 vyber napr\u00edklad SMSL DL200.","da_fit_sluchadla_produkt":752,"da_set":"","da_alternativy":[{"situacia":"M\u00e1\u0161 aj subwoofer","produkt":1105},{"situacia":"Chce\u0161 kompletn\u00fa zostavu","produkt":912},{"situacia":"Chce\u0161 XLR vstup","produkt":145}],"da_pre_koho_ano":[{"text":"Hr\u00e1\u010dov a Home Office \u2014 okam\u017eit\u00e1 vstupenka do sveta dospel\u00e9ho Hi-Fi bez prek\u00e1\u017eaj\u00facich obrovsk\u00fdch audio komponentov na stole."},{"text":"Majite\u013eov pas\u00edvnych reproduktorov \u2014 vd\u00fdchne nov\u00fd \u017eivot ak\u00fdmko\u013evek reg\u00e1lovk\u00e1m aj n\u00e1ro\u010dnej\u0161\u00edm st\u013apov\u00fdm repros\u00fastav\u00e1m v\u010faka mohutnej rezerve pr\u00fadu."},{"text":"Vyzn\u00e1va\u010dov nekompromisnej dynamiky \u2014 48V verzia eliminuje ak\u00e9ko\u013evek \u201ezad\u00fdchanie\u201c \u010di skreslenie zvuku aj pri koncertn\u00fdch hlasitostiach."}],"da_pre_koho_nie":[{"text":"Priaznivcov viackan\u00e1lov\u00e9ho dom\u00e1ceho kina \u2014 ide o \u010distokrvn\u00e9 stereo (2.0 \/ 2.1), ktor\u00e9 nepodporuje form\u00e1ty ako 5.1, DTS \u010di Dolby Atmos.","produkt":""},{"text":"Ozvu\u010dovanie obrovsk\u00fdch vonkaj\u0161\u00edch h\u00e1l \u2014 napriek extr\u00e9mnemu \u0161pi\u010dkov\u00e9mu v\u00fdkonu je prim\u00e1rne optimalizovan\u00fd pre dom\u00e1ce Hi-Fi po\u010d\u00favanie.","produkt":""}],"da_zvuk_intro":"Vy\u0161\u0161ie nap\u00e4tie 48V preb\u00fadza v oce\u0148ovanom \u010dipe Texas Instruments TPA3255 skuto\u010dn\u00e9ho d\u00e9mona. Zvuk m\u00e1 ohromn\u00fd \"headroom\" \u2014 dynamick\u00fa rezervu, ktor\u00fa okam\u017eite uc\u00edtite.","da_zvuk_basy_titul":"Autoritat\u00edvny & Hlbok\u00fd","da_zvuk_basy_text":"V\u010faka 48V pr\u00fadu dr\u017e\u00ed zosil\u0148ova\u010d basov\u00e9 membr\u00e1ny pod absol\u00fatnou kontrolou. Basy s\u00fa mimoriadne r\u00fdchle, tvrd\u00e9 a \u00fadern\u00e9, bez ak\u00e9hoko\u013evek n\u00e1znaku dunenia \u010di rozmazania.","da_zvuk_stredy_titul":"Neuverite\u013ene \u017eiv\u00e9 & Otvoren\u00e9","da_zvuk_stredy_text":"Vok\u00e1ly z\u00edskavaj\u00fa pln\u00e9 telo, plastickos\u0165 a h\u013abku. Akustick\u00e9 n\u00e1stroje maj\u00fa vern\u00fa text\u00faru, pri\u010dom priestorov\u00e9 usporiadanie sc\u00e9ny v\u00e1s vtiahne priamo do nahr\u00e1vacieho \u0161t\u00fadia.","da_zvuk_vysky_titul":"Brilantn\u00e9 & Detailn\u00e9","da_zvuk_vysky_text":"\u010cist\u00e9 v\u00fd\u0161ky pln\u00e9 mikrodetailov bez nepr\u00edjemnej ostrosti. T\u00f3nov\u00e9 korekcie s presn\u00fdm fyzick\u00fdm klikom v stredovej polohe navy\u0161e umo\u017e\u0148uj\u00fa bleskov\u00e9 prisp\u00f4sobenie charakteru miestnosti.","da_parametre":[{"parameter":"zosilnovac_cip","vlastny_nazov":"","hodnota":"Texas Instruments TPA3255"},{"parameter":"vykon","vlastny_nazov":"","hodnota":"2\u00d7 220W pri 4 Ohmoch (RMS) \u00b7 2\u00d7 110W pri 8 Ohmoch (RMS) s pribalen\u00fdm 48V zdrojom"},{"parameter":"ine","vlastny_nazov":"Maxim\u00e1lny V\u00fdkon (Peak)","hodnota":"A\u017e 2\u00d7 300W pri 4 Ohmoch (Peak \/ \u0160pi\u010dkov\u00fd v\u00fdkon pri plnom 48V buden\u00ed)"},{"parameter":"bluetooth","vlastny_nazov":"","hodnota":"Bluetooth 5.0 s pr\u00e9miovou externou ant\u00e9nou (dosah 15 m) a kodekmi SBC\/AAC"},{"parameter":"thd","vlastny_nazov":"","hodnota":"\u2264 0.005%"},{"parameter":"rozmery","vlastny_nazov":"","hodnota":"127 \u00d7 127 \u00d7 25 mm"}],"da_navod":"","da_krok_1_titul":"Pripojte reproduktory","da_krok_1_text":"K\u00e1ble od reproduktorov zapojte do mas\u00edvnych reprosvoriek na zadnej strane (odpor\u00fa\u010dame pou\u017ei\u0165 ban\u00e1nikov\u00e9 konektory pre bleskov\u00fa manipul\u00e1ciu).","da_krok_2_titul":"Zapojte mas\u00edvne 48V nap\u00e1janie","da_krok_2_text":"Pred zapojen\u00edm 48V 5A zdroja do elektrickej siete stiahnite hlavn\u00fa hlasitos\u0165 na nulu. N\u00e1sledne prepnite predn\u00fa p\u00e1\u010dku do polohy \u201eOn\u201c.","da_krok_3_titul":"Sp\u00e1rujte zdroj hudby","da_krok_3_text":"Zapnite Bluetooth v telef\u00f3ne alebo PC, zvo\u013ete \u201eFosi Audio BT20A PRO\u201c a m\u00f4\u017eete hra\u0165. Korekcie basov a v\u00fd\u0161ok si nastavte pod\u013ea u\u0161\u00ed, alebo ich dajte do stredu na mechanick\u00fd \u201eklik\u201c (Pure Direct m\u00f3d).","da_krok_4_titul":"","da_krok_4_text":"","da_faq":[{"otazka":"Ak\u00fd je rozdiel medzi 32V a touto 48V verziou?","odpoved":"Z\u00e1sadn\u00fd. S pribalen\u00fdm 48V 5A nap\u00e1jac\u00edm zdrojom dok\u00e1\u017ee \u010dip TPA3255 pracova\u0165 na pln\u00fd v\u00fdkon a dod\u00e1va\u0165 a\u017e 2x 300W \u0161pi\u010dkovo (RMS 2x 220W pri 4 Ohm). 32V verzia je obmedzen\u00e1 na zlomok tohto v\u00fdkonu, \u010do sa prejav\u00ed na slab\u0161ej kontrole basov a skor\u0161om skreslen\u00ed zvuku pri vy\u0161\u0161\u00edch hlasitostiach."},{"otazka":"Je 48V 5A nap\u00e1jac\u00ed zdroj skuto\u010dne priamo s\u00fa\u010das\u0165ou tohto balenia?","odpoved":"\u00c1no, u n\u00e1s kupujete kompletn\u00fa, najv\u00fdkonnej\u0161iu ed\u00edciu. S\u00fa\u010das\u0165ou balenia je origin\u00e1lny, vysoko v\u00fdkonn\u00fd 48V 5A (240W) nap\u00e1jac\u00ed adapt\u00e9r. Nemus\u00edte ni\u010d zlo\u017eito dokupova\u0165 zo zahrani\u010dia ani plati\u0165 navy\u0161e \u2014 po rozbalen\u00ed m\u00e1te k dispoz\u00edcii okam\u017eit\u00fd maxim\u00e1lny v\u00fdkon."},{"otazka":"M\u00f4\u017eem na tomto zosil\u0148ova\u010di vymie\u0148a\u0165 opera\u010dn\u00e9 zosil\u0148ova\u010de (Op-Amps)?","odpoved":"\u00c1no. Fosi Audio BT20A Pro je vybaven\u00fd p\u00e4ticami DIP8, ktor\u00e9 umo\u017e\u0148uj\u00fa jednoduch\u00fa v\u00fdmenu opera\u010dn\u00fdch zosil\u0148ova\u010dov (tzv. Op-Amp Rolling). Predin\u0161talovan\u00e9 NE5532 \u010dipy m\u00f4\u017eete kedyko\u013evek vymeni\u0165 za pr\u00e9miov\u00e9 MUSES02, OPA2134PA, OPA2604AP alebo diskr\u00e9tne moduly Sparkos Labs a doladi\u0165 si zvuk presne pod\u013ea va\u0161ich preferenci\u00ed."}]},"_links":{"self":[{"href":"https:\/\/deskaudio.eu\/sk\/wp-json\/wp\/v2\/product\/1132","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deskaudio.eu\/sk\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/deskaudio.eu\/sk\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/deskaudio.eu\/sk\/wp-json\/wp\/v2\/comments?post=1132"}],"version-history":[{"count":25,"href":"https:\/\/deskaudio.eu\/sk\/wp-json\/wp\/v2\/product\/1132\/revisions"}],"predecessor-version":[{"id":3403,"href":"https:\/\/deskaudio.eu\/sk\/wp-json\/wp\/v2\/product\/1132\/revisions\/3403"}],"acf:post":[{"embeddable":true,"href":"https:\/\/deskaudio.eu\/sk\/wp-json\/wp\/v2\/product\/752"},{"embeddable":true,"href":"https:\/\/deskaudio.eu\/sk\/wp-json\/wp\/v2\/product\/867"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deskaudio.eu\/sk\/wp-json\/wp\/v2\/media\/1160"}],"wp:attachment":[{"href":"https:\/\/deskaudio.eu\/sk\/wp-json\/wp\/v2\/media?parent=1132"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deskaudio.eu\/sk\/wp-json\/wp\/v2\/product_brand?post=1132"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deskaudio.eu\/sk\/wp-json\/wp\/v2\/product_cat?post=1132"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deskaudio.eu\/sk\/wp-json\/wp\/v2\/product_tag?post=1132"},{"taxonomy":"da_typ","embeddable":true,"href":"https:\/\/deskaudio.eu\/sk\/wp-json\/wp\/v2\/da_typ?post=1132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}