{"id":606,"date":"2026-05-05T18:16:53","date_gmt":"2026-05-05T16:16:53","guid":{"rendered":"https:\/\/deskaudio.eu\/?post_type=product&#038;p=606"},"modified":"2026-10-17T03:17:07","modified_gmt":"2026-10-17T01:17:07","slug":"fosi-audio-za3","status":"publish","type":"product","link":"https:\/\/deskaudio.eu\/cs\/produkt\/fosi-audio-za3\/","title":{"rendered":"Fosi Audio ZA3"},"content":{"rendered":"<p><strong>Fosi Audio ZA3 \u2013 V\u00fdkonn\u00fd Class-D zesilova\u010d pro n\u00e1ro\u010dn\u00e9 desktopov\u00e9 Hi-Fi sestavy.<\/strong><\/p>\n<p><strong>Siln\u00fd, \u010dist\u00fd a p\u0159ekvapiv\u011b dosp\u011bl\u00fd zvuk v kompaktn\u00edm hlin\u00edkov\u00e9m t\u011ble.<\/strong> ZA3 nen\u00ed jen dal\u0161\u00ed \u201emini zesilova\u010d\u201c \u2013 vznikl na z\u00e1klad\u011b zp\u011btn\u00e9 vazby tis\u00edc\u016f audio nad\u0161enc\u016f a byl navr\u017een tak, aby konkuroval i v\u00fdrazn\u011b dra\u017e\u0161\u00edm Hi-Fi komponent\u016fm.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>Fosi Audio ZA3 \u2013 V\u00fdkonn\u00fd Class-D zesilova\u010d pro n\u00e1ro\u010dn\u00e9 desktopov\u00e9 Hi-Fi sestavy.<\/strong><\/p>\n<p><strong>Siln\u00fd, \u010dist\u00fd a p\u0159ekvapiv\u011b dosp\u011bl\u00fd zvuk v kompaktn\u00edm hlin\u00edkov\u00e9m t\u011ble.<\/strong> ZA3 nen\u00ed jen dal\u0161\u00ed \u201emini zesilova\u010d\u201c \u2013 vznikl na z\u00e1klad\u011b zp\u011btn\u00e9 vazby tis\u00edc\u016f audio nad\u0161enc\u016f a byl navr\u017een tak, aby konkuroval i v\u00fdrazn\u011b dra\u017e\u0161\u00edm Hi-Fi komponent\u016fm.<\/p>\n","protected":false},"featured_media":598,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_glsr_average":0,"_glsr_ranking":0,"_glsr_reviews":0},"product_brand":[116],"product_cat":[80],"product_tag":[153,155,169,181,187,189,208],"da_typ":[199],"class_list":["post-606","product","type-product","status-publish","has-post-thumbnail","product_brand-fosi-audio","product_cat-zesilovace","product_tag-12v-trigger-cs","product_tag-balanced-cs","product_tag-mono-rezim-cs","product_tag-subwoofer-cs","product_tag-vymenitelne-op-ampy","product_tag-xlr-cs","product_tag-zesilovac","da_typ-zesilovac","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":{"da_podnadpis":"Stereo zesilova\u010d t\u0159\u00eddy D se vstupem XLR pro pasivn\u00ed reprosoustavy","da_odznak":"","da_foto_na_stole":"","da_vstupy":"XLR \u00b7 TRS \u00b7 RCA","da_vystupy":"Repro svorky \u00b7 Sub out","da_kpi_1_hodnota":"2\u00d7 155 W","da_kpi_1_popis":"@ 4 \u03a9","da_kpi_2_hodnota":"TPA3255","da_kpi_2_popis":"\u010dip","da_kpi_3_hodnota":"XLR","da_kpi_3_popis":"symetrick\u00fd vstup","da_kpi_4_hodnota":"106 dB","da_kpi_4_popis":"SNR","da_fit_aktivne_stav":"nevhodne","da_fit_aktivne_text":"Aktivn\u00ed reprosoustavy maj\u00ed zesilova\u010d v sob\u011b. Pot\u0159ebujete jen DAC, nap\u0159\u00edklad SMSL SU-1.","da_fit_aktivne_produkt":878,"da_fit_pasivne_stav":"ok","da_fit_pasivne_text":"Ano, ZA3 je stav\u011bn\u00fd pro pasivn\u00ed reprosoustavy. Pokud pou\u0161t\u00edte hudbu z PC nebo TV, p\u0159idejte DAC, nejjednodu\u0161eji v sad\u011b SU-1 + ZA3.","da_fit_pasivne_produkt":831,"da_fit_sluchadla_stav":"nevhodne","da_fit_sluchadla_text":"ZA3 nem\u00e1 sluch\u00e1tkov\u00fd v\u00fdstup. Pro sluch\u00e1tka zvolte nap\u0159\u00edklad SMSL DL200.","da_fit_sluchadla_produkt":772,"da_set":831,"da_alternativy":[{"situacia":"Chcete kompletn\u00ed sestavu","produkt":831},{"situacia":"Chcete XLR a HDMI ARC","produkt":1006},{"situacia":"Chcete Bluetooth","produkt":1141}],"da_pre_koho_ano":[{"text":"Majitele kvalitn\u00edch pasivn\u00edch reprosoustav (KEF, ELAC, Dali) \u2014 ZA3 z nich vy\u017ed\u00edm\u00e1 maximum"},{"text":"Pr\u00e1ci i z\u00e1bavu u PC \u2014 XLR vstupy efektivn\u011b eliminuj\u00ed \u0161um z po\u010d\u00edta\u010de"},{"text":"Budouc\u00ed \u201eupgradisty\" \u2014 p\u0159idejte druh\u00fd ZA3 a vytvo\u0159te nekompromisn\u00ed Dual-Mono setup"},{"text":"Hleda\u010de detail\u016f \u2014 dola\u010fte si charakter zvuku v\u00fdm\u011bnou opera\u010dn\u00edch zesilova\u010d\u016f (Op-Amp)"}],"da_pre_koho_nie":[{"text":"\u00dapln\u00e9 za\u010d\u00e1te\u010dn\u00edky hledaj\u00edc\u00ed \u201ev\u0161e v jednom\" \u2014 nem\u00e1 Bluetooth ani vestav\u011bn\u00fd DAC","produkt":""},{"text":"U\u017eivatele gramofon\u016f bez vlastn\u00edho nebo extern\u00edho p\u0159edzesilova\u010de","produkt":""}],"da_zvuk_intro":"Neutr\u00e1ln\u00ed charakter \u201ewire with gain\" \u2014 do hudby nep\u0159id\u00e1v\u00e1 nic, co v nahr\u00e1vce nem\u00e1 b\u00fdt.","da_zvuk_basy_titul":"Pevn\u00e9 a kontrolovan\u00e9","da_zvuk_basy_text":"\u00dadern\u00e9 bez n\u00e1znaku \u201edun\u011bn\u00ed\". Dod\u00e1v\u00e1 autoritu i n\u00e1ro\u010dn\u011bj\u0161\u00edm basov\u00fdm m\u011bni\u010d\u016fm.","da_zvuk_stredy_titul":"\u010cist\u00e9 a detailn\u00ed","da_zvuk_stredy_text":"Vok\u00e1ly zn\u011bj\u00ed p\u0159irozen\u011b a v prostoru jsou jasn\u011b odd\u011bleny od n\u00e1stroj\u016f.","da_zvuk_vysky_titul":"Vzdu\u0161n\u00e9 a bez agresivity","da_zvuk_vysky_text":"Roz\u0161\u00ed\u0159en\u00e9 a detailn\u00ed. Vhodn\u00e9 pro celodenn\u00ed poslech bez \u00fanavy sluchu.","da_parametre":[{"parameter":"zosilnovac_cip","vlastny_nazov":"","hodnota":"Texas Instruments TPA3255 (absolutn\u00ed \u0161pi\u010dka ve t\u0159\u00edd\u011b D)"},{"parameter":"vykon","vlastny_nazov":"","hodnota":"2\u00d7 155W (4\u03a9 Stereo) \/ 1\u00d7 235W (Mono, 4\u03a9)"},{"parameter":"vstupy","vlastny_nazov":"","hodnota":"XLR \/ \u00bc\" TRS (Balanced), RCA (Unbalanced)"},{"parameter":"vystupy","vlastny_nazov":"","hodnota":"Repro termin\u00e1ly (ban\u00e1nky\/vodi\u010d), Aktivn\u00ed Subwoofer Out"},{"parameter":"ine","vlastny_nazov":"Kvalita sign\u00e1lu","hodnota":"SNR \u2265106dB \u00b7 THD <0.006%"},{"parameter":"ine","vlastny_nazov":"Speci\u00e1ln\u00ed funkce","hodnota":"12V Trigger in \u00b7 v\u00fdm\u011bnn\u00e9 Op-Ampy (5 patic)"}],"da_navod":"","da_krok_1_titul":"P\u0159ipojte reproduktory","da_krok_1_text":"Doporu\u010dujeme ban\u00e1nky pro pevn\u00fd a spolehliv\u00fd spoj. Dbejte na spr\u00e1vnou polaritu (+\/\u2212).","da_krok_2_titul":"Zvolte vstup","da_krok_2_text":"Pomoc\u00ed p\u0159ep\u00edna\u010de na p\u0159edn\u00edm panelu vyberte RCA (nesymetrick\u00fd) nebo XLR\/TRS (symetrick\u00fd) vstup.","da_krok_3_titul":"Zapn\u011bte zesilova\u010d","da_krok_3_text":"Podr\u017ete ovlada\u010d hlasitosti po dobu 2 sekund \u2014 rozsv\u00edt\u00ed se oran\u017eov\u00e1 LED. Hotovo.","da_krok_4_titul":"","da_krok_4_text":"","da_faq":[{"otazka":"Pot\u0159ebuji k n\u011bmu DAC?","odpoved":"Nen\u00ed to nezbytn\u00e9, ale pro zvuk bez digit\u00e1ln\u00edho \u0161umu z PC ho d\u016frazn\u011b doporu\u010dujeme. Ide\u00e1ln\u00ed partner je Fosi ZD3 \u2014 je pln\u011b symetrick\u00fd a vizu\u00e1ln\u011b se ZA3 lad\u00ed."},{"otazka":"M\u016f\u017eu p\u0159ipojit subwoofer?","odpoved":"Ano, ZA3 m\u00e1 dedikovan\u00fd v\u00fdstup pro aktivn\u00ed subwoofer s doln\u00ed propust\u00ed nastavenou na 200 Hz. Nejste tak odk\u00e1z\u00e1ni na pasivn\u00ed pre-out jako u konkurence."},{"otazka":"Co znamen\u00e1 re\u017eim Mono (BTL)?","odpoved":"P\u0159epnut\u00edm do Mono re\u017eimu se v\u00fdkon soust\u0159ed\u00ed do jednoho kan\u00e1lu (235W do 4\u03a9). Se dv\u011bma kusy ZA3 tak vytvo\u0159\u00edte brut\u00e1ln\u011b v\u00fdkonn\u00fd Dual-Mono stereo syst\u00e9m."},{"otazka":"Bude fungovat s 8ohmov\u00fdmi reproduktory?","odpoved":"Naprosto bez probl\u00e9m\u016f. ZA3 podporuje reproduktory s impedanc\u00ed od 2 do 8 Ohm\u016f."}]},"_links":{"self":[{"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/product\/606","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/comments?post=606"}],"version-history":[{"count":8,"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/product\/606\/revisions"}],"predecessor-version":[{"id":3954,"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/product\/606\/revisions\/3954"}],"acf:post":[{"embeddable":true,"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/product\/772"},{"embeddable":true,"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/product\/831"},{"embeddable":true,"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/product\/878"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/media\/598"}],"wp:attachment":[{"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/media?parent=606"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/product_brand?post=606"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/product_cat?post=606"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/product_tag?post=606"},{"taxonomy":"da_typ","embeddable":true,"href":"https:\/\/deskaudio.eu\/cs\/wp-json\/wp\/v2\/da_typ?post=606"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}