{"product_id":"lector-zoe-preamplificatore-usato","title":"Lector ZOE Preamplificatore (USATO)","description":"\u003cp\u003e\u003cstrong\u003eImballo,Telecomando\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLector presenta ZOE (Zero Ohm Energy), un preamplificatore a valvole progettato per offrire un’alimentazione estremamente stabile e prestazioni sonore di alto livello. Il cuore del progetto è un innovativo circuito di regolazione della tensione in configurazione parallelo\/shunt, una soluzione particolarmente rara nelle applicazioni audio.\u003c\/p\u003e\n\u003cp\u003eA differenza dei tradizionali regolatori in serie, nel circuito di alimentazione di ZOE non sono presenti dispositivi attivi attraversati direttamente dalla corrente. La caduta di tensione è determinata da componenti passivi di alta qualità, mentre il dispositivo attivo opera in parallelo, assorbendo la corrente necessaria per mantenere costante la tensione di uscita.\u003c\/p\u003e\n\u003cp\u003eQuesta particolare architettura consente di ottenere un’alimentazione a bassissima impedenza, ideale per garantire alle valvole un’erogazione di energia stabile e immediata. Il progetto è inoltre completamente privo di controreazione negativa, con un’architettura a zero feedback studiata per preservare naturalezza, dinamica e trasparenza del segnale audio.\u003c\/p\u003e\n\u003cp\u003eLa scelta del circuito shunt comporta una dissipazione termica elevata e richiede quindi un'alimentazione generosa, trasformatori di dimensioni importanti e un sistema di dissipazione particolarmente efficace. Una filosofia progettuale che ricorda quella degli amplificatori in Classe A e che testimonia l’attenzione di Lector alla qualità dell’alimentazione e alla semplicità del percorso del segnale.\u003c\/p\u003e\n\u003cp\u003eZOE rappresenta così una sintesi tra tecnologia, progettazione circuitale e filosofia audiofila, pensata per chi ricerca un preamplificatore a valvole raffinato, stabile e orientato alla massima qualità sonora.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCategoria\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eParametro\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eValore\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIngressi\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSensibilità d'ingresso\u003c\/td\u003e\n\u003ctd\u003eMin. 220 mV per 98 dB S\/N; max. 5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRapporto S\/N\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA-weighted, IEC268\u003c\/td\u003e\n\u003ctd\u003e98 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eSotto 220 mV\u003c\/td\u003e\n\u003ctd\u003e80 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStadio valvolare\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eValvola\u003c\/td\u003e\n\u003ctd\u003eECC-802S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eGuadagno\u003c\/td\u003e\n\u003ctd\u003e14 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRisposta in frequenza\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBanda\u003c\/td\u003e\n\u003ctd\u003e15 Hz – 100 kHz ±1,5 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUscita\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eImpedenza\u003c\/td\u003e\n\u003ctd\u003e250 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eTensione d'uscita\u003c\/td\u003e\n\u003ctd\u003eMin. 2 V RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIngressi linea\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNumero\u003c\/td\u003e\n\u003ctd\u003e5 ingressi stereo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUscite registrazione\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRec Out\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUscite\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePassive Volume Output\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eMain Output\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlimentazione\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTensione\u003c\/td\u003e\n\u003ctd\u003e100 \/ 110 \/ 230 \/ 240 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eFrequenza\u003c\/td\u003e\n\u003ctd\u003e50 \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003ePotenza\u003c\/td\u003e\n\u003ctd\u003e50 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensioni\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eL × P × A\u003c\/td\u003e\n\u003ctd\u003e400 × 300 × 105 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePeso\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNetto\u003c\/td\u003e\n\u003ctd\u003e7 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eLordo\u003c\/td\u003e\n\u003ctd\u003e8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Lector","offers":[{"title":"Default Title","offer_id":54763484086610,"sku":null,"price":1700.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0708\/0296\/4793\/files\/LectorZOEPreamplificatore_USATO_front.png?v=1789826010","url":"https:\/\/hificore.it\/products\/lector-zoe-preamplificatore-usato","provider":"HifiCore","version":"1.0","type":"link"}