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Òåìà: Ïåðåêëþ÷àòåëü Gain
Âðåìÿ: 21.07.2009 16:34 |
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Çäðàâñòâóéòå âñåì! Îáúÿñíèòå ïîæàëóéñòà ÷òî çà ïåðåêëþ÷àòåëü íà çàäíåé ïàíåëè óñèëèòåëÿ (äëÿ ÷åãî îí íóæåí?) - Gain 26dB/32dB/1.4V? Çàðàíåå âñåì áëàãîäàðíà 
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Òåìà: Re: Ïåðåêëþ÷àòåëü Gain
Âðåìÿ: 21.07.2009 20:08 |
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68ru Yamaha-3000, SL-990  
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Ýòî âõîäíàÿ ÷óâñòâèòåëüíîñòü, òèïà >"Sensitivity is selectable between 0.775 / 1 / 1.4 V." Çäåñü íåìíîãî ïðî ýòî åñòü: >"Èíæåíåðû-çâóêîòåõíèêè òåðïåòü íå ìîãóò ïîäîáíûõ íåîäíîçíà÷íîñòåé, ïîýòîìó áûëà èçîáðåòåíà íîâàÿ åäèíèöà: dBu, ãäå 0 dBu îçíà÷àåò 0.775 âîëüò áåçî âñÿêîãî îòíîøåíèÿ ê êàêîìó-ëèáî èìïåäàíñó. Åùå ðàç ïðèäåòñÿ ñêàçàòü, ÷òî èíäåêñ "u" íè÷åãî íå îçíà÷àåò. Èíîãäà "dBu" çàïèñûâàåòñÿ êàê "dBv" (îáðàòèòå âíèìàíèå íà ìàëåíüêóþ áóêâó "v"). Îäíàêî äîïîëíèòåëüíóþ ïóòàíèöó âíîñèò åùå îäíà åäèíèöà - dBV (îáðàòèòå âíèìàíèå íà çàãëàâíóþ áóêâó V), äëÿ êîòîðîé 0 dBV îçíà÷àåò 1 Âîëüò." |
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The Truth Is Out Here... >Èñòèíà Ãäå-òî Ðÿäîì...<
Fox Mulder. |
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