I think so

來源: vtcc 於 2009-04-11 11:20:30 [] [舊帖] [給我悄悄話] 閱讀數 : (117 bytes)
回答: please come in 由 vtcc 於 2009-04-10 18:28:20

Most of the amp in the market are using DC circuits, only the old or high end one that using tubes are different.

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