[問題] 前後級是否要相同設計才能顯出原本優點?
會有這個疑問是因為
不少擴大機都標榜 純A類 全平衡放大 無負回饋 等等 很多設計賣點
但像我這種雜食性的 前後級不同廠牌 這不禁讓我開始懷疑
如果前後級設計原理不同 是否優勢就會沒了?
好比我的後級本身是平衡放大 但不是A類 也不是無負回饋(non feed-back)
那這樣了話 我如果換個很貴的 標榜A類 又non feed-back的前級 是否意義不大?
因為前面前級放大訊號雖然沒有回饋 又是A類
但到了後級 就不是這麼一回事啦~ 既非A類 又有feed-back
不知道大家有沒有想過這個問題..
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