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發表於 2011-1-24 21:48:30
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朋友問及 Berkeley Alpha DAC 的音量調較的問題,擔心細節有所損失;Michael Ritter 親自回答;
The Alpha DAC's uses a digital attenuator that operates at very high precision - far beyond 24 bits, and is dithered using a proprietary dither algorithm. As a result, the Alpha DAC's digital attenuator has the lowest distortion of any attenuator we are aware of - digital or analog, including switched precision resistor arrays. Resolution is not lost and distortion does not increase with increasing attenuation and the attenuator setting has absolutely no effect on analog output impedance. |
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