NAD M51 DAC

http://nadelectronics.com/products/masters-series/M51-Direct-Digital-DAC

這隻有個有趣之處，音量說是用35bits DSP處理跑出來的，

The extreme headroom afforded by the 35-bit architecture allows for a DSP-based volume control that does not reduce resolution. Even with 24-bit high definition signals, the output can be attenuated by 66dB (very, very quiet) before bit truncation begins.

嗯...這不知是啥道理，那個66該是35-24=11，11*6=66；

假設最後轉換成類比的DAC電路還是24bits，
那麼音量每壓低6dB，振幅輸出就是少一半，24bits的數位資料最高一個bit就是0，最低一個就砍掉了...
有差嗎？

又，有HDMI輸入喔～