[Reticuli2]

Just wondering if there's a list or someone knows a bunch off the top of their head.
 
So far I see Fiio E6 and E7 has them.

 

[Loevhagen]

Aren't digital volume control reducing the bit depth and subsequently kill dynamics in the music? 

 

[IndieScent]

Audio GD have some with digital volume iirc. NFB-5, NFB-10SE, Master 5 and 6.

edited 12 to 10

 

[xxhaxx]

Quote:

Audio GD have some with digital volume iirc. NFB-5, NFB-12SE, Master 5 and 6.

NFB-10 not 12 

 

[IndieScent]

NFB-10 not 12 

ah, yes. dont know what cross my mind that made me typed 12 instead of 10.

 

[Reticuli2]

I think they're usually like digitally controlled pots, right?  I know I've heard of DACs and CD players "lowering bit depth" with their volume controls, but I don't know if there's any truth to it.  Maybe, but technically if you express total dynamic range in terms of real world bit depth (like "18 bit" which is very high actually) any reduction in the source's output potentially decreases this spec.  Hence the reason companies often use very hot outputs to make their performance seem better.  It's easier to get great S/N and TDR with a 4V output.  But I'm not sure about the reality of the bit-depth-reducing thing in the DAC-stage people used to complain about on my Denon DCM-370 in storage, for instance.  I'll leave that to more technically-inclined peeps to comment on.