DAC's with volume control question

Asking the manufacturer for a Voltage output isn’t too much to ask. I certainly would. Standard CD output via RCA is 2 Volts, standard HDCD output via RCA is 2.2 Volts. Not all manufacturers play by the rules.

@levy03

to be honest with you, i don’t have a solid, confident answer for you on this subject

early last year, i had a RME ADI2 dac in house, it did have built-in digital volume control, but i did not use/test that aspect of it (now i regret not doing so)... i just ran it at full volume to hear its sound quality compared to other dacs i was trying, which i assume is how it would sound best... overall it is a good sounding, feature packed (if complex) unit, and many headphone users love the unit... i sold it as i felt it had a very nice clean clear crisp sound, not too lean, but head to head against the chord dacs it did not image nearly as well and the chords were a little more refined - i do remember reading in its (huge) owners manual that they painfully engineered its digital volume control to sound very good - maybe this one is worth your trying... maybe you just pick up one used (they appear on AG or USAM reasonably frequently) at a decent price to try (~$800) - easy to resell - i think at that price the sound is very good and the volume control could work for you

since that time, i moved on to some more expensive dacs, with built in remote volume in the analog domain and they are great, i did not try other lower cost ones

separately, i would mention that when it comes to digital volume attenuation, one needs to leave behind the paradigm of traditional volume control where the ’comfortable’ setting is around halfway or so... with digital you would ideally match the output of dac such that it runs much closer to full output when playing music at your usual listening levels (or at least 80-90%), for the reasons i described earlier

finally - this short video is the best i have seen explaining digital volume control and the considerations therein ... hans really knows what he is talking about and presents his thoughts in a mature, humble way
https://youtu.be/hni1ToR308o

I had a Bel Canto DAC3 in my system a while back and I couldn’t tell the difference using it as a preamp vs. my Bryston BP6, which was shocking to me.  The Gustard A22 might also be worth looking at as the guy at Soundnews.net found it to have a good preamp section.  Best of luck. 

jjss49: great video. had to watch three times but i now get the jist of it.....or somewhat understand the topic at a very rudimentary level. thank you!

djones51: thank you too. that's what i was looking/hoping to hear.....the volume control should work ok/decently without a noticeable degradation in sound.

understanding there are much better ways to get this done, i've decided to take the quickest/easiest path. 12-16 months is all i need to get outta this rig so i should be good. just ordered the 851N. should be here tomorrow. all in one plug n play box with tons of features for dirt cheap. will check back in and update the thread on my thoughts/findings.

will probably be posting many more stupid questions in about a year when i get into building a new/nicer system. hoping this emergency/quick system build will keep me happy until then. 

thanks to all 
cheers
Lev

+3 or 4 rme adi-2. Great dac and very transparent volume control. Love the basic treble and bass on the remote although is has 5 band PEQ that you can turn off and on as well. Actually its got so many damn features it gets a little confusing!! Normally stuff like this would be a gimmick but just icing on the cake for the rme.