Low gain dac!

Thanks for the advice, but I like the sound of tubes, and just to be clear, my system got so much better when I got the Supratek, will never sell it I suspect, it makes the artists stand in my living room so to speak, my dac is good, but I suspect there are better dac’s out there today, I think the Dac30 is from 2012.
It is not that I don’t find a good listening level either, it just would be nice with a bit more adjustments range, and as I was looking to change my dac I thought it this would be a good place to ask about this, as there maybe was someone that had experience something similar.

Try a $49 Schiit Sys as you can send it back

But at the moment you would have so much distortions/noise because your shunting >90% of the dacs signal down to ground, only then the re-amplify it again noise/distortion and all.
Cheers George

Went on EBay and bought 1 pair of each (Harrison Labs and Rothwell) looking forward to try them out.

I had same problem with a Bruce Moore preamp with Goldpoint step volume control. Each click was to much gain, either to loud or not loud enough. I couldn't go past 8:00 or 8:30. My suggestion may not help but but I'll give it a shot. I had Goldpoint suggest a couple resistors to put on the volume pot and and after I installed them I could go to 1:00. It was a very easy solder job. Maybe you could install a new volume pot with more steps but that may be to drastic. Why is millercarbon so mean?

Essentially the attenuators are resistors that will decrease sound pressure levels.  They come in various values i.e. 4, 6,10 db of reduction even higher values are available . @gryphongryp the Supratek seems to provide a lot of positive attributes in your system. No wonder you want to retain it. Just curious if you've tried a passive in your system for comparison?  
Charles