So I tried this for giggles a few weeks ago. I wondered what would happen if I used Roon's digital volume control, which in theory is pretty good because it uses 64 bits for DSP processing, and went directly in the LM805 pre-in via my Lampizator DAC, which is set to a pretty standard 2V output. Way too quiet as expected. I then tried going into a regular input with the volume maxed and while I had enough gain, there was simply WAY too much noise coming from my DAC. This surprised me somewhat at first. It does seem like Lampizator tube DAC's produce a fair bit of noise when their output circuit is not 'muted' and nothing is playing. Regardless, combined with the LM input sensitivity of 300mv on the regular inputs (and 1000mv on the pre-in) there isn't much room for a clean signal. So aside from my newfound concerns about the SNR of my Lampi DAC, I don't really understand why LM (or any integrated amp) would design such low input sensitivities. Wouldn't it make sense to design an input with 2V sensitivity to match most source outputs and so the volume pot's full range could be utilized in a standard use case?? If anyone could offer insight it would be much appreciated! As it stands, I have useable range on my LM805 pot of between 8pm and 11pm. 9pm is casual listening, 10pm starts rocking, and 11pm is too much most of the time. And this is with 6db digital attenuation for some minimal DSP/PEQ processing I am doing in Roon. Without the headroom adjustment in Roon, I think my useable range is only up to 10pm. Is the pot attenuation linear? With a standard 2V source and a 300mv input, maybe it's reasonable to only expect max volume at 10 or 11 pm? (Note that when I performed above tests I did disable digital attenuation). So now I had this brief idea that I should try some Rothwell or Harrison RCA attenuators. I don't have issues controlling the volume per se, but wonder if the sound quality would improve if the pot was being used between say 10pm and 3pm instead of 8pm and 11pm ..? Or maybe any gains there would be offset by the RCA attenuators degrading the signal (apparently at the frequency extremes?).