My roon setup is core and endpoint in one music server.
I would like to try the roon dsp volume control, just because I am curious 
My speakers are 96db and my amp 300w, so I need to set a safe limit before I connect my dac to my amp.
Playing very load is around 30 on my pre-amp. Around 15 is my preferred level
Speakers Tekton Double Impact
Dac Holo Audio May KTE
Amp PS Audio BHK 250
pre PS Audio BHK Signature
Connection XLR balanced