Thanks for sharing. I would say you are fortunate regarding your noise floor with the Brio. When I contacted Rega, the higher noise floor was a known issue due to the compact size of unit and the only fix was to send the unit to an authorized dealer to perform an adjustment. The adjustment was said to reduce the noise floor but also reduce sound quality as I believe they said they would be reducing the bias.
I want to hear the NAD D3045 in my system. I have the NAD D3020 V2 in my family room. It was chosen for its size, looks, and features, but it is very meaty sounding and avoids the typical pitfalls of Class D amps under $1000.