@oddiofyl, if you like the RME sound I think you will like the M3 sound. I've owned the RME ADI-2 DAC FS and Bricasti M3 and thought the RME was cut along the same lines sonically speaking. It reminded me very much of the M3; I found the M3 to offer better dynamics and a little more resolution and separation, but overall I found them to sound more similar than not and both were very easy to listen to without being forward or analytical. I never tried the RME as a preamp but the M3 as a preamp to my Pass Labs amp was very good. In the end I've sold both to go with an NOS R2R DAC and sound, but both were excellent in my view. The RME I think is a killer DAC for the price and truly made me wonder how much money is justified for a good DAC.
Cheers