What Pro version are you referring to? There will be a RAWPRO-DAC1, RAWPRO-DAC1N, and RAWPRO-AMP1. But none of them are RAWPRO-MDA1. I'm really curious because I'm thinking of buying the RAW-MDA1, but I wanted these popping noises to be fixed, or at least that I could fix them on my OS (Linux)...