I have a ton of Beach Boy aiff's I used dBpoweramp to create them from flac files.I have a MacBook Pro 2013, WD external HD with all music on it in place of having it on Mac Book, ifi nano DAC, B&K pre and Power amp's 225w rms. and Paradigm Studio 100v.3 biwired speakers. Musclink Transparent interface cables. Most of my aiff's sound great but the Beach Boy stuff even if I increase the gain the dynamic range is no where close to most of my other music. Is there a software that I could use. I have many to work thru.