Currently, many companies create ADC with an enormeous dynamic range (120 db or more). However, the practical dynamic range of a microphone can be 94db (SPL). This means -26 in digital full scale (dbfs) of a DAW (Cubase, Pro Tools and so on) . Also, according some papers, a dymamic range of 96db ( CD quality ) is enough to record music, if you mix and process the audio tracks with a resolution of 24 or 32bits before the final format (16 bits CD).
Is there a real advantage in using a new audio interface (ADC 120db or more) instead an old interface ( ADC 105db) when I record with condenser microphones? ( For example: recording classical music).