Looks like the SMB2 dips a good 25db @ 5000Hz, going back to -10db at 10KHz, then dropping gradually to -30db at 20KHz. AFAIK your Stax might only drop 15db around 15KHz.  How are kicks & snares comparing for instance ? 

Indeed recreating (time or space-shifting) an existing soundfield seems to me toatlly different from using equipment to modify an existing work.  Audio recording capabilities have well evolved, considering DSD 128x for instance in relation to 16-bit PCM of the late seventies, with very few...