Part 1: http://media.bswa.org/sutta_study/Brahmali_2011_03_13.mp3
Part 2: http://media.bswa.org/sutta_study/Brahmali_2011_03_27.mp3
Versions where the ‘silence’ (questions from the floor) are amplified:
Part I: MN036_MahaSaccaka_PartI_2011_03_13_Brahmali.mp3 (24.5 MB)
Part II didn’t seem to have recorded anything in the ‘silence’, however, as the first one-third was rather soft: MN036_MahaSaccaka_PartII_2011_03_27_Brahmali.mp3 (28.3 MB)