[. . . ] [. . . ] 0 O 0 O O 20 10 dB Omni-directional 60 O 30 O 30 60 O 90 O 0 -10 -2020 dB -30 -20 90 O Low cut 50 100 200 500 1k 2k 5k 10k 20k 120 O 120 -10 150 O O O 0 150 180 O O 180 250 Hz 500 Hz 1K Hz 2K Hz 4K Hz 8K Hz 16K Hz 20 dB Cardioid 60 O 0 30 O O 0 O O 30 60 O 10 0 -10 -2020 90 O dB -30 -20 90 O Low cut 50 100 200 500 1k 2k 5k 10k 20k 120 O 120 -10 150 O O O 0 150 180 O O 180 250 Hz 500 Hz 1K Hz 2K Hz 4K Hz 8K Hz 16K Hz [. . . ] [. . . ]