-20.4 dB (63 Hz)., -19.9 dB (125 Hz)., -25.8 dB (250 Hz)., -30.9 dB (500 Hz)., -34.2 dB (1000 Hz)., -37.4 dB (2000 Hz)., -34.8 dB (4000 Hz)., -62.2 dB (8000 Hz).
-20.4 dB (63 Hz)., -19.9 dB (125 Hz)., -25.8 dB (250 Hz)., -30.9 dB (500 Hz)., -34.2 dB (1000 Hz)., -37.4 dB (2000 Hz)., -34.8 dB (4000 Hz)., -62.2 dB (8000 Hz).
-20.4 dB (63 Hz)., -19.9 dB (125 Hz)., -25.8 dB (250 Hz)., -30.9 dB (500 Hz)., -34.2 dB (1000 Hz)., -37.4 dB (2000 Hz)., -34.8 dB (4000 Hz)., -62.2 dB (8000 Hz).