| Low Frequency (Hz) | Middle Frequency (Hz) | High Frequency (Hz) | Remarks |
| 25, 130 (Fluctuation: Med.) | 350, 1000 (Fluctuation: Small) | 4900, 7500 (Fluctuation: Large) | Bottom 1 (B1) |
| 24,40,125 (Fluctuation: Med.) | 280, 400 (Fluctuation: Med.) | - | Bottom 2 (B2) |
| 55, 150 (Fluctuation: Small) | 800 (Fluctuation: Small) | - | Bottom 3 (B3) |