| Manufacturer | Model | Sensitivity | Long-Period Corner | High-Frequency Corner | RESP Filename | Comments |
| Chaparral | 21 | 0.4 | 10 | 200 | RESP.XX.IS027..BDF.21_SG0.4_LP10_HF200_STairPressure | Chaparral |
| Chaparral | 21 | 2 | 10 | 200 | RESP.XX.IS028..BDF.21_SG2_LP10_HF200_STairPressure | Chaparral |
Updated 07/27/2023