It's possible to adjust the sensitivity for each pad in the TD-1. Here's how:
1. Press the SELECT button until the DRUMS indicator is lit.
2. Press and hold the Metronome button until the DRUMS indicator begins flashing, then release it.
3. Hit the pad that you want to set the sensitivity for.
4. Press the + or - button to adjust the sensitivity (1-32). Increasing the value makes the pad more sensitive.
5. Repeat Steps 3 and 4 for any other pads as desired.
6. Press and release the Metronome button when you're finished. The new settings are saved automatically.