It's possible to adjust the overall volume in each Kit in the TD-15. This level adjusts the volume levels of the pads and the effects as a whole.
1. Press MENU.
2. Press F1(INST).
3. Press F3(KIT VOL).
4. Cursor to highlight the current Kit Volume value.
5. Turn the dial to adjust the level (0-100).
6. Press EXIT when you're finished. The new settings are saved in the Kit automatically.