It's possible to adjust the snare X-stick (Crosstick) volume in the TD-4KP. Use the following steps to do so.

1. Press the MENU button. 

2. Press the SEL down button to choose "MIXER."

3. Press OK. 

4. Press SEL down to choose "X-STICK VOLUME."

5. Turn the -/+ value dial to adjust volume - (OFF, 1-3). 

6. When you're finished, press MENU to exit. The new setting is saved  automatically.