1. Hit the drum harder. This is the most obvious way to increase the amplitude of a drum. The harder you hit the drum, the more energy you will transfer to the drumhead, and the louder the sound will be.

2. Use a heavier drumstick. A heavier drumstick will also transfer more energy to the drumhead, resulting in a louder sound.

3. Tighten the drumhead. A tighter drumhead will produce a higher pitch and a louder sound.

4. Use a larger drum. A larger drum will have a larger surface area, which will allow it to move more air and produce a louder sound.

5. Place the drum in a resonant environment. A resonant environment will amplify the sound of the drum. For example, placing the drum in a corner of a room will cause the sound to bounce off the walls and create a louder sound.

6. Use a drum amplifier. A drum amplifier can be used to amplify the sound of the drum even further. Drum amplifiers come in a variety of sizes and shapes, so you can choose one that best suits your needs.

By following these tips, you can increase the amplitude of your drum and make it louder.