To sing bass louder, focus on a few key techniques. Start by improving breath control, as deep breathing supports powerful sound projection. Work on your vocal resonance by engaging the chest and diaphragm muscles, allowing for more volume. Another crucial tip is maintaining proper posture; standing tall aligns the body and opens the airways, making it easier to produce a stronger, deeper voice. Practice consistently with vocal exercises tailored for bass singers, and pay attention to relaxation—tension in the neck or throat can stifle sound. With regular practice, you can significantly increase your bass volume and achieve a fuller, more resonant voice.