From 100.5 Appworks:
Bass Booster is a dream music app which professionally optimizes your phone's bass sound effect and improves your audio quality to the best. With our Volume Booster, boosting the bass of your device has never been easier. It is your music equalizer to let you enjoy the best sounds and music. How to Use: Simply use the slider to adjust the desired volume level. Simply rotate the spin button to boost the bass sound effect. Disclaimer: Make sure to use external speakers or headphone. Otherwise the effect might not be stunning.