Volume+ 1.7.3 lets you set it even louder. +10 volume +5 bass and put sound on Good Quality. Makes it louder than my evo. Leave off VR stuff and other, also dont run the separate equalize app it makes the sound lower.
current setup: Samsung Galaxy S4 Black with 32gb class 10 SD*root* AND HTC ONE *root*
HTC Sensation w/ 32gb class 10 card ROOTED
evo 4G *root*
mytouch 3g slide *root*
nexus one *root*
iphone 3GS *jailbroke*
mytouch 3g *root*