Very Impressive
Love these kind of apps as an audiophile and the 3D effect blows me away, especially with the bass boost. However, the treble ranges may need some minor tweaking since it sounds a bit tinny at times alongside the bass, who overpowers it and the mid ranges sometimes even with the EQ adjustments. Otherwise, a very impressive app. Bought the effects right away.
FangShock about
Boom: Bass Booster & Equalizer, v1.0.1