ummm..if you have the volume on 30 i would probably think you are already completely deaf or your device is defective....i keep my volume between 13-14 for a maximum punch and about 15-16 maybe while i'm in the car....for the bass part maybe your equalizer settings are a bit off...try this setting which is what i use cb+3, 0, -1, +1, +2, +3.....I found this the perfect balance for me with an amazing bass punch.