Marshall Stanmore VS JBL Charge 2
Stanmore is able to output a lot more volume. Notice, that Stanmore allows also treble and bass adjustments. Settings were in the middle for the comparison.
Songs are:
The Mieli Sairaala - Arkangel's Dark Angel
Joel Kalsi Nordlicht - Within each of us (Jole rmx)
Those are from http://www.mikseri.net/music/