from what i have seen a 6dB range is tolerable, a 10dB range is fantastic, more range then that has me running for the volume control constantly, once you get to about 3dB things begin sounding like a jumbled mess. i understand they do this so that it can be played back on crappy systems, but the thing is the coldplay song i tested sounds fine on the POS in ceiling speakers at my workplace. not to mention, if someone is going to buy a cheapo single driver boombox, they probably dont give a damn how it sounds.