I love my Bose QC 15's, but man, I can't stand the sound character of the little Bose speakers, regardless of which model. heard them all and don't like them. to me, they have no high end. I do like the very expensive unit (about $500-600 IIRC) and I forget what it is called. it might be discontinued. that sucker is(was) awesome. the price is NOT.
The large Jambox, for me, is far too bass heavy. My original Jambox also isn't very accurate, but works OK with a lousy-sounding Macbook Pro (my wife's--you couldn't pay me to use a Mac) for when she watches news or movies on it.