None of the travel docks have any bass output. To move air (as you do for bass output) you need a larger driver. Klipsch make that lovely Zeppelin thingy, but it’s loads of money. Bose do a great unit, but still loadsa money.
I bought a Creative i500 which is a decent size, takes batteries as well as running on mains and comes with a remote control. It is aesthetically pleasing and has a discreet slot to make carrying a one handed affair. Plenty of bass with a good overal sound. There’s a bass volume control if it gets too boomy, video output with lead and also a 3.5mm audio jack in (for your mate’s players whatever make they are). I got mine for £75 on a discount, but they are now £99 on Amazon.