Earphones / Headphones: Where to try, what to buy?

(cross-posting from the bluetooth speakers thread as I thought this one is far more active..)

Recommendations please!
Looking for a portable speaker.

Most important:

• should have great, natural, big sound. By "big" I don't necessarily mean "boomy" / "subwoofery".
  
• will be used indoors mostly, does not need to be that portable, nor waterproof
  
• does not need to have a lot of features / wicked smartphone app / link features etc.
  
• bluetooth will be useful, thugh this will likely just be used with aux-in by cable
  
  

I see the UE boom things and a lot of JBL Clip / Flip/ Charge models around town, and I am often impressed (read: annoyed) at how freaking loud they are - though I think they have exactly this sort-of subwoofery / boorish sound that I don't like.

This will be used in a ~30m² room most of the time, and it should provide a good, honest sound - including bass frequencies.
Needs to be "loud enough", but not screaming loud.

Have looked at a lot of reviews and so far the "DOCKIN D FINE" seems to be a good choice.
Does anybody use this ?
Does anyone have other recommendations?

Thanks!