Goldenear triton replacements

You are going to lose some depth in the bass for sure without the powered subs. 
In that price range I think used Revel 208s or new 206 are worth looking at. Kef R5 or used R7 would be another one. I prefer the revels over the Kefs for a more integrated natural sound. 
B&W lower models are under-performers imo. I have owned the 703s a long time ago and would not recommend them.  

Ohm Walsh ?
dynaudio

GE Triton Reference speakers.  Bass is much, much better and much more defined and articulate.  You have the least expensive GE powered speakers, there is no comparison between the 3+ and the Triton Reference. 

I've heard them at my local dealer but unfortunately they're out of my price range, I normally buy used and got a great deal on the 3+ speakers