According to your system page you already own Kef Cresta 2s, which cost you $250.
In my opinion spending $300 for an upgrade will not be worthwhile. Every time you trade gear you lose money, so it makes sense to make bigger steps up the hifi ladder. To upgrade from a $250 speaker I'd be looking at a budget of $500+, as it will cost you less in the long run if you buy something that you can live wit hfor 10 years or more.
Also soundstaging and imaging are extremely dependant on placement, and usually require the speakers to be well away from walls (both side and rear). Even expensive monitors, when placed close to the rear and/or side walls, can fail to do any imaging.
In my opinion spending $300 for an upgrade will not be worthwhile. Every time you trade gear you lose money, so it makes sense to make bigger steps up the hifi ladder. To upgrade from a $250 speaker I'd be looking at a budget of $500+, as it will cost you less in the long run if you buy something that you can live wit hfor 10 years or more.
Also soundstaging and imaging are extremely dependant on placement, and usually require the speakers to be well away from walls (both side and rear). Even expensive monitors, when placed close to the rear and/or side walls, can fail to do any imaging.