Speaker upgrade on latitude e6530 remotely possible?

Has anyone experimented with finding an after-market speaker that goes in the factory location and might offer slightly better sound? I know it's a long shot, but can you do anything with the given space and maybe more money invested into the speaker unit?

 

problem is space is so tight that trying to introduce a different speaker usually is just not physically possible.

I would not say impossible, but improbable

 

It's tight, downward firing, and at least in one of the two speakers case half blocked by something, but I was hoping to get a bit better from it. Unfortunately as a business laptop they don't place the speakers where you might find them on a cheap consumer one (facing you)