Best small, desktop speakers, $500 or under (new or used)


What small, nearfield (3 feet) desktop speakers do you use or like?
I'm looking to fit out my desk with something good but not expensive.
Music tastes are varied and I don't care about deep bass. I'd rather have good mids, highs.
Spending is capped at $500 max. Open to used, new. Would power these with Adcom separates, 60wpc.
Elac? Ascend? KEF? What would you advise?

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I’ve been very happy with a PSB Alpha PS1 speaker system. I have the option small matching sub and as a whole it’s surprisingly good with great dispersion. Nicely made small and very good sound. Speakers are list $299 usd. SubSeries 100 matching sub is $249. I’ve used them with out the sub and they are very nice too 
I’m running the kef ls50s off Class D near field in the room below where the Vanatoo are and agree 100%.  Listening as I type.  
JohnBlue jb3 - Nice sounding single driver speaker designed for desktop, or standmount, listening. Great for nearfield listening. I used to see them mentioned here occasionally, but haven't in a while. I don't know if they have any US dealers. I bought mine several years ago  directly from JohnBlue in Taiwan. I just clicked on the "Contact us" button on their website.