Amp recommendation for Vandersteen Treo CT

   I have a pair of Vandersteen Treo CT speakers and looking for amp that goes with it. My budget is around 3k. I used to power them with Luxman L-509X and it was really good. I really do not want to spend 9k for another AMP and wanted to try a less expensive one. Any suggestions would be much appreciated.

Take a look at the Kinki EX-M1 under your maximum price and at 200/400 wpc more than enough power for the Treo CT's.  I have used mine with Nola K.O.'s, Verity Otello's and Reynaud Abscissa Jubilee's and it sounds superb with all of them. 
The Treo’s are really nice speakers, one of the few I would consider replacing my Magnepans with (previously have owned 3A Sigs). As you are looking at integrated amps, and I don’t keep track of them, I won’t make a specific suggestion. That said, I will note the Treo’s are pretty inefficient at 82.5db/w, but an easy load not going below 5.5 ohms and no high phase angles. As such, you should target integrated amps with at least 100 watts per channel (100 watts will get you about 97db before clipping; if you listen at loud levels, more would be necessary).

As you already have PS Audio, have you considered the S300 amp? You could combine it with a Schiit Freya S preamp for $2,200 for a very transparent combination that takes up no more room than an integrated and runs cool.
@mcreyn       I really like PS Audio. All my gears in my listening room is all PS audio. BHK mono block, BHK pre-amp, DirectStream DAC and PS audio P10. I wanted try different option for my other room. Luxman was amazing but expensive. I'm seriously considering going back with Luxman L-505uXII.  Expensive than my current price range but I'm pretty sure I'll be happy with it. Lot of thinking to do over the weekend.
If you are considering increasing your budget, then you should seriously consider Ayre. Belles, too.
+2, for Rogue Pharaoh.  Another excellent choice would be Naim Uniti Atom. Also Belles.