Good Speakers with Pass XA30.5 Power Amp?


I'm currently using a Pass XA30.5 power amp (with Pass XP-10 preamp) to drive a pair of PSB Synchrony One. Cabling is all Wireworld Equinox 7 and room is about 12'(W) x 24'(L) x 12'(H) with speakers firing down the long dimension - although I can only sit about 7' from the plane of the speakers. I find the sound somewhat laid-back, i.e., lacking in liveliness and I'm constantly fussing over the sound of the system. I listen at very moderate levels to a wide variety of music, but typically jazz (vocals), classical and choral music - with the occasional reggae and pop fare.

It's been suggested to me that the combination of the Pass XA30.5 and Synchrony One may not be a good match so I'm soliciting suggestions for speakers that should work better with the Pass amp - i.e., a more lively presentation. I'd prefer full-range speakers at least the equal of the Synchrony One in resolution and frequency extension. My budget is less than $4k used.
partialresponse
Is anyone using (or has heard) this amp with Acoustic Zen Adagios? Will these be markedly different from (more lively than) the PSB Synchrony One?

I believe I saw SV II for sale on audiogon from SIngapore, offered at 3600 USD. Its a great value at that price IMO. 
I'm sure it would cost quite a bit to get a pair of those speakers shipped to the US from Singapore ...
When I approached him about a year ago, he offered me to ship it free of cost from Singapore to India. At that time it was listed at 4500 though. I finally bought my pair from Tom (audioloft in NY). 
<<ELAC dealer disclaimer>>
When the Elac Adante AF 61 is released in two months it will most likely compete with all speakers under $10k.  It's going to be a very special speaker.  Andrew Jones is a VERY clever guy.  :-)

First, do my 2' listening test.

Bring the speakers out into the room and sit about 2' away. This will reveal the actual tonality of the speakers. The difference between that and your normal experience is room acoustics.

Best,

E