Seeking Advice on Amp/Preamp or Integrated for Thiel PCS speakers


I know it all comes down to personal preference and I definitely need to try to hear the amps before I buy BUT I am looking for suggestions on amplification for a pair of Thiel PCS (87 dB, 4 ohms), which I recently purchased.  

I've been looking at the Rogue Audio Sphinx integrated, which has a lot of positive reviews. But I used to own a Threshold amp, which I really liked, and am thinking of getting another one and maybe pairing it with a tube preamp. Or maybe a NAD integrated...

a lot of options so just looking for advice to see if I'm on the right track or should be considering other options.


matthewva
This is really helpful, thank you.  Should have read that stereophile review closer to pick that up!

I used to own a S/150 but sold it long ago.
Would have been a good amp, if in top electronic condition.

Cheers George 
I use a Coda CSiB integrated to drive the pcs with excellent result.
Coda founded by Eric Lauchli, B.D. Dale and Lorin Peterson, former staff of Threshold.
David_ten, I was actually thinking of a Krell KSA-50S, if I go the separates route and can find one.