Simaudio W-5 or Odyssey for Dynaudio Contour S3.4

Hello, I've recently upgraded from Dynaudio Focus 160 monitors to Contour S3.4s. My listening space moved to a much larger room in the house so I'm in the process of systematically upgrading my system. I'm trying to stick to a budget so I'm looking at used equipment to get the most 'bang for the buck'. My amp budget is $1500 - $2k max. I've been searching the forums looking at past posts for amps that pair well with Dynaudio and the Contour line. Some are out of my price range (Plinius, Krell) but I've come across few options within budget and I'm looking for a little guidance from those who may have experience with Simaudio Moon W-5 or Odyssey Stratos - either stereo or dual mono amp. 

I listen to Jazz, female vocals, Classic Rock and more contemporary rock, some EDM/Electronic. I like broad deep sound stage, lush mids and vocals. Controlled bass is appreciated but I don't need the ultimate in "slam". I'm currently running a Yamaha MX-1000 with Nakamich CA-5 Preamp. The Yamaha has power, grip, brute force but it lacks musicality. I have a backup Luxman r-117 receiver which I've tried as well. It has a broader sound stage and more musical presentation to my ears but lacks the power of the Yamaha. I'd like to get the best of both if possible.   

The remainder of the systems consists of Rega Apollo CD, Rega P3 (Ortofon blue), and Nakamichi CA-5 preamp. *the preamp is most likely the next component I look to upgrade.

Thanks in advance for any guidance you all can provide.