Ayre VX-5 Twenty vs. Pass X 250.8

Hello. I´m in the market for either the above mentionned Ayre or the Pass stereo power amp. Does anyone ever compared both power amps (or their bigger siblings VX-R Twenty and X 350.8) ?

As a front end I use the brand new Ayon CD-35 Signature version acting as a CD/SACD/DAC/Tube Pre-amp. I as well have a Merging NADAC directly connected to my Asus Laptop. Speakers are TAD CE 1. All cabelling is upper line Siltech (Double Crown) or Nordost (Valhalla 2).

Thx for any usefull input from your side.