Question about ZU speakers

Hi! I´m from Portugal.This is my first post here...
I´m considerind to take the risk and buying the Zu Definition MK1.5. But since there are no Zu delear here in Portugal I want to ear your opinion about them!
My interest on them started after read the review of Mr Ebaen from 6moons. I remember that he compared the Definition with the Avantgarde Duo that he owned...
I listen to the Acantgards (second hand opportunity) last month and I loved the sound. I didn´t bought them only for 2 reasons: the bottom end was not very tight and didn´t integrated very well with the rest of the bandwith and I think I would have space problem with them at my living room (4x7 meter).

So any of the owners here compared the Zu definition with the DUO's?
Do you think the Def Pro are fare better option than the Def MK1.5?
Anyone tested the Druids with 2 subwoofer againts the Definition's? What do you think it would be better?

I need also to buy 2 power amps to drive them. I notice that most Zu owners use yamamoto's and audiopax amps but this brand aren´t available here in Portugal. What you think about pairing them with Bel Canto M300 or Monarchy SM70pro(one Monarchy for each Zu)? My budget for the power amps is around 3000 usd and I´m open to other options...

My other options are B&W 802D and Pioneer S-1EX (with TAD drivers) both amplified with Bel Canto REF1000...Do you think they will beat the Zu's? Anyone eard the Pioner S-1EX?

The rest of my gear is Bel Canto PL-1A (universal player), Tag Mclaren AV32R DP (AV processor), speaker cable Audioquest Vulcano and IC are Acoustic Zen Matrix II.

This speakers/amps are for my AV/stereo system which i´m starting to built. But my primary goal is to have very good stereo reproduction!
Thank you for your help
Best regards
Miguel

PS: sorry if are any mistakes on the text