From Audio Note AN/J-D to where?

Ideally, open baffle speakers would be placed with a lot of room behind the speaker and some room to the side-four feet from the back wall and something like two feet or more from the side wall to the edge of the baffle.  But, I've heard them in small rooms closer to walls than this, and I still think they sound terrific.  Again, I reiterate that the German PureAudioProject speakers are a bargain and sound very good.  They have many options for the midrange/high frequency driver. Since you appear to be willing to spend more than your initially mentioned price, you could easily get a PureAudioProject open baffle with the Voxativ fieldcoil driver option and this is an extraordinary system.  For $30k dollars in the USA, one can get the open baffle speaker from the Portugese company Cinnamon Audio; it might be cheaper in Europe and it is killer good.

I am a BIG fan of the Charney Audio back loaded horn "Companion" speaker.  It comes with various choices for the single driver used in the system.  I've heard the Voxativ and AER options and both sound terrific (I like the AER slightly more).  This speaker can be used close to the walls so it would be a fantastic choice.  But, it is hard to audition here in the USA and I would bet it would be extraordinarily hard to hear in Europe.  

Thanks for all the recommendations. I will try to study each and everyone of them carefully.

The easy and most obvious choice will be the AN-E SPe/HE. I like their natural tone and I also like their classic, sophisticated designs. It might sound silly but for me I also appreciate that speakers are nice to look at and have in your room. 

My point with Audio Note is that they offer high quality, high-end speakers. It appears though that AlNiCo and Field Coil versions are quite expensive and it may be possible to reach to the same level/quality by looking into smaller brands that aren't as popular as Audio Note. 

I have been studying Swissonor B.A.C.H. 12D, a 2-way coaxial and coplanar loudspeaker with Tractrix-horn. I must get to know more about the whole technical aspect since I can't say what a 2-way coaxial solution with bring and how the Tractrix horn is great (or not). 

Avantgarde has a dealer in København.

@apollinaire 

I had the AN/ J LX Hemp speakers for a while and really liked them but they were occasionally sibilant in the treble and while the midrange was nice it seemed to be a bit recessed that I would prefer.  

After much thought I purchased the Spendor D7.2 speakers and have had them for almost (3) years.  The Spendors are wonderful sounding speakers with appropriate bass and warmth, openly transparent midrange and the treble is smooth, delicate and easily enjoyable.  The star of the show however is soundstage and dynamics.  They are quick and nimble to the point of dynamically separating differences in transient response and attack as well as separating the musical elements clearly.  The sound stage is quite large and multi dimensional and the music has a kaleidescope effect where different sounds jump out like fireworks displays.  

They are 90db efficient and worked well with my push pull tube amp.  The D7.2 or even the D9.2 are worthy of consideration.  Not the last word in audiophile bling and status but Spendor is a company that really know what they are doing and you can hear it.  

Good luck with your process! 

@apollinaire You might consider the DeVore Fidelity O96 which is very easy to drive with lower powered tube amps but has wider bandwidth.