SF Extrema,Few q

I was "blown away" by my listening to the Extremas,but the owner had added a superb super tweeter to them.We a/b'd these,and the Sonus "classic's" moved into another league with them.The original Extrema is a fine design,but is a bit rolled off in the highs.Easily remedied!
We are all bombarded,today,by marketing!!In all areas.We are almost brain washed by the approach that we should get the newest,or latest.Keep buying and buying!
Every aspect of almost any hobby contains this element!Many foolish hobbyists take it too seriously,and IMO,this hurts our real chances of attaining great sound.
I know of two specific people who are SO enamored with the latest audio toys,that they never take the time to "voice" their set-ups properly!They sell their stuff too quickly.
I have another well experienced group,who base everything on sound alone,and MUST live with something long enough to get the "most" from it,before moving on.Who do you think have more musical systems?
Sorry for the rant!

Back to the Extremas...I LOVE them(don't own them,but appreciate greatness).To my ear,and eye,they can be considered as good as I have heard(and I live in the New York area,and have heard it all,almost)based on room size(very important).They are SO well made,and are so beautiful,and different looking(in the best way)that I doubt if these cannot be serviced,even if the drivers were not continued by Sonus Faber.The woodwork alone is enough to be displayed in a museum.You cannot get a sense of how "distinct looking" they are by a picture!!
This has become a small world,with the web,and all.There are many people who do admirable work on speakers,and electronics.Many Modify companies too.Some better than others,but I don't think "anything" is a dead issue in this modern time.Almost anything is available.
The speakers are a "magnificent,one of a kind looking" design,that still easily holds up to the competition,with the addition of a super-tweeter,which MUST be added to stay competitive!Go for them,and enjoy music through them!You won't be sorry!If you are,then give them to me!!-:)
Best!

Here's what I can tell you about the Extremas.
The Extremas having no capacitors in their crossover and require some hefty amplification.
I wouldn't use any Tube amps or Class D amps.
Alot of the Class D amps are very small.
The Extremas use a unique Skanning midrange.
Skanning makes only Polyprolene midbases and woofers.
The Skanning 7 1/2 midbase woofer on the Extremas is a Polypropelene driver with Carbon Fiber.
The Carbon Fiber part of the midbase driver is made by Sonus Faber, not Skanning.
The Carbon Fiber made by Sonus Faber for the Extremas uses the best material.
This Carbon Fiber when combined with the Skanning Polyprolene driver has a sound that has to be heard to be believed.
The speakers sound so rich and transparent with soundstaging that is so holographic.
The bass is fast and tight.
A great amp on the Extremas is the Meridian 557 amps bridged.
Used these amps probably cost like 1000 each.
This is what my friend is using.
The 557 amps bridged are like 800 watts.
One 557 amp couldn't power the Extremas.
My friend and I tried it.
But when you use 2 Meridian 557 amps bridged.
Holy Moly did these speakers sound incredible.
It was night and day when you bridge them compared to using 1 557 amp.
1 557 amp just wasn't powerful enough.
I also agree about the Audio Research D400 amp.

The amps I heard were the new Bernings!Wonderful.

have u heard hyepx DIY amps?do u think it can be good match

I have heard hypex amps made out of the mid-powered modules (not driving the extrema). They were OK. I've never heard any hypex driving Extrema.

You need a very stable amplifier with a lot of output (see Twilo above). I used YBA and Symphonic Line -- which are expensive so, not recommended.

Any hi-powered amp should do in the beginning... what's the output of those Behringers?

Thabx Twilo:

I heard that a pair Meridian 557 (bridged) can be a good match whith Extrema.But I want something ligheter(in weight and money)
can u please explain why u think Class D amp isn't a good chooice for the extrema?
U wrote they small but there are very powerful moudle out there ,for exmaple Gregm mentioned Hypex,the 400AD module is very powerful - 400 RMS into 4ohm.
About the PRE - Do u think tube pre amp will be good?
Any recommendations?not expenssive one cause most of my budget goes for the Extrema.

Thanx U all