Please save me from an expensive mistake! Sonus Faber Amati Futura longevity concerns...

@donquichotte --

The response by Sonus Faber is disappointing, to say the least. Indeed it could keep me from buying their speakers if I had an initial interest, but we’re not talking about my needs and choices considered.

As it is I understand why you’ve been left in a bit of a quandary here. I suspect the Futura’s won’t need any servicing down the line, at least not for the foreseeable future the next some 15-20 years, but I would investigate into their crossovers. The Stereophile review do state the following on the crossover:

The complex crossover is said to feature "progressive slopes" and is realized with Mundorf Supreme capacitors and Jantzen inductors.

I would be surprised if electrolytic caps had sneaked in here, so that’s likely one thing less to worry about. 

As to their regular use, I wouldn’t hold back giving them a little workout now and then. 

My speakers were built in 1989 (Sterling Acoustics, not Sonus Faber).  I replaced the ferrofluid for the Seas H400 tweeters in 2020.  Fairly easy to do if the tweeters come out, and the voice coil assembly is removable.  The neoprene surrounds on both the Focal kevlar/poly drivers are in perfect condition.  The poly caps, resistors, heptalitz inductors, Kimber Kable, an all connectors are still perfect. The paint looks great, and even the grill cloth is still in one piece on the grill frames.  I’m not familiar with the innards of your speakers, and many things will depend on exactly what they used, but there’s just nothing I’m concerned about on mine at this stage.  

If you want to buy them, then just buy them.  Worrying about what's going to happen in 10-15 years is pointless.  That said, a good rule of thumb for purchasing luxury items is to ask yourself "can I afford to buy two?"  If you can afford one Rolls Royce, then you can afford two Rolls?  Just offering an opinion.

@donquichotte 

 Down the road, this might require replacing the ferrofluid in the tweeters, replacing the rubber surround of the midrange drivers

You should be able to order replacement parts direct. If they ever run out, you could replace them with the newer models assuming the specs are similar. Hopefully it’s a straight fit or minor work.

Personally, I spent my money on getting the right speaker first, subs, then cheap out on the gear until I can get upgraded gear. It saved a lot of money and time experimenting, buying and selling gear at losses.

btw the previous gen Amati sounded beautiful. a little thin on bass but musical elsewhere.

My concerns would be (1,2&3); are these really the speakers that will "elevate" my "listening experience", in my room, with the electronic front end I have running them (especially the power amp). As a listener, do you understand the characteristics of the speakers, and do these characteristics fit with your listening wants, needs and desires? Enjoy! MrD.