Never heard of Shahinian, so did a quick search. Holt and Atkinson totally butchered them in Stereophile. Holt did insist they sounded good when he heard them at shows. But couldn't stand them at home in their systems. And not for lack of trying either.
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Gordon says above that he knows these speakers can sound much better than they did in his home. I'm not so sure. Despite their clean sonic quality, I think their tonal balance is idiosyncratic enough that playing around with room placement and ancillary equipment just won't make a difference large enough for them to merit a recommendation.
Read more at https://www.stereophile.com/content/shahinian-diapason-loudspeaker-system-ja-takes-listen#TqrthcOUZh...
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