In terms of traditional passives , Magico’s actually measure pretty well, KEF Blades probably are even better and there is a US brand that sell direct they have a Klippel NFS someone here will know whom I mean.what is the most transparent loudspeaker transducer one can purchase in these 3 price points ?
1) $ 1000
2) $ 10,000
3) $ 100000
There would be measurement led designs.
Contemporary actives are better still of course.
Keith