Thom, I notice you have the xv-1s.
Compared to this cartridge, yes the Kleos is less extended in the upper frequencies. The xv-1 has more upper frequency air, and bass impact. Most other aspects of the Kleos is sota, especially in the midrange and quietness.
Whether or not you or anyone will see this aspect of the Kleos and advantage or disadvantage will depend on the tonal qualities of your sysem I would suspect.
Compared to this cartridge, yes the Kleos is less extended in the upper frequencies. The xv-1 has more upper frequency air, and bass impact. Most other aspects of the Kleos is sota, especially in the midrange and quietness.
Whether or not you or anyone will see this aspect of the Kleos and advantage or disadvantage will depend on the tonal qualities of your sysem I would suspect.