Kef Blades (1), being auditioned...please share your experience.

I am auditioning the Blades in my home. Aside from placement issues, I find a consistent anomaly in the low mid band frequencies and upper base frequencies. It is most recognizable in male vocals, for example, Gregory Porter. There is a crossover point where the voicing goes from warmish to just a bit thin with "edgy" overtones. Female vocals are stunning. Does anyone have any insight/experience that might help. This is consistent with CD, server, and vinyl sources.  It is also consistent with most male voices.  Your feedback is most welcome.