Harbeth P3ESR seems like a popular warm option.
The P3ESR is warmer than your SCM7 and outstanding for nearfield, jazz, and vocals that you mentioned. They are also the same size as the SCM7 and can be a direct replacement on your desk. However it has the same amount of bass, and for more you would need to go larger. What are your size constraints?
Would you consider a subwoofer? I have excellent results with my P3ESR-XD and REL subwoofer in a nearfield desktop system. You could start by trying a subwoofer with your SCM7s.