yes, the sh-5 is quite aggressive and compressed
the ceramic nailbomb has a somewhat similar voicing, but it's punchier and a lot clearer
if you still feel that it's still lacking low end, get it closer to strings (which is impossible with the sh-5, as it gets very muddy quickly)
I'd still take the miracle man for a slightly bigger bass, better clarity and harmonics
the nailbomb sounds a little more aggressive, though