With your edit...
your ears will be crying sooner than not with the higher SPL... but the infrasonic impact at 95dB will be much stronger than the 40Hz signal at 115.
Now, if the science is correct that our hearing low frequencies becomes more sensitive as the SPL increases, then as that infrasonic frequency increases, not only will the tactile impact increase, but the likelihood of hearing the closest harmonic increases as well thus improving the audible sensation with it.
(Or, at least as I understand it some 25years after music school and my lone acoustics course.
)