Not an acoustic expert, but just looking at the graph: at 1KHz the boost is 92.5 to 95dB, ie 2.5dB, but at 100Hz its 97.5 to 103dB, so a boost of around 5.5dB, and at 60Hz you're getting over 5dB boost. So yes, you do a boost all over, but it does seem to be greater in the bass end.
Please correct me if I'm missing something.
** Corrected to 5dB - Thanks Barkin!