I use my T1's for metal as they have more than enough bass. Plus the more forward midrange makes the guitars and vocals shine.
Something must be wrong with your pair as my T1 has more bass than the SR-225i, and certainly more then a SR-325is. I can't understand how your pair can sound so different.
I did some comparing, Björk's Hyperballad and random DnB internet stream. I have also Genelec 8040 speakers to compare and IMO both the 225 and the speakers had more punch and oomph than the T1. Not by much but I'm missing the feeling. This is so weird to say something doesn't have enough bass since my friends think I'm allergic to it but there seems to always be the first time for everything.