The drums do not have a separate, global EQ, however, you can go into individual styles and EQ various aspects of the style, including the drums, then save the information either to a custom style, or to a registration, whichever you prefer.

If I recall correctly, the S910 added a drum kit or two, and the drums do seem a bit hotter than those on the PSR-3000 and S-900. You can also tune the keyboard's 5-band, global EQ and set certain frequencies that will enhance sounds in the drum's frequency range, but it will also have some effect on other instruments (voices) within that same frequency range.

Hope this helps,

Gary