Picture Touche Amore with some more complicated musicianship, an even vocal mix and some extra chaos; then you'll start to get an idea of Calculator's sound. There are some elements that come off as accessible and easy, but Calculator can change gears pretty quickly, delivering something all together foreign and interesting.
Straddling a line between modern and mid 90's, the sound here has a little something that I think will most likely have some mass appeal. The strained scream keeps the vocals coherent, anchoring the sometimes frantic guitar work in. These guys have some chops on their instruments and know how to work it all in without sounding too showy.
All in all, a nice presentation., listen to it here.