the arros are an amazing little speaker and have quite a bit of bass for such a small speaker. i used them in a 12 x 12 ft den with great success. the arros allow placing closer to the back wall than other totem speakers which then provides a little deeper bass. the only reason i don't have them anymore is i traded up for totem mani 2's. as for the hawks, these are a more full range speaker that will be able to play louder with a more fuller sound than the arros. if you like loud rock, rap, or heavy metal music, go for the hawks. if you like jazz, new age, at moderate volume, you could go with either with much success.
good luck
good luck