I have run some Hsu HB-1s and some Behringer 2031p monitors with the HK 3490, both were terrific. If you aren't going to use a subwoofer, either are ideal since they both have pretty good bass for bookshelf speakers, we are talking very good output down to 60 hz. I think the Behringers were a bit more detailed, but if you wanted to run the speakers at louder volumes, I think I would trust the Hsu speakers more, since I have blasted them so hard, and they have rocked high volumes like a champ. Also, they can run with any receiver which furthers their usefulness, whereas the 4 ohm Behringers would work with the HK 3490, but I wouldn't run that load on any entry or mid level receiver. Still, I think you would be very pleased with either speaker.