new to heresys2's. are they a speaker that can be driving hard. i have the klf10's and they rock. but where the heresy's are older,smaller,different kind of speaker/drivers. i dont want to overdrive also. but was wondering just how tough these little guys are.....driving by a marantz 2252-52 watt reciever....somethimes i listen to soft music.like Bach or oldies. then times i get carried away with music like Foghat or zztop kinda stuff. i know if it sounds distorted to lower the volume n stuff like that. but dont want to hurt/damage drivers....any feedback would be great. thanx......rebreg