okay, so im trying to sell my 4 channel amp so i can upgrade it to go along with the Hertz HSK 165's which need about 250 watts to push them. I am trying to grab two sets of the speaker so in total i will have four sets. what would be a good amp to match with these? I went to an audio dealer and they had them running off an ARC 5080, which was hardly pushing them. I like the ARC amps but if there is something that is the same quality for a better cost thats what i would like to get.