I somewhat agree with you about the lack of midbass in the Hertz Speakers. Then again im running a SAZ 100.4 on them so im at half the power. However I did deaden my door, and I sealed it up as much as possible. They are better than my previous MB Quart hsk-135 i think they were which midbass was non existent, but I agree with you that for what we read of these speakers we should of expected a bit more midbass. I did turn down the tweeter gain on the crossovers, and that helped a bit. Im still happy with these speakers none the less.
Im subscribing to this so keep us informed on how things turn out.