Midbass

[///M5 2,833]

Again what I don't understand is if they are in the same location why not just have your sub play the midbass as well? As long as it is capable it has more cone area than the 8 you are thinking of using and therefore will do a better job. Having midbass in the back really doesn't work for me at all, but if that stage killer doesn't bother you then there is no reason not to have the sub do the duty.

I do not believe that the hdc3 would play midbass frequencies with any glory. Also, to my knowledge, midbass frequencies exceed 250 hz which is the maximum LPF I can set on my amplifier. Does this mean that I would lose all frequencies above 250hz?

The hd3 doesn't play anything with glory so no surprise there. You would only lose above the LPF on the channels that you set the LPF to.