I'm no audiophile expert but from what I understand, it is 'ideal' to have identical speakers/drivers for the 3 front channels.--and I'm not saying that it is not possible to have correctly timbre matched system otherwise--but, if this is the case, would it be feasable to use, let's say for example, in a epic 80 system, an MT80 for the center channel(vertical placement)--placement issues aside, wouldn't this be the best setup-or are there other issues to consider here.