Originally Posted by chikoo
IF the Paradigm center channel aims to solve the problem of lobing by keeping the multiple midrange and mid-woofers either next to each other or at extreme ends, then why do other manufacturers do not follow that same process?
That center speaker's design doesn't really explicitly aim to solve any problems. It just completely sidesteps them altogether. And there is no lobing/comb filtering at any relevant frequencies between the woofers in that speaker, so that there are 4 woofers, with 2 next to one another, on each end, is not really relevant.
The lobing/comb filtering that is of concern with horizontal speakers is that which is occurring in the critical midrange frequencies. Center channel speakers reproduce dialog. And the midrange frequencies are particularly important for that dialog's intelligibility.
If the midrange frequencies in a horizontal speaker are produced by a single, dedicated midrange driver (i.e. a 3-way speaker), then no lobing/comb filtering can occur in the midrange frequencies. Right? And, even if there are two separate midrange drivers, as in the speaker pictured, as long as they are close enough together, then the lobing/comb filtering that might occur between them is negligible. But, as you may have noticed, Paradigm's current 3-way (or more?) center channel speaker offerings only have a single midrange driver.
The reason so many horizontal center channel speakers are 2-way MTMs is probably because that is the cheapest and most practical route for many manufacturers (and consumers, btw). And even though the horizontal design is more easily accommodated than a vertical speaker in the center spot by most people, not everyone can accommodate a LARGE speaker like the one you pictured in their center spot. Many people don't just require a horizontal speaker in the center spot, but they require a SMALL horizontal speaker in their center spot.
There are still ways to minimize or alleviate the midrange lobing/comb filtering that occurs in a standard 2-way MTM as well as enhance other aspects of these speakers' performance when used in the compromised, horizontal orientation and many manufacturers' horizontal MTMs do incorporate such features. Still, many do not, and that, again, probably comes down to a matter of practicality and cost.
But what you are asking is sort of like asking "why don't all the subwoofers that manufacturers offer us have a flat response down to 15Hz?".