Advantage/disadvantage to having dual center channel speakers

[jam200]

This is my first official post. I'm interested in knowing the advantages and disadvantages of having dual center channel speakers. I have a Rotel RSP-1068, which allows for dual center speakers. I would use dual B&W HTM7's with 703s in the front. I also have B&W 601's for the center backs and B&W 685's for the surrounds.

I would drive the HTM7's with a Rotel RB-1070. I'm using another RB-1070 to drive the mains and a RMB-1075 to drive the surrounds and center backs.

Appreciate your comments.

[wgriel]

I'm under the impression that the center channel is a mono stream: I don't see any advantage to using 2 center speakers in this case.

[Kal Rubinson]

Also, dual speakers reproducing the same signal but displaced in the horizontal plane with interfere with each other acoustically. The result is irregular dispersion with the so-called "Venetian Blind" effect. There is no good acoustic justification for using two, only esthetic or ergonomic reasons.

Kal

[William]

...so-called "Venetian Blind" effect. There is no good acoustic justification for using two, only esthetic or ergonomic reasons.

Kal

Also called audio comb filtering. BAD idea.

[wettou]

Get the best center channel that you can afford with the best amp and you will have the best. :B

B&W 800D with Classé CAM400