oh my...

[audioholic 5,000+ posts]

So it's just something you'd probably have to deal with then. That would be too much trouble to try to fix.

Fixing it after the fact would be very difficult in most situations. Its a problem that is best addressed in the design phase.

This 'mistake' is extremely common these days. Not just in walls or speaker arrays.

 

[hatedonmostly 5,000+ posts]

The video clearly shows at least one of the drivers moving out of rhythm with the others. This means it is either out of phase with the other drivers, or the enclosure was designed so that the port opening is not equidistant from each speaker, which would place uneven resistance on each cone's ability to move, leading to non-uniform excursion from one driver to the other. Its a fairly common design problem with walls holding an array of smaller subs, as building it symmetrical about every speaker can be a real task.

I had to watch it a few times to catch it, but you're correct.

Check out this video. Honestly, I thought one of those drivers were blown, skip to 1:11

http://www.youtube.com/watch?v=X1U0MeNEUU0

Dude clearly has no idea what he was doing building that truck, he has two rows of three subs, then one row of two? Yeah buddy, that's not gonna have loading issues or anything, just randomly cutting holes for subs in a baffle like that...