Whether a system’s primary loudspeakers are point source clusters or line arrays, there may be a hole in coverage for the seats closest to those arrays.

Curved line arrays (J-arrays) may - or may not - allow the lowest elements to be aimed appropriately to cover these nearby seats. More traditional point source arrays can be just as tricky.

Simply throwing another box in at the bottom is not likely to provide the required coverage.

Therefore, a dedicated down fill box is often the best candidate.

Several companies design and manufacture purpose-built down fill loudspeakers that fit with arrays and have rigging points to expedite their use.

Several of these dedicated down fill boxes also provide asymmetrical coverage to better fit the required coverage area. These can perform very well and also present the cleanest appearance for both temporary and permanent installations.

Step By Step
Used almost exclusively for front fill in worship spaces, stair-step loudspeakers are designed to be flush mounted into the platform steps in an effort to reduce clutter and visibility. Many platform stairs present a reduced rise (6 inches, typically), which leaves very little height for such loudspeakers.

Down fill solutions that integrate into arrays/clusters from (left to right) Danley Sound Labs, Meyer Sound, and Tannoy.

Most of the models I’ve evaluated with this small of a footprint simply do not have enough horsepower to reach the first rows at an appropriate volume level when the seating is spaced well away from the platform, which occurs frequently in larger modern worship spaces.

Of equal concern is the low mounting height, which makes it very difficult to cover past the first row of seats. So do your homework and make informed decisions when you’re forced to consider this direction. 
 

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