This large reflector can be avoided in the "end-fire array".

Because of the physical size of the end-fire array, few concert venues are able to implement it.

A virtual end-fire array is formed.

A different sort of end-fire array which is much more often used is based on the use of so-called "parasitic elements".

A slightly different feed method could cause this same array of dipoles to radiate as an "end-fire array".

In that case, an end-fire array is one in which the intended directionality is in the direction of the array.

Compared to the end-fire array, this method has less on-axis energy but more even pattern control throughout the audience, and more predictable cancellation rearward.

The end-fire array trades a few decibels of output power for directionality, so it requires more enclosures for the same output power as a tight-packed, flat-fronted array of enclosures.

Depending on the relative phase introduced by the network, the same combination of dipole antennas can operate as a "broadside array" (directional normal to a line connecting the elements) or as an "end-fire array" (directional along the line connecting the elements).