Timing is Everything: Time-aligning Speakers for Your PA

When a PA system isn’t able to properly cover the audience, a common remedy is to add supplemental speakers, frequently called ancillary speakers (ancillary means “providing something additional to the main function”). In some cases, you need to place these speakers far enough away from the main PA that you need to delay their input to keep the sound coherent and time-aligned.

Πηγή: Timing is Everything: Time-aligning Speakers for Your PA