By Gary Zandstra • January 16, 2015 This article is provided by Gary Zandstra.com. Recently I took a compact line array rig out for a demo that was also a live event. The system included six full-range line array modules and four 18-inch-loaded subwoofers, driven by 12,000-watt amplifiers—and there were four more 18-inch subs sitting in the corner. The demo room wasn’t all that large, and when I walked in and saw the size of it, and then pondered the scale of the system and those four extra subs, my first thought was, “We have way more PA than we’ll ever use—I hope we don’t hurt anyone.” I was then introduced to Rick, who was running the event and also serving as the front of house mixer, and after exchanging pleasantries, I mentioned that we wouldn’t be needing the subs. Rick simply gave me a tight smile and said, “We’ll see.” We finished setting up the system and Rick patched in his iPod, and we began listening. By the conclusion of the first measure of music, I realized my statement about not needing the subs was wrong. The music was hip-hop, and while the full-range line array had a solid, balanced attack, it was having a hard time going as deep as the program material demanded. The combination of the 18-inch subs handling the deep, really low frequencies combined with the overall solid performance of the full-range boxes was the right ticket. This was furthered because Rick divided the subs into two groups, each with its own aux send so that they could be further tailored and optimized. The system rocked the house; the only problem was the occasional tripping of a breaker because there weren’t enough separate electrical circuits to spread out the power load. Another issue was that I had to eat humble pie, but Rick was nice about it and chose not to rub it in. (Maybe it was because I brought a free sound system for him to use.) This brought to mind a similar experience… Read the rest of this post 1 2 About Gary Gary Zandstra Consultant, Dan Vos Construction, Writer for Worship Facilities and ProSoundWeb Gary Zandstra has worked in church production and as an AV systems integrator for more than 35 years. He’s also contributed numerous articles to ProSoundWeb over the past decade. http://garyzandstra.com Comments Have something to say about this PSW content? Leave a comment! Cancel reply Scroll past the ”Post Comment” button below to view any existing comments. Your email address will not be published. Required fields are marked *Comment Name * Email * Website This site uses Akismet to reduce spam. Learn how your comment data is processed. Tagged with: Audio Basics Best Practices Concerts Engineer Gary Zandstra Mixing Worship Audio · all topics Subscribe to Live Sound International Subscribe to Live Sound International magazine. Stay up-to-date, get the latest pro audio news, products and resources each month with Live Sound.