109. The Case For Flying Loudspeakers

In this episode, James and Gary delve into the significance of proper speaker placement in houses of worship, emphasizing that flown speakers provide more consistent audio coverage and intelligibility throughout the audience. By recalling a recent on-site visit, they illustrate the disparities in sound levels between the front and back rows of a small church. Their analysis reveals that improperly placed ground-stacked speakers can create a sound imbalance that makes it difficult for attendees in the back to hear clearly, while those in front are overwhelmed.

The hosts discuss the impact of decibel levels on sound intelligibility, explaining that a significant difference (12 dB) between the front and back rows can drastically affect the congregation's ability to hear and understand the message. James simplifies the concept of decibels and their logarithmic nature, explaining how a small number can represent a massive difference in perceived sound. This serves as a critical reminder of the importance of maintaining intelligible sound levels across different locations in a worship space.

The main theme centers around the benefits of flying speakers over ground-stacked ones. By raising the speakers, they achieve an optimal distance ratio, enhancing overall sound coverage. When speakers are flown, they also address the challenge of high-frequency sound propagation, allowing audio engineers to direct sound more effectively towards the back of the room while reducing the negative impact on those at the front. This strategic angling can significantly improve sound clarity across the entire audience.

James recounts a practical application where ground-stacked speakers were replaced with flown Mackey speakers. The hosts take the opportunity to emphasize the importance of proper installation techniques, ensuring safety while adjusting speaker height and angle. They remind listeners of the necessity of adhering to weight ratings and other safety protocols when flying speakers, offering valuable insights for sound engineers.

Looking ahead, the hosts ponder the potential for future episodes to cover detailed measurement practices and more advanced speaker systems such as constant curvature arrays and line arrays. They conclude with a commitment to help church sound technicians enhance their audio setups to better serve their communities.