Danley’s Jericho Horn Covers 30,000 Fans at Troy University

Veterans Memorial Stadium, home to the Troy University Trojans in southeastern Alabama has seen a progression of additions and upgrades over the decades that have pushed its current capacity to 30,000 fans. The university contracted A/V provider, All Pro Sound of Pensacola Florida, who recently revamped the stadium’s sound system with Danley’s Jericho Horn, the JH-90 (aka the J1). The sound system now delivers reference-monitor fidelity to every seat in the horseshoe-shaped bowl at 6 dB over the previous system using just a single JH-90 that is positioned behind the upper portion of the scoreboard.

Partly as a consequence of its history, Veterans Memorial Stadium has a few unique features that affected the design of its sound system. Most notably, its scoreboard is set back from the seating by several hundred feet in the open portion of the horseshoe.

“In some respects, it’s not ideal,” said Chad Edwardson, a design engineer at All Pro Sound during the project. “But it does make it easier to deliver consistent SPL across the seating. In that respect, the distance-doubling rule of physics worked with us at Troy.”

The nearest seating is approximately 300 feet and just at the edge of the Jericho Horn’s 90-degree beam width. The farthest seating is approximately 700 feet across the field. With six 18-inch low-frequency drivers, six 6-inch mid-frequency drivers, and three 4-inch two-way high-frequency drivers, the Jericho Horn JH-90 is a true four-way design.

Although users have the option of adding 20,000 Watts of self-power and/or user-adjustable DSP, Edwardson was able to repurpose the stadium’s existing amps and outfit the system with an external Danley
DSLP48 processor. The combination of Danley technologies enable Troy’s single Jericho Horn to supply even coverage out to the farthest seats in the
stadium. Owing to the Synergy Horn technology on which it is based, the
frequency response of the Jericho Horn is smooth in all dimensions with
outstanding phase response.

“The Jericho Horn is the only box that can simultaneously provide high SPL at the far end of the stadium and yet still sound like a reference monitor at one meter,” said Edwardson. “It’s the kind of thing you really need to experience to fully appreciate.”

The installation itself also went smoothly.

“The Jericho Horn is heavy, sure, but because we can cover an entire 30,000-seat stadium with just a single box, the installation was fast,” said Edwardson. “Using a crane, we had the box off the ground, set in place, and properly angled in fifteen minutes. After that, the wiring, setup, and tuning all happened in the span of a single day. In the past, I would have spent multiple days on an installation like this. But at Troy, we left from home, made the three-hour drive to Troy, installed the system, tweaked it to perfection, and drove home in time for dinner.”

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