EV XLC: A Sound Solution for an Asymmetrical Sanctuary

October 11, 2006

“This was an extreme case of architecture versus acoustics, but it all worked out superbly,“ reported Greg Mace of GJM. “First off, we worked with Skip Godwin of PA Sales on the system design, having carefully explained the advantages of line array to the customer. Robert Deyarmond at EV then determined vertical coverage and rigging height using EV LAPS software, and horizontal coverage and array spacing using EASE modeling. This was all straightforward enough, but then it was time to account for discrepancies between the room’s characteristics on paper and in practical application, so we spent a couple of days measuring the room with hands-on attention to detail.

“This sanctuary space is utterly asymmetrical,“ Mace continued, “the center of the stage is off-center in relation to the center of the seating area, and both are off-center relative to the center of the room itself! This means there isn’t a “center’ from which to plot a traditional system design. We got the plumb bob lasers out, we made calls to double check the EASE data, and we made a ton of chalk marks on the floor. Finally we shot the room with lasers, and then got out two pieces of string. After using a balance of high-tech software and simple geometry, we did a sweep of the room from front the back with the string, and where the two crossed was our center. As additional insurance, each main array grid features a custom rotatable yoke, allowing for easy, non sheet rock-invasive aiming adjustments.“

“Once they heard it, the church wished they’d made the switch years ago”

After leaving no stone unturned in finding the elusive center of the space, that too needed to be evenly covered with audio. A central array of EV XLE181 very-compact line array boxes was spec’d to fill in the 50-feet field in front of mix position. Both the main arrays cross at mix position, but, due to the irregular shape of the room, the right array is about 3dB louder. The very-compact XLE array counterbalances this effect nicely, all while acting as a fill for the front rows.

“There’s about eight feet of difference between the center hang and the left and right clusters,“ Mace added. “When you see the arrays, you immediately think “these aren’t straight, this won’t work’, but it works really well-it’s an optical illusion unlike any I’ve encountered in many years of working in houses of worship. The fact it sounds so good now is a testimony to the versatility of the XLC and the sonic precision it affords, even in tricky spaces like this.

“Once they heard it, the church wished they’d made the switch years ago,“ Mace says. “A critical part of this process was explaining that line arrays aren’t just for rock music tours-sure, they work great for that, but all that moving air and headroom can be dedicated to precise, full room coverage and, most importantly, the warm vocal reproduction they’d been missing in their old system, which was comprised of little boxes driven to distortion just to get separation to the corners of the room.

“Communicating how and why a line array’s large size and numerous drivers can actually allow it to sound more intimate and not so “loud’ takes patient explanation, rather than the hard sell approach,“ Mace added. “After all, seeing a line array rig for the first time can be quite intimidating to the uninitiated! The church felt that the EV product was better represented by its people than the other options they looked at, and they were extremely happy with their decision when they heard it for the first time.“

Equipment List:

EV XLCi127+ (two arrays of six)

EV XLC215 subs (two each flown above 127+)

EV XLE181 (central array of four)

P3000RL remote control amplifiers (12)

CPS2 amplifiers (two, powering EV T221M floor monitors)

EV RE-2 wireless (eight channels)

EV N/D767a microphones

EV PolarChoice podium microphones

EV APD4 antenna power distribution

LPA500 log periodic antennas

Klark Teknik Square One Graphics & Dynamics


Guy Low

Public Relations Producer

Telex Communications, Inc.

12000 Portland Ave. South

Burnsville, MN 55337

Phone: 952-736-3935

Fax: 952-736-4582


James Edlund

Public Relations Manager

Telex Communications, Inc.

12000 Portland Ave. South

Burnsville, MN 55337

Phone: 952-736-3901

Fax: 952-736-4582


Equipment List

Premium Dynamic Vocal Microphone

PolarChoice Podium
PolarChoice Series Podium Microphone

RE-2 Systems
Packaged RE-2 Wireless Systems

120º Horizontal, 3-Way Compact Line Array Element

High-Output Dual 15” Subwoofer Line Array Element

120° Horizontal, 2-Way Compact Line Array Element

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