Auto Solution
The main and monitor systems represent a piece of the solution puzzle, with the other major piece addressed by a separate “automixing” system that can be easily activated when needed.
A Mackie DX810 DSP mixer/router resides at the heart of the system. It’s a flexible unit that’s software programmable, offering flexible routing, true matrix mixing if needed, as well as ample compressors, gates, parametric and graphic filters, delays and more.
The DX810 supplies output to a dozen JBL 2142H coaxial ceiling loudspeakers mounted throughout the space. Two QSC CX Series amps mounted with the other amplifiers drive these 70-volt lines.
In addition to the main podium microphone, the DX810 also receives a feed from a Shure dual-channel wireless receiver, as well as another feed from a Rane 8-channel line mixer for source devices such as CD/tape player combo, DVD player and the like.
Tying this automatic system and the house system together is an AMX VPX-GS control system custom programmed by Sound Reinforcements, Inc. for extremely both easy activation and setting of the automatic system as well as convenient switching between the two systems.
A touch screen at the rack allows these adjustments to be made there, or this capability can be done in the room via a wireless touch panel.
“This is ideally suited for rudimentary system function without need for an operator, solving a lot of problems in that regard while guaranteeing quality audio,” Eldridge says. “Out of the 56 total channels in the room, 10 are always on when you need them to be. Basically, it’s just plug and play, with adjustment of level and source selection done with a touch or two of the control panel.
“And the AMX has a few other little useful features programmed in,” he continues. “For example, when the cassette deck is in record mode, it’s output back into the system is automatically muted, so the system doesn’t go into feedback. It’s nice to be able to record a lecture or meeting without worrying about problems like that.”
Functional Whole
Eldridge notes that during the contractor interview/selection process at the outset of the project, Sound Reinforcements, Inc. stood out because “they seemed to be more involved with the project, more interested in talking things over to come up with the best solution.
“Our relationship with them has been great, and I think you can see the results here. All of the little details have added up to a highly functional whole.
Robinson concludes by stating that the positive outcome at Highland Park Presbyterian Church resulted from a cohesive team serving a client that clearly expressed what they wanted and backed it with complete support.
“Acoustic Dimensions did an outstanding job of laying the foundation and guidelines – they were a joy to work with. John Eldridge is just what a church should have in terms of communicating goals and asking the right questions. It’s all added up to a system that meets the stated criteria and then some, with a zero failure rate joined by quality, flexibility and convenient operation.”
Keith Clark is editor of ProSoundWeb.com.