Skip to main content

Mosque/Open Worship Center

Reverberant Clear Space

This is a mostly open, large space with structural pillars or columns supporting the ceiling and vaulted spaces. A relatively unobtrusive audio system preserves the architectural themes, and minimizes sound reflections on upper walls and ceilings.
Delivering speech clearly to large spaces with acoustically reflective surfaces must be balanced. To accomplish clear speech delivery, position ENTASYS ENT-FR line array column loudspeakers to direct sound to the intended listeners. Stacked 2-4 module ENT-FR arrays flanking the cleric addresses the majority of listening areas and provides directionality from the presenter. Using these highly directional loudspeakers minimizes impact on the reflective surfaces and microphones.
Nearby listeners can benefit when rear and side wall reflections are directed back to them. This reflected sound can also be partly absorbed by the congregation (when fully occupied) reducing "slap back" effects.  In similar larger spaces, supplemental arrays may need to be taller to cover the related distance. Additional loudspeakers may also be needed on all of the interior columns to cover acoustically shadowed areas or to address the extended space. Sometimes, larger delay zones do not integrate well, and smaller zones addressed by single ENT-FR (or ENT200) models better optimize intelligibility.

AMPLIFIER

For maximum system performance and longevity, the loudspeakers must be properly powered to achieve the needed sound pressure level (SPL) in the listening area.  Refer to the product spec sheets for appropriate amplifier ratings.

PROCESSING AND PROTECTION

To properly process, equalize and protect the loudspeaker systems, it is recommended to use the Community dSPEC226 digital signal processor.

Some amplifiers have built-in processing which may be adequate when properly programmed. Community's suggested DSP settings can be found HERE.

All of the loudspeakers require an electronic high pass filter for protection against over-excursion from bass-heavy program material.

Loudspeaker protection on the dSPEC226:
Protection is handled by three stages of protective limiters: these include a short-term peak limiter to prevent over-excursion of drivers and to control amplifier clipping; a mid-term RMS limiter that prevents system overdrive; and a unique long-term power monitor that works to protect your loudspeakers from long-term thermal damage.  All three limiters operate interactively, providing unique driver protection, while allowing each loudspeaker’s full dynamic range to be utilized without compromise.

 

WIRING

When considering the distance between the amplifier and the loudspeaker(s), the following minimum cable gauges are suggested.

Less than 50 feet: 14 AWG
50 to 100 feet: 12 AWG
100 to 250 feet: 10 AWG

It is strongly recommended that all loudspeaker level wire be stranded, twisted and never shielded. Loudspeaker wires should not be connected to earth ground or supporting structures.

 

TECH SUPPORT

For technical and applications assistance, please contact the Community TAG Team (Technical Applications Group) at 1+(610) 876-3400 or tagteam@communitypro.com.

 

DESIGN GUIDE

To view the entire House of Worship Loudspeaker System Design Reference Guide, click HERE.