Audio applications
Fohhn Audio Solutions
FOHHNHouses of Worship

Mosques & Houses of Worship

Marble, domes and long reverberation tails — steered columns keep the khutbah crystal clear without visual intrusion.

Typical RT60
4.5 – 7 s
Target STI
≥ 0.62
Visual impact
Near zero
The acoustic challenge
  • Hard, highly reflective finishes — marble floors, plaster domes and glass — produce reverberation tails that smear consonants long after the word is spoken.
  • Loudspeakers must respect the architecture and calligraphy; visible boxes and brackets are rarely acceptable.
  • Coverage has to reach the main prayer hall, the mezzanine and the courtyard without energising the dome.
The CaesarTechs engineering approach
  • Slim steered columns are mounted flush to columns or walls in a finish matched to the interior.
  • Multiple independent beams are generated per column — one aimed at the ground floor, one at the mezzanine — with almost no energy above the audience plane.
  • The reverberant field is starved rather than fought, lifting the direct-to-reverberant ratio and with it intelligibility.
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Recommended system

The stack we would specify for this environment.

Loudspeaker families
Linea Focus · ARC Series
Amplification & DSP
System Amplifier DI-4.1000
Beam steering strategy
Multi-beam, one beam per prayer level
Speech first

Every beam is optimized around the vocal band before anything else.

No re-aiming

Coverage is adjusted in software during commissioning and afterwards remotely.

Discreet

80 mm slim profiles that read as architectural elements, not equipment.

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Integration scope
01

Custom RAL / anodised finishes to match stone and timber

02

Flush and recessed mounting details coordinated with the architect

03

Cable paths and amplifier rooms designed with the MEP package

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Visual reference

How it looks in the space.

Mosques & Houses of Worship audio integration reference 1
Mosques & Houses of Worship audio integration reference 2
Mosques & Houses of Worship audio integration reference 3
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Acoustic telemetry

The numbers behind the design.

Reverberation decay · RT60 5.5s
0 dB-60 dB
STI (predicted)
0.64
Direct / reverb
37%
SPL variance
± 4.8 dB
Throw distance
34 m
Vertical dispersion
Beam angle
-18°
Opening
14°
Mount height
14 m
Steering
Digital
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Signal chain

Microphones, UC codecs, media players and the emergency interface arrive on a redundant network layer with priority routing.

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Zone planner

Select the zones in your houses of worship project.

Zones selected
3
Beam channels
5
Amplifier estimate
2 × DI-4.1000
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Coverage simulator

Pre-loaded with typical houses of worship room data.

Adjust the room, steer the beam and export a branded coverage study for your project file.

Select the space
Scale

Long reverberation and a wide distributed prayer floor. Priority is speech intelligibility with minimum energy on the dome and rear walls.

ViewCovered 77/132 · marginal 0
8.5 m20.7 m
Conventional loudspeaker — same room
8.5 m20.7 m38 m × 30 m × 16 m · Mosque / prayer hallDesign simulation — estimated coverage, not a measurement

Click any listening position to move the virtual listener · drag the array to change mounting height · every value is a design estimate until site measurement.

Room geometry · Mosque / prayer hall

Showing the parameters that matter most for a mosque. Switch to “Build my room” for the full geometry set.

LayersSeats covered 9/14 · drag the array, beam handle or listener
Conventional loudspeaker

Fixed vertical dispersion sprays energy at ceilings and rear walls. Reflections smear consonants.

Fohhn Beam Steering
7m14m20m27m34m-18°6.5m81 dB · 21m

Drag the array to set mounting height, drag the handle to steer, drag anywhere to move the listener.

Live acoustic telemetry
1 beam14° coverageRT60 5.5s45 dB(A)Beam locked
0 m34 mSteered line source — 3 dB / doublingConventional — 6 dB / doubling
STI gain
+50
D/R
4.4 dB
Uniformity
±2 dB
Coverage profile along the audience
Front to rear · 34 m · 1 beam at -18° / 14°
83 dB
81 dB
79 dB
78 dB
84 dB
83 dB
82 dB
82 dB
81 dB
81 dB
80 dB
80 dB
80 dB
72 dB
0 m17 m34 m
Beam steered Conventional
Front-to-rear variation
±5.7 dB
Conventional variation
±10.8 dB
Rear headroom over noise
+27 dB
Array mouth / ceiling
6.5 m of 14 m
Suggested family
Linea Focus
Amplification
System Amplifier DI-4.1000

Steered energy holds level across the seating plane instead of falling away behind the first rows — indicative design estimate, not a measurement.

Live audition · hear the configuration

Real programme material — a recorded announcement, a music bed or a pink-noise test signal — played through the current room, beam and noise settings.

Audition idle
Direct / reverberant
+6.0 dB
Room decay in ear
5.5 s RT60
Noise floor
45 dB(A)

Beam on the listener at 21 m — direct sound stays forward of the room tail, articulation holds at STI 0.78. Indicative sound design simulation, not a measurement or a Fohhn recording.

Dolby surround test

Channel-by-channel identification for a 5.1 / Atmos room. Tap any speaker to fire that channel, or run the full sweep.

Listener

Output routing is detected on first playback.

Live simulation
Conventional STI
0.29
Beam steered STI
0.78
Direct / reverberant
4.4 dB
Suggested family
Linea Focus
SPL at listener
81 dB
Headroom over noise
+36 dB

Beam locked on the listener — approx. +50 points of speech-intelligibility improvement versus a conventional system in the same room.

Drag inside the steered room to move the listener. Indicative simulation — not a measurement of a specific project.

Engineering study · project record
Engineering notes · auto-generated, editable

Design simulation — estimated performance until site measurement

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Typical project profile
Grand prayer hall
Multi-level steered coverage with courtyard extension
Community mosque
Single-column-per-bay approach, remote monitored
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Delivery program
PHASE 01
Acoustic survey

Site measurement of RT60, noise floor and geometry against the architect's model.

PHASE 02
Coverage modelling

Beam plots per zone with predicted STI and SPL maps issued as a report.

PHASE 03
Design & BOM

Loudspeaker schedule, amplifier count, cabling and containment drawn in CAD.

PHASE 04
Supply & staging

Equipment pre-configured and load-tested in the CaesarTechs facility.

PHASE 05
Installation

Mounting details coordinated with the fit-out contractor and MEP package.

PHASE 06
Commissioning & handover

On-site tuning, as-built documentation, operator training and remote monitoring.

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Engineering questions

We model the room in acoustic software and issue beam plots with predicted STI for every zone of the houses of worship space before a single bracket is ordered.

Yes. Beams are steered digitally, so re-tuning after a fit-out change is a software session — no ladders, no re-rigging.

Slim column profiles in custom finishes, flush or recessed where the architecture allows. Most clients see nothing at first glance.

The DSP core supports prioritised emergency broadcast paths and supervised monitoring alongside the everyday program audio.

CaesarTechs provides remote monitoring, firmware management and an SLA-backed response with local engineers.

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Other audio environments
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Let's design the audio for your houses of worship project.

Share your drawings and we will return a coverage plan, a bill of materials and a commissioning scope.

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