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Articles May-June 2021

Pursuing the Pro Audio Trail

In conversation with Caroline Moss and Sue Gould

PT got in touch with the Pro AVL Asia magazine core team of Editor - Caroline Moss and Sales Director - Sue Gould, who between them boast of over three decades of experience in the pro audio industry..... read more

NJSM Marks a Milestone in the Business of Sound

From Rental Company to manufacturer and innovator, Nixon Johnny has guided and grown NJSM from a two-person company to a fifty-person company, continuing to expand into virtual events with NJSM Virtual Studio..... read more

Tech Savvy Environment for T-Systems

Eyte Technologies installs high-tech AV Solution at T-System’s Experience Center facilitating brand value and delivering superior customer experience..... read more

Conversations with SudeepAudio

Sudeep Audio, one of India’s first pro audio web store selling studio software and equipment online commenced its YouTube Channel, ConverSAtions, in 2011 to share the journey of Indian Sound Engineers..... read more


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House of Worship Speakers



For any House of Worship, it is not only important that the congregation is able to hear the words spoken by the priest but also understand the message being delivered. A good and professional sound system can allow the congregation to be more focused and help the service run smoothly.

Here are some of the popular speakers to enhance the sound in any House of Worship.


Nexo GEO M6


Powerful and flexible, NEXO GEO M6 delivers uncompromised full-range sound in a wide variety of fixed installations and mobile applications. The GEO M6 comprises of two identically-sized cabinets – the GEO M620 main and GEO M6B bass extension.

Main Features include:

  • Integral Rigging - The 3-point rigging system is hidden inside the cabinet, reducing visual impact.
  • Custom RAL Colors - Lightweight polyurethane composite cabinets, fabric grilles and accessories can be specified in any RAL color.
  • Systems can be flown, ground stacked or pole-mounted on subs.
  • GEO M6 utilizes NEXO’s patented Hyperbolic Reflective Wavesource (HRW) to control acoustic energy by creating a virtual wavesource.
  • System flexibility can be increased by adding flanges to the HF waveguide exit.

Technical Specification: (GEO M620)

  • Frequency Response: 80Hz – 19kHz ±3dB
  • Usable Range @-6Db: 75Hz – 20kHz
  • Sensitivity 1W @ 1m: 95dB SPL Nominal
  • Nominal Peak SPL @ 1m: 127dB
  • HF Dispersion: 80˚or 120˚Horizontal (CCD)
  • Crossover Frequencies: LF-HF: 2kHz Passive
  • Nominal Impedance: 8Ω
  • Recommended Amplifiers: 450W per box (3 boxes max in parallel on one channel amplifier)

Product Features

  • Components: LF: 1 x 6.5” 8Ω long excursion driver; HF: 1 x 1” throat driver on a BEA/FEA optimized HR Wavesource
  • Height x Width x Depth: 191mm x 373mm x 260mm
  • Weight: Net 9.7kg
  • Connectors: 2 x NL4 Speakon 4 poles
  • Construction: Lightweight Polyurethane composite

System Operation

• Speaker Cabling: 2+/2- L


QSC CP12


The QSC CP12 is a compact design with a rugged appearance. CP is equipped with a highly efficient, 1000-watt power amplifier, matching transducers and advanced DSP, delivering performance beyond expectations for a loudspeaker of this size. Because of its compact size, CP is remarkably lightweight, making it easy to load, carry, lift and deploy in a wide range of portable and installed applications. 

Main Features include:

  • Compact and powerful performance
  • 1000 Watt peak power Class-D amplifier module
  • Easily selected contours for commonly-used applications
  • Advanced DSP with Intrinsic Correction for superior sound quality and speaker protection
  • Directivity Matched Transition (DMT) for consistent frequency response across the entire coverage area
  • Light weight and highly portable
  • Professional appearance looks great in any application
  • Use for main PA, stage monitor, or instrument amplifier
  • 35 mm pole socket
  • Optional yoke, tote, and outdoor cover accessories
  • Complete EASE and CAD information available online
  • 6-Year Warranty C

Technical Specification:

  • LF Transducer: 305 mm (12 in), cone
  • HF Transducer: 35.6 mm (1.4 in) compression driver
  • Frequency Response (-6 dB): 49 - 20 kHz
  • Frequency Range (-10 dB): 47 - 20 kHz
  • Nominal Coverage Angle: 75° Axisymetric
  • Maximum Rated SPL¹: 126 dB
  • Amplifier: Class D
  • Peak: 800 W (LF), 200 W (HF)
  • Controls: Power, 2 × Gain; Mic Boost Push Switch; 6-way Contour Selection Switch
  • Indicators: Power LED; 2 × Input Signal LED; Input B MIC selected LED; Limiter active LED
  • Connectors: 2 × locking XLR/F ¼” combo (Line Input and Mic/Line input); 1 × 3.5 mm TRS (Stereo Input); 1 × XLR/M (Mix Output); 1 × IEC power connector
  • AC Power Input: Universal power supply 100 – 240 VAC, 50 – 60 Hz
  • AC Power Consumption (1/8th Power): 100 VAC, 0.75A - 240VAC 0.31A
  • Enclosure Material: Polypropylene
  • Attachment Points: M8 threaded insert
  • Color: Black (RAL 9011)
  • Grille: 18 Gauge powder-coated steel
  • Speaker Dimensions (H×W×D): 516 × 350 × 323 mm; 20.3 × 13.8 × 12.7 in
  • Net Weight: 13.7 kg / 30.3 lb

d&b audiotechnik xC series


The 2-way passive xC-Series column loudspeakers are elegantly engineered to provide effective, discreet solutions for acoustically challenging environments. The series are the 16C, 24C and 24C-E Column loudspeakers and are available in black and white colors. 

Main Features include:

  • remarkable directivity control
  • even off/axis frequency response
  • full bandwidth cardioid dispersion pattern
  • 4” drivers radiate through waveguide elements
  • cardioid dispersion pattern minimizes interference caused by wall reflections in the low and mid frequencies
  • Two continuous rails at the rear enable the loudspeakers to be fitted close and parallel to the wall

Technical Specifications (24C-E):

System data

  • Frequency response (-5 dB standard: 110 Hz - 17 kHz
  • Frequency response (-5 dB CUT mode): 150 Hz - 17 kHz
  • Max. sound pressure¹ : 128 dB (in combination with 24C)
  • Cabinets per amplifier channel: 1

Loudspeaker data

  • Configuration: Installation specific cardioid column extender
  • Power handling capacity (RMS/peak 10 ms): 250/1200 W
  • Vertical downtilt of low-mid beam: 5°
  • Vertical adjustment of HF section: 0° ‒ -14°
  • Nominal dispersion angle (h x v): 90° x 20°
  • Components: 24C-E: 6 x 4” driver with neodymium magnet; 24C + 24C-E:; 12 x 4” driver with neodymium magnet; 6 x 1.1” dome tweeter mounted in vertical; horn array
  • Connections: fixed cable gland with 2-pole Mate-N-Lok mini through 24C

Dimensions / Weight

  • Dimensions (H x W x D): 701 x 124.5 x 124 mm; 27.6 x 4.9 x 4.88”
  • Weight: 7 kg / 15.4 lb L

JBL CBT Series


The JBL CBT Series line array columns with Constant Beamwidth Technology are designed for venues that would typically use larger point-and-shoot speakers. The CBT models: CBT 50LA-1, CBT 50LA-LS, CBT 100LA-1, CBT 100LA-LS, CBT 70J-1, CBT 70J-1 + 70JE-1 System, CBT 200LA-1, CBT 1000, and CBT 1000 + CBT 1000E System incorporate technical advancements that allow them to vastly outperform competitive systems, virtually eliminating the challenges of delivering great sound. 

Main Features include:

  • Asymmetrical vertical coverage to send more sound toward far area of room to make sound levels consistent.
  • Constant Beamwidth Technology provides constant directivity up to the highest frequencies and reduces out of coverage lobing.
  • Patent-pending Tapered Horizontal Waveguide provides a continuously varying horizontal dispersion delivering superior.
  • Single-speaker room coverage at high SPL, with little over-splash and strong bass response down to below 40 Hz.
  • Switchable voicing provides flat response in music mode or mid-range presence peak in speech mode.
  • Swivel (pan)/tilt wall bracket included.

Technical Specifications (CBT 1000):

  • Drivers: 6 X 165 mm (6.5 in) LF drivers 24 X 25 mm (1 in) HF drivers
  • Frequency Response (-10dB): 45 Hz – 20 kHz
  • Sensitivity (1W, 1m): 102 dB (at highest sensitivity setting); 95 dB (at lowest sensitivity setting)
  • Impedance: 4 ohms (4 ohms above 1 kHz; 8 ohms below 800 Hz)
  • Power Rating: 1500 W (6000 W peak), 2 hrs; 1000 W (4000 W peak), 100 hrs
  • Maximum Input Voltage: 65.0 Volts RMS (2 hrs), 130.0 Volts Peak
  • Maximum SPL (1m): Highest directivity setting: with “Speech” voicing: 131 ; dB continuous average pink noise, 134 dB continuous; program, 137 dB Peak
  • Recommended High-Pass; 35Hz, 24 dB/oct or greater
  • High Frequency Drivers: 24 pcs, 25 mm (1 in) drivers, neodymium, encased magnet and coated diaphragm for moisture, UV, and salt resistance.
  • Enclosure: Fiberglass reinforced ABS cabinet, powder coated 1050 aluminum grille
  • Outdoor Capability: IP-55 rated, per IEC529, when installed with optional ; MTC-PC2 cover.
  • ASTM G85 for acid-air/salt-spray (200 hrs.).
  • Color: Black (RAL9004) or White (-WH) (RAL9016)
  • Dimensions (H x W x D): 1020 mm x 250 mm x 345 mm (40.2 x 9.9 x 13.6 in)

L-Acoustics ARCS Series


The ARCS WIDE and ARCS FOCUS systems are based on two constant curvature enclosures ensuring distinct directivity pattern and SPL capabilities. Intended for medium-throw applications in rental productions and fixed installations, these line sources deliver remarkable acoustic properties and unmatched versatility for applications including FOH L/R systems, central clusters, side-fill monitors, distributed systems and complementary fills.

Main Features include:

  • Optimized for medium-throw rental and installation applications
  • Plug-and-play package, quick set-up and easy flying
  • Scalable directivity from 30° x 90° to 360° x 90° by 30° increments
  • Fills, distributed systems, FOH, central clusters
  • Innate LF resources, possible extension with SB18m subwoofers
  • LA4X/LA8 drive and protection, same preset for Wide and Focus
  • IP 55 protection rating

Technical Specifications (ARCS WIDE):

  • Usable bandwidth (-10 dB) : 55 Hz - 20 kHz ([ARCS_WIFO] preset)
  • Maximum SPL¹: 137 dB ([ARCS_WIFO] preset)
  • Coverage angle (-6 dB): 30° x 90°
  • Transducers: LF: 1 x 12’’, weather-resistant, bass-reflex; HF: 1 x 3’’, diaphragm compression ; driver, DOSC waveguide
  • Nominal impedance: 8 Ω
  • RMS power handling: 450 W
  • Connectors: IN: 1 x 4-point SpeakOn; LINK: 1 x 4-point SpeakOn
  • Rigging components; Rigging rails and WIFORIG coupling bars

Physical data

  • W x H/h x D: 365/140 x 759 x 444 mm ; 14.4/5.5 x 29.9 x 17.5 in
  • Weight (net): 36 kg 79 lb
  • Cabinet: Baltic birch plywood.
  • Finish: Dark grey brown PANTONE 426C; Pure white RAL 9010; Custom RAL code on special order
  • Front: Steel grill with anti-corrosion coating, Airnet fabric
  • Protection Rating: IP55
  • Rigging components: High strength steel with anti-corrosion coating

Bose Panaray MSA12X


The Bose Professional Panaray MSA12X is a self-powered digital beam-steering loudspeaker that enables improved room aesthetics, with outstanding vocal intelligibility and tonal consistency. It can be used for House of Worships, Auditoriums, conference rooms, lecture halls, and transportation facilities.

Main Features include:

  • Digital beam-steering line array column loudspeaker with onboard DSP and 600 watts (12 x 50 W) of amplification
  • Family sound profile with the Panaray MA12EX Loudspeaker
  • Twelve (12) x 2.25-inch full-range transducers with 58 Hz – 18 kHz frequency range
  • Dante digital audio network interface and line-level analog input
  • Articulated Array configuration allows wide, 160° horizontal coverage
  • Modular design allows building vertical arrays using 1-3 units
  • Multiple algorithms for beam steering control – designers can optimize consistency of coverage, tonal balance, and maximum SPL per job
  • Supports independent level and EQ control of 2 separate beams per array
  • Integrated mounting bracket allows up 90° of horizontal yaw adjustment
  • Advanced steering and acoustic coverage prediction using Bose Modeler software
  • System setup, control and monitoring with Bose ControlSpace Designer software
  • Available in black or white finish

Technical Specification:

  • Frequency Range (-10 dB): 58 Hz – 18 kHz
  • Horizontal Dispersion: 160° H
  • Vertical Opening Angles: Software Adjustable: 1 module: up ; to 30°, 2-3 modules: up to 40°
  • Vertical Beam Steering Angles: + / - 20°
  • Driver Compliment: Twelve (12) x 2.25-inch full-range transducers
  • Amplifier Power Handling: 600 W (12 x 50 W)
  • Maximum SPL @ 1 m: 112 dB SPL (118 dB SPL peak)
  • Inputs: Dante digital audio network interface and line-level analog input

RCF HDL20


The careful acoustic design, no compromise transducers and a unique, composite cabinet, design make the HDL 20-A the preferred tool of many professionals. The system is powered from a 1400-Watt Peak Power 2-way digital amplifier, sound is processed from a powerful DSP.

Main Features include:

  • 1400-Watt Peak power - 700 Watt RMS
  • 135 dB max SPL
  • 55 Hz 20 kHz frequency response
  • 2 x 10” Woofers
  • 1 x 3” Compression Driver
  • DSP controlled Input section with selectable presets
  • Tour grade safe and solid variable mechanics
  • Composite PP enclosure structurally wooden reinforcedo

Technical Specification:

Acoustical specifications

  • Frequency Response: 55 Hz ÷ 20000 Hz
  • Max SPL @ 1M: 135 dB
  • Horizontal Coverage Angle: 100°
  • Vertical Coverage Angle: 15°

Transducers

  • Compression Driver: 1 x 2.0’’, 3.0’’ v.c
  • Woofer: 2 x 10’’, 2.5’’ v.c
  • Input/Output section
  • Input Signal: bal/unbal
  • Input Connectors: XLR
  • Output Connectors: XLR
  • Input Sensitivity: -2 dBu/+4 dBu

Processor section

  • Crossover Frequencies: 800 Hz
  • Protections: Thermal, RMS
  • Limiter: Soft Limiter
  • Controls: Cluster, HF, High curving, Indoor

Power section

  • Total Power: 1400 W Peak, 700 W RMS
  • High Frequencies: 400 W Peak, 200 W RMS
  • Low Frequencies: 1000 W Peak, 500 W RMS
  • Cooling: Convection
  • Connections: Powercon IN/OUT
  • Physical specifications
  • Cabinet/Case Material: PP Composite
  • Hardware: Rigging flyware
  • Handles: 2 side, 2 back
  • Grille: Steel
  • Color: Black

Size

  • Height: 294 mm / 11.57 inches
  • Width: 705 mm / 27.76 inches
  • Depth: 445 mm / 17.52 inches
  • Weight: 30.2 kg / 66.58 lbs

Audio Focus ARES8a HQ


ARES8a HQ is a dual 8’’ enclosure line array with and 1.4’’HF driver and a 3’’ voice coil. Its B&C driver coupled to a waveguide provides a true cylindrical dispersion. It features a dedicated class D Powersoft amplifier and AUDIOFOCUS OEM DSP treatment (96kHz-40 bits floating point) with 24 presets, one cabinet can reach a peak level of 143 dB SPL (preset 64m).

Main Features include:

  • Multi-functional FOH system
  • For audiences of 200-5000 people
  • True cylindrical dedicated wavefront
  • Sidefill/Outfill for large stages
  • Scalable up to 24 elements
  • Active/Dante/Bi-amp versions

Technical Specification:

  • Drivers: 2 x 8”” LF/MF & 1 x 1,4”” Neo driver - 1 x 3”” HF voice coil & Titanium diaphragm
  • Frequency range: 70 Hz - 19,5 kHz
  • Power capacity (Wrms) Peak power: Wrms: 550 W (LF) / 120 W (HF)Peak power: 900 W (LF) / 800 W (HF)
  • Impedance: 4Ω LF - 8Ω HF (bi-amped)
  • Dispersion (h x v): 110° x 7,5°(average)
  • Sensitivity 1W / 1m (bi-amp): 98 dB (low) - 110 dB (high)
  • SPL max / 1m (measured): Bi-amped: 132 dB
  • Active: 142 dB(1)
  • Connectors: Analog/AES RJ45 audio signal (AES embedded RJ45 IN/OUT)
  • Rigging Angles: Linear & Logarithmic
  • Qty of angles: 20 x 0,5°steps
  • Dimensions (h x w x d): 250 x 645 x 400 mm (including pins)
  • Weight: Bi-amped: 29 kg
  • Active: 30 kg
  • Finish: High resistant Polyurea coating
  • Material: First grade birch plywood 15 & 24 mm
  • Compatible: AF Network Manager, Dante optional

Meyer Sound Ultra-X40


ARES8a HQ is a dual 8’’ enclosure line array with and 1.4’’HF driver and a 3’’ voice coil. Its B&C driver coupled to a waveguide provides a true cylindrical dispersion. It features a dedicated class D Powersoft amplifier and AUDIOFOCUS OEM DSP treatment (96kHz-40 bits floating point) with 24 presets, one cabinet can reach a peak level of 143 dB SPL (preset 64m).

Main Features include:

  • Multi-functional FOH system
  • For audiences of 200-5000 people
  • True cylindrical dedicated wavefront
  • Sidefill/Outfill for large stages
  • Scalable up to 24 elements
  • Active/Dante/Bi-amp versions

Technical Specification:

  • Drivers: 2 x 8”” LF/MF & 1 x 1,4”” Neo driver - 1 x 3”” HF voice coil & Titanium diaphragm
  • Frequency range: 70 Hz - 19,5 kHz
  • Power capacity (Wrms) Peak power: Wrms: 550 W (LF) / 120 W (HF)Peak power: 900 W (LF) / 800 W (HF)
  • Impedance: 4Ω LF - 8Ω HF (bi-amped)
  • Dispersion (h x v): 110° x 7,5°(average)
  • Sensitivity 1W / 1m (bi-amp): 98 dB (low) - 110 dB (high)
  • SPL max / 1m (measured): Bi-amped: 132 dB
  • Active: 142 dB(1)
  • Connectors: Analog/AES RJ45 audio signal (AES embedded RJ45 IN/OUT)
  • Rigging Angles: Linear & Logarithmic
  • Qty of angles: 20 x 0,5°steps
  • Dimensions (h x w x d): 250 x 645 x 400 mm (including pins)
  • Weight: Bi-amped: 29 kg
  • Active: 30 kg
  • Finish: High resistant Polyurea coating
  • Material: First grade birch plywood 15 & 24 mm
  • Compatible: AF Network Manager, Dante optional

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