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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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Installation Speakers

Clubland Sound

Music is today crucial to the success of a hospitality venue, but it can get overwhelming for a venue owner to wade through all the sound system options available today. This issue focus being Install, PALM technology puts spotlight on some installation speakers that have made their presence felt in some of the most happening pubs, clubs, bars and lounges across India. Weighing in on the right factors during the planning phase could help concoct a solution that engages patrons. This focus is purely for info purpose and only intended as a guide.

Audiocenter PF8+

The Pf8+ is a 2-way passive crossover full range, compact loudspeaker, highly suitable for small scale fixed installation at locations like multi-functional halls, museums, and houses of worship, night clubs, pubs and lounges. In addition, it comprises customized BEYMA HF driver with1.75” voice coil, composite membrane and unique driver protection circuit, and customized BEYMA 8” LF driver with 2” voice coil all with advanced cooling system.

HF horn is manufactured with DMF composite material; ensure very warm and dynamic sound. The coverage angle is (H°×V°) 80°×70°and the horn is 90° rotatable to achieve accurate coverage irrespective of its direction. To ensure stability, consistency and zero consumption, even with very high dynamic sound pressure, American Benelec XPP audio capacitor, iron-core inductor, customized metal resistor and manually soldered fiber board are installed.

The cabinet is constructed with CNC made Russian birch plywood, and is tongue and groove assembly, finished with emery spraying.

Main Features include: • Customized driver from BEYMA
• American Benelec XPP audio capacitor with stable quality, reliable performance
• Manually soldered fiber board to ensure zero consumption even in very high dynamic
• Unique driver protection circuit and high-efficient cooling system of the driver
• DMF composite material HF horn design, coverage angle 90° rotatable
• Solid CNC cabinet made of original Russian birch plywood, exquisite outlook and waterproof enclosure
• Tongue and groove assembly, compact and seamless CNC cabinet design ensures low resonance
• Touring grade emery spraying.
Tech Specifications: Type: 2-way passive crossover full range speaker
Frequency Response (-6dB anechoic chamber): 60 Hz-20 KHz
Rated Power (AES): 200W
Sensitivity: 94dB/1W/1M
Maximum SPL: 123dB
Horizontal Coverage Angle (Symmetrical): 80°
Vertical Coverage Angle (Symmetrical): 70°
LF Driver: Customized BEYMA ferrite driver, 2” voice coil, 200W (AES)
HF Driver: Customized BEYMA ferrite driver, 1” exit, 1.75” voice coil, 50W (AES)
Crossover Point: 2000Hz
Impedance: 8Ω (+1, -1)
1 Way Amplifier: 2pcs maximum, 4Ω
Hanging Hardware’s: M8 screw
Pole Mount: Base hole Φ35mm
Input Connectors: 2×NEUTRIK® NL4MP
Cabinet Material: Russian birch plywood CNC made
Cabinet Color: Black and white available, can be customized according to the RAL code
Dimension (W×H×D): 256×424×274mm
Net Weight: 11.5Kg–


JBL is setting new performance standards by delivering excellence in methodology and tools since 70 years. Its SRX800 series is a fully professional powered PA system comprising three full range and two subwoofer models with an array of features that elevate the SRX800 Series to the best in class of all competitive systems.

SRX815P is the full range 15” two-way, SRX815P features legendary JBL Drivers, proprietary 2,000 Watt Crown amplification, Crown Front-End DriveCore Technology, premium JBL user-configurable DSP, V5 Tunings compatible with Vertec and VTX touring systems, and HiQnet Network control options via iOS and Android applications. Drawing on JBL’s long history of groundbreaking technology and loudspeaker design, the SRX800 Series meets the needs of touring houses, installations, and the most demanding live sound applications ensuring they can deploy a no-compromise, all-in-one solution featuring legendary JBL sound and performance, a wide array of configurability, and compatibility with JBL’s flagship touring systems.

Main Features include: • Purposeful Design: Rugged, Intuitive to Use and Easy to Transport
• JBL Premium Transducers
• Drivecore Amplification By Crown
• Full User Configurable DSP
• Network Control
• JBL Engineered Application Presets
• LCD Screen and Glow in the Dark Ink on Back Panel
• M10 Suspension Points
• Standard 35mm Pole Cup
• Feet for Monitor Angle.
Tech Specifications: System Time: Self-Powered 15”, Two-Way Bass Reflex
Max SPL Output: 137dB
Frequency Range (-10 dB): 36 Hz-21 kHz
Frequency Response (-3 dB): 44 Hz - 20 kHz
Coverage Pattern: 90° x 50°
Amplifier Design: Class D
Power Rating: 2000 W Peak
Dimensions: 691 x 458 x 478 (mm)
(H x W x D): 27.20 x 18.03 x 18.82 (in)
Net Weight: 28.6 kg (63 lb)

KV2 Audio ES Series

This series is a truly scalable, compact and modular system includes ES1.0, ES1.5, ES1.8, ES2.5, ES2.5, ES2.6 range of speakers and subwoofers housed in separate - portable units – the EPAK 2500 and 2500R. Placing the active electronics package outboard results in a lighter, easier to handle and its compact size reduces transport, it is quick and easy to setup, cutting labor costs dramatically.

The ES series ES1.0 Mid/High speaker and the EPAK2500/R make up the core of the amazing sounding, incredibly dynamic ES system. Each ES1.0 requires an EPAK2500/R to power it and the three ways cabinet includes a 12” horn loaded mid bass driver, 6” horn loaded mid speaker, and 1.75” Titanium compression driver. You can rotate the ES 1.0 horn assembly in order to run the system in a vertical or horizontal configuration, and couple two ES1.0 cabinets together horizontally to create a very powerful, long throw solution.

As well as driving the three ways ES1.0 cabinet, a fourth amplifier channel in the EPAK2500/R control unit is dedicated to powering a choice of ES series subwoofers. The ES1.5 is a lightweight single 15” enclosure, the ES1.8 a horn reflex, single 18” subwoofer and the ES2.5 /2.6 a double 15”, twin asymmetrical design, available in either four Ohm (ES2.5) or eight Ohm (ES2.6) versions.

The meticulously designed control electronics inside the EPAK2500/R constantly monitor and preserve the relationship between each amplifier and component, delivering exactly the right amount and type of power throughout the system. When you’re able to perfectly match an amplifier with a transducer you start to unlock incredible performance that is impossible to achieve with passive systems. Total system reliability increases dramatically as does sound quality. With this kind of precision and efficiency built in, you’ll be amazed at the quality, depth, level and resolution produced by an ES system.

Main Features include: • Specifically designed as an extreme high output, compact mid-high enclosure as part of ES systems
• For live performance and music playback
• Small to large live concerts
• Small to medium nightclubs
• Houses of worship
• Portable PA
Tech Specifications for ES2.5: System Acoustic Perfomance
Max SPL Long-term: 134dB
Max SPL Peak: 137dB
-3dB Response: 38Hz to 130Hz
-10dB Response: 34Hz to 130Hz
Crossover Point: 130Hz
Low Frequency Section
Acoustic Design: Twin Asymmetrical loading
Number of drivers: 2
Subwoofer Amplifier Requirement: 1600W / ES2.5 from EPAK2500/R
Woofer Size / Voice Coil Diameter / Design: 15” / 4” / Inside Outside
Diaphragm Material: Epoxy Reinforced Cellulose
Magnet Type: Ferrite
Speaker Input
Speaker Input: AP4
Cabinet Material:
Baltic birch
Handles: 4
Pole Mount: M20
Color: “Orange peeled” Matt Black or any RAL
Physical Dimensions
Height 600 mm (23.62”)
Width 700 mm (27.55”)
Depth 750 mm (29.52”)
Weight 69 kg (151.8lbs)


The TRS-112 cabinet is specifically designed as a floor monitor including all other potential applications making this a truly multipurpose loudspeaker. Comprising symmetrical wall angles due to which it can be also used as a double wedge without needing dedicated left or right versions. This is a well braced, rugged cabinet with a long life span making it an ideal addition to any rental company stock giving a high and quick return on your investment.

TRS-112 uses a single Ohm 12″ with 2.5″ voice coil driver unit with 1″ compression driver mounted on a custom design 90°(h) x 40°(v) horn. The performer is able to move freely in the extended sweet spot, even all the way to the monitor, made possible by the 45° baffle angle along with the 90° x 40° horn. These passively crossed over at 1.5 kHz Phase and impedance corrected crossover networks are designed for high power applications. Used with the TRS-218 Subwoofer the TRS-112 can provide high SPL levels for front of house, sidefill and other applications. The rear mounted backplate has two speakon connectors aligned at 45 degrees and recessed to minimise the risk of damage when used in stage applications. The monitor is fitted with feet on both sidewalls allowing the cabinet to be used for right or left hand monitoring. Fitted with 6 mounting point’s gives versatility to the cabinet when used for install purposes.

Main features include: • UK made Ohm 12″ driver
• True multipurpose cabinet
• Voicing designed for vocal presence
Tech Specifications: Design: 12”Full Range Cabinet/Monitor, Reflex Tuning
Impedance: 8 Ohm
Power Handling (AES): 300 Watts (continuous)
Max. Power Handling (AES): 600 Watts (program), 1200 Watts (peak10ms)
Sensitivity 2.83V / 1m: 100 dB
Max. SPL: 124 dB (cont. max SPL / 1m) 130 dB peak
Frequency Response ±3 dB: 83 Hz – 19 kHz
Dispersion: 90° x 40°
Recommended Amplification: 300 - 600 Watts
System Controller: Ohm DSP Solutions, only HPF required
Speaker Cables: Min 2 x 2.5 mm2, Preferred 2 x 4 mm2
Components: 1 x 12” Low Frequency Driver, 1 x 1” Horn loaded Compression Driver
Crossover: Passive
Connectors: 2 x 4 pole Speakon Connectors

Outline EIDOS 218 S

As a leading manufacturing brand of premier sound reinforcement systems outline lounged all-new design, compliments the existing EDIOS installation range by providing a unit whose low-frequency extension and power handling capabilities exceed those of the dual-15″ EIDOS 215 S module; ideal for applications requiring super-powerful sub bass delivery, including live music and dance venues.

The EIDOS 218 S is particularly well-suited to reproducing modern dance music as the design provides extended low-frequency reproduction (down to 28 Hz) with tremendous ‘punch’ in and around the frequencies normally produced by real and synthetic bass drums. This focus and clarity enhances the reproduction of program material and makes the most efficient use of amplifier power.

This is a result of Outline’s proprietary ‘E.R.P.’ (‘Energy Retentive Porting’) design. Based on the principles of fluid dynamics and successfully applied to the science of controlling pneumatic forces within a loudspeaker enclosure, this unique arrangement of specially-shaped ports ensures an optimum laminar airflow. This reduces internal turbulence, maximizing the efficiency of the transducers and thus allowing more amplifier power to be converted into acoustic energy. Such a design requires high-precision manufacturing techniques, and Outline’s engineering teams have applied some original production techniques to turn an exciting concept into a physical reality.

Main features include: • Highly efficient, powerful low-frequency loudspeaker fitted with two 18″ transducers
• Exceptional size-to-power ratio (148.5 dB SPL short-term peak @ 1 m) facilitates location
• Proprietary Outline design provides tremendous ‘punch’
• Outline ‘E.R.P.’ (‘Energy Retentive Porting’) design assists airflow and enhances transducer efficiency
• Finished with Polyurea, featuring amazing durability and superior physical properties
• Design file for Outline ‘Openarray’ 3D acoustic simulation software
• Conceived, designed and manufactured exclusively in Italy (as are all Outline products).
Tech Specifications: Frequency Response (-10 dB): 28 Hz – 250 Hz
Suggested Cross-Over: max 120 Hz
Nominal Dispersion: Quasi-Omni directional
Impedance (Nom/Min): 2 x 8 Ω / 2 x 5.5 Ω
Watt AES (Continuous/Peak): 2 x 1200 W / 2 x 4800 W
Maximum SPL Output *: 148.5 dB SPL
Component: 2 x 18″ direct radiation woofers
Connectors: 2 x NL4 Pins 1+/1-, 2+/2-
Cabinet Material: Baltic birch plywood
Cabinet Finish: Black polyurea coating
Grill: Epoxy powder coated
Installation Points: 16 x M8 threaded points
Pole Mount: M20 threaded point
Height: 570 mm – 22 4/8″
Width: 1140 mm – 44 7/8″
Depth: 730 mm – 28 6/8″
Weight: 85 kg – 187.4 lb

Wharfdale Programme Series

This Series of loudspeakers includes range of Programme 30E/30ET, 35E/35ET, 105E/105ET, 205/205ET, 206E/206ET, 108E/108ET, 406/406ET and Programmesub as subwoofer companion. The discreet and stylish appearances of the Programme series are designed to seamlessly integrate into any architectural environment; deliver accurate, high power sound in a lightweight, compact and easy to install package. Frequency response has been optimized to be smooth and natural across the vocal range for high intelligibility in difficult environments, while retaining the neutral and uncoloured sound essential for unobtrusive reproduction of background music.

Each Programme Series speaker may also be used in constant voltage distributed systems. With an internal, switchable transformer, you can economically install background music or paging system, while still only using one amplifier. With the included mounting brackets, transformer option, you will be impressed with the ease of wall or ceiling mounting as well as the clear, accurate sound produced by these speakers.

Main Features include: • 2-way installation speaker systems
• Mylar, silk and titanium HF drivers used across range
• Low distortion, high power woofers
• High strength
• M6 or M8 high hanging points
• Speakon, parallel spring crimp and barrier strip inputs
• Supplied with adjustable heavy duty steel bracket
• Models available with 70v/100v Transformer (‘T’ model)
• For venues including houses of worship, retail shops and other public areas
• White finishes also available
Tech Specifications of Programme 406T: Type: 2 – way
Frequency Response: 60Hz-20KHz
Continuous Power: 250W
Peak Power: 1000W
Sensitivity dB-SPL (1W @1M): 96dB
Max SPL: 126dB
Impedance: 8 ohm
Dispersion angle (degrees): 60 x 60
LF driver: 6.5” x 4
HF driver: 1” Titanium
HF protection type: compression driver Pro-tect (BULB)
Crossover Point: 2.3KHZ
Enclosure shape: Trapezoidal
Dimensions HxWxD (mm): 980 x 215 x 275
Weight (kg): 17.8Kg
Finish colour: Black/ white Paint
Grille : MDF Black/ white full (steel)
Rigging: M8 x 18
Input Connectors: 2 x Speakon + barrier strip
Input Connectors (T): barrier strip
Transformer (T) : 100V/70V
Transformer Taps (70v): 15,30,60,120W
Transformer Taps (100v): 15,30,60,120W
Included accessory: black/white bracket