LIVE SOUND + INSTALLATION

WPL

Optimised Line Array – Three-way, bi-amp line array elementFeatures• High-performance large format line array• All-horn, maximum-efficiency design• Exceptional signature sonic performance• Exemplary 90° horizontal constant directivity pattern control.
• External, dedicated, multi-channel Class D amplification
THE QUEEN’S AWARDSFOR ENTERPRISE:INNOVATION
2021• Scalable resolution for flexible optimisation of coverage,
consistency and control• Industry-leading DISPLAY software interacts with DSP for
highly-accurate array optimisation• Fast, integral 3-point rigging for up to 24 enclosures• Compact and light weight design with discreet side handles
for ease of handling

Applications• Touring sound reinforcement for festivals, stadiumsand arenas• Sports stadium and arena installations• Concert hall and HoW installations
Wavefront Precision systems deliver unmatched soundquality, coverage consistency and control in an affordable
package. Wavefront Precision Longbow (WPL) brings this highperformance and control to large-scale touring and install
applications from stadium concert and outdoor festivals, tohigh-specification arena and House of Worship installations.
WPL is designed as a complete system with external iKON®
multichannel amplifiers, automated DISPLAY™ optimisation
software and VU-NET™ control platform. This guarantees thatWPL arrays perform predictably and effortlessly to their design
maximum, as well as ensuring that they are compatible withother WPL systems throughout the world.
WPL is a full-scale line array which is capable of exceptionallyhigh output for its modest size and weight. A three-way, biamped system, its very high output is achieved by utilising
Martin Audio’s trademark horn-loading technology across all
frequency bands — increasing the acoustic output of the low
frequency section, as well as the midrange and HF.

dispersion pattern translates to an incredibly consistentfrequency response off-axis, with minimal variation from theon-axis response.
The maximum peak outputs of the LF, Mid and HF sections
are 139dB, 140dB and 145dB per enclosure @ 1metre
respectively — ensuring that a WPL array will meet the mostdemanding requirements for throw and clarity in the largest
venues and outdoor events.

It incorporates 2 x 12” (300mm) drivers with Hybrid® horn/reflex loading, 2 x 6.5” (165mm) cone drivers on a midrange
horn which covers the vocal frequency range from 300Hz
to over 4kHz, and 3 x 1” (25mm) exit HF drivers operatingfrom 4kHz upwards. Each section features innovative hornloading techniques and refinements which raise the acoustic
performance of WPL to a superior level — both in terms ofoutput and smooth 90° horizontal coverage patterns of themid and HF horns. Sonically, WPL’s exemplary horizontal

Martin Audio Ltd
Century Point, Halifax Road, High WycombeBuckinghamshire HP12 3SL, England
All information is Copyright © 2021 Martin Audio Ltd.

Benefits• Consistent coverage achieved ‘straight-out-of-the-box’• DISPLAY intelligent software reduces set-up time andeliminates trial-and-error• Improved audience coverage with
reduced sound-spill

Telephone: +44 (0) 1494 535 312
Email: info@martin-audio.com

www.martin-audio.com

LIVE SOUND + INSTALLATION

WPL

Optimised Line Array – Three-way, bi-amp line array element
Technical Specifications
TYPE
FREQUENCY RESPONSE (5)DRIVERSSYSTEM AMPLIFIERSYSTEM RESOLUTIONMAXIMUM SPL (9)NOMINAL IMPEDANCEDISPERSIONCROSSOVERENCLOSURE
FINISHPROTECTIVE GRILLECONECTORSPIN CONNECTIONSFITTINGSFLOWN ARRAY MAXIMUMDIMENSIONS (ex. pins)
WEIGHTACCESSORIES

Three-way, bi-amp line array element
52Hz-18kHz ± 3dB
LF: 2 x 12” (300mm)/3” (75mm) voice coil, ultra-longexcursion, neodymium magnet drivers, Hybrid® bass horn loaded
MF: 2 x 6.5” (165mm)/2” (50mm) coil, neodymium
magnet drivers, horn loaded
HF: 3 x 1” (25mm) exit neodymium magnet
compression drivers, horn loadediKON iK42
1 or 2 enclosures per pair of amplifier channels (Bi-amp)
LF: 139dB
MF: 140dB
HF: 145dB
LF: 8 ohms, MF + HF: 8 ohms
90º horizontal (-6dB), 120º horizontal (-10dB)
7.5° vertical
320Hz active, 4kHz internal passive
Vertical trapezoid with 3.75º wall angle,
multi-laminate birch and poplar-ply construction
Black textured paintBlack HEX perforated steel
2 x NL4 typeLF: 1+/1-, MF + HF: 2+/23-point rigging system
4 x side pocket handles
24 enclosures in single array(W) 1136mm x (H) 371mm x (D) 526mm(W) 44.7in x (H) 14.6in x (D) 20.7in
64kg (141lbs)
Touring flying frame
Install flying frame
Dolly for 4 enclosures
Ground stack outrigger
Flying Pin

THE QUEEN’S AWARDSFOR ENTERPRISE:INNOVATION
2021

Notes
(1) Measured on-axis in half (2pi) space at 2 metres, then referred to 1 metre.
(2) AES Standard ANSI S4.26-1984.
(3) Measured in half (2pi) space at 2 metres with 1 watt input, using band limited pink noise, thenreferred to 1 metre.
(4) Measured in half (2pi) space at 2 metres using band limited pink noise, then referred to 1 metre.
(5) Measured on-axis in open (4pi) space at 2 metres, then referred to 1 metre.
(6) Measured in open (4pi) space at 2 metres with 1 watt input, using band limited pink noise, thenreferred to 1 metre.
(7) Measured in open (4pi) space at 2 metres using band limited pink noise, then referred to 1 metre.
(8) Measured in open (4pi) space at 2 metres with 2.83v input, using band limited pink noise, thenreferred to 1 metre.
(9) Calculated at 1 metre with 6dB crest factor.
(10) Measured in half (2pi) space at 2 metres with 2.83V input, using band limited pink noise, thenreferred to 1 metre.

WPL

Martin Audio Ltd
Century Point, Halifax Road, High Wycombe
Buckinghamshire HP12 3SL, England
All information is Copyright © 2021 Martin Audio Ltd.

Telephone: +44 (0) 1494 535 312
Email: info@martin-audio.com

www.martin-audio.com

LIVE SOUND + INSTALLATION

WPL

Optimised Line Array – Three-way, bi-amp line array element
Technical Specifications
iK42 AmplifierGeneralTYPE
POWER OUTPUTFour-channel Class D amplifier
4 x 5000W into 2 ohms, all channels driven
4 x 3000W into 4 ohms, all channels driven
4 x 1500W into 8 ohms, all channels driven
DIGITAL SIGNAL PROCESSING
96kHz DSP on all inputs and outputs
COOLING
Dual vari-speed fans, front-to-back airflow
MAXIMUM AMBIENT TEMPERATURE 40°C (104°F)
Audio Inputs/Outputs
ANALOGUE IN/LINK (4 CHANNELS) 4 x female, 4 x male Neutrik™ XLRANALOGUE INPUT IMPEDANCE
20kΩ balanced to ground
MAXIMUM ANALOGUE INPUT LEVEL +20dBu
NOMINAL SYSTEM GAIN32dB
AES3 IN/LINK (2 CHANNELS)
1 x female, 1 x male Neutrik™ XLR, balanced
DANTE™ (4 CHANNELS)
2 x shielded RJ45, primary and secondary
AMPLIFIER OUTPUTS
4 x Neutrik Speakon™ NL4Control and Monitoring Network
PROTOCOL
Ethernet
CONTROL APPLICATION
Martin Audio VU-NET™
Power Supply
TYPE
High performance Series Resonant
AC INPUT OPERATING RANGE
85 – 240V ~ AC, 47 - 63Hz
MAINS INRUSH CURRENT
6A at 115V, 12A at 230V (max for <10ms)
MAINS CONNECTOR
Neutrik 32A Powercon™
PhysicalDIMENSIONS(W) 483 x (H) 2U/89mm x (D) 357mm(W) 19in x (H) 2U/3.5in x (D) 14.1inincl handles and optional rear support
WEIGHT12.5kg (27.5lbs)

iK42

Trade Descriptions Act
Due to Martin Audio’s policy of continuing improvement, we reserve the right to alter these specifications without prior notice. Martin Audio is committed to refining state of the art sound reinforcement,
combining in-depth product and field applications research with advanced manufacturing techniques. Every Martin Audio product is built to the highest manufacturing standards and rigorously tested toensure that it meets the performance criteria specified in the design.

Martin Audio Ltd
Century Point, Halifax Road, High Wycombe
Buckinghamshire HP12 3SL, England
All information is Copyright © 2021 Martin Audio Ltd.

Telephone: +44 (0) 1494 535 312
Email: info@martin-audio.com

www.martin-audio.com

LIVE SOUND + INSTALLATION

WPL

Optimised Line Array – Three-way, bi-amp line array element
SPL Comparisons Vs Competitors• The core measurement of SPL is measured differently by manufacturers• Simply put, many competitors now quote figures based upon a crest factor of 4 (12dB peak vs continuous) and often use thehighest sensitivity frequency band (typically HF) to derive their figures given that at LF, where the most power is required, evenlarge amplifiers can’t swing twice the peak output volts demanded by a doubling in crest factor from 2 to 4.
• Martin Audio quotes the AES industry standard crest factor of 2 (6dB peak vs continuous) and we ensure our partnering
amplifiers are capable of delivering the volts and power to achieve our specs.
• Therefore, if people reading specifications do not understand how SPL is measured and the implicationsit would appear
incorrectly that some competitors have significantly higher SPL.
• While absolute comparable data is not available, some element of logic can be applied for the following products to bring amore realistic comparison.

ProductPeak at Crest factor 2 (6dB)

Peak at Crest factor 4 (12dB)

Martin Audio WPL broadband

139 dB*145 dB**

Martin Audio WPL HF band

145dB*

151 dB**

d&B KSL12138 dB**

144dB*

Adamson E12139 dB**

145dB*JBL VTXA12140 dB**

146 dB*

L-Acoustics K2141 dB**

147 dB**Manufacturer quoted**calculated

Martin Audio Ltd
Century Point, Halifax Road, High Wycombe
Buckinghamshire HP12 3SL, England
All information is Copyright © 2021 Martin Audio Ltd.

Telephone: +44 (0) 1494 535 312
Email: info@martin-audio.com

www.martin-audio.com