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SECTOR SPOTLIGHT: Stage wedges

Andrew Low
Oct 15

With the advent of wireless IEM systems one would think that stage wedges have become a thing of the past. However, it seems that the days of wedges are here to stay as new monitors with digital technology and enhanced components are released at each new tradeshow.

Adamson M12
Released at this year’s Prolight+Sound, Adamson’s new lightweight M12 monitor is a low profile stage wedge designed for optimised gain before feedback, precise pattern control and high output with low distortion.

The M12s symmetrical trapezoid design and 65-degree conical waveguide allow any two cabinets to operate as a mirrored pair. It also features the ND12L, Adamson’s first lightweight, long-excursion 12-inch Kevlar Neodymium driver designed for premium power handling and mid frequency response. Adamson is boasting that the ND12L exhibits remarkably low distortion due to the qualities of its multilayer Kevlar cone combined with Advanced Cone Architecture, a proprietary technology that increases the linearized mid-range response by reducing the radial and chaotic modes in the driver’s passband. The Kevlar cone design also maintains durability in the wet and is well suited for outdoor events.

The M12’s HF section features a lightweight three-inch diaphragm, 1.4-inch exit neodymium driver, fitted with an Adamson waveguide. Its dimensions are 8 x 25.125 x 11-inches.
www.adamsonsystems.com

DB Technologies DVX DM15
The DVX DM15 is a low-profile stage monitor with an unobtrusive design for sound reinforcement applications that require low-end performance without the addition of  extra subwoofers.

The monitor features RCF’s 15-inch neodymium woofer, a 3.5-inch voice coil and a 1.4-inch neodymium compression driver coupled to an aluminum CD horn. These elements were incorporated to provide accurate response across the full voice range.

The monitor is also paired with high-output Digipro digital power amps in a bi-amped configuration. An onboard controller manages the entire system, serving as an active equalizer, active crossover with phase and time alignment and a limiter. The DSP also offers switchable system presets that adapt the monitor’s performance to suit the given application at hand.

With a Max SPL of 132 dB, the DM15 features a 40 x 60-degree aluminium CD horn. It is powered by a Class-D 250 W/RMS amp for HFs and a Class-D 500 W/RMS for LFs.
www.dbtechnologies.com

Funktion One RM18
Funktion One's new RM18 was also launched at Prolight+Sound 09. The triple concentric stage monitor is listed as a radical departure from the standard 15-inch and compression driver configuration. As such, Funktion One is claims that the RM18 is capable of delivering a significant performance advantage over conventional monitors. Its triple concentric arrangement comprises an 18-inch driver with five-inch coil and neodymium magnet and an additional five-inch driver with a built-in HF compression driver passively crossed-over at 9kHz.

The 700Hz crossover point and the natural materials used in RM18’s mid-device are integrated to provide clarity and definition to the vocal range. The bass response of the 18-inch driver also makes it well suited as a drum monitor. The design of the driver is such that the RM18 does not require built-in eq correction, leaving the enclosure phase coherent with lots of headroom. Its conical dispersion is 70-degrees, with the enclosure measuring 17-inches high by 30 wide and 20 inches deep, while weighing in at 35kg.
www.funktion-one.com

HK Audio CT 115
HK Audio’s CT 115 has been part of the stage monitoring system at Glastonbury’s John Peel Stage for two years running. This year the stage employed 18 of the 15-inch CT 115 cabinets in biamp-mode, powered by DSM 2060 controllers and Lab.gruppen FP 10000 power amps.

Bruce Springsteen used the HK monitors when he jumped on stage for a short impromptu session with the band Gas Light Anthem. Echo and the Bunnymen, The Wombats, White Lies, Jarvis Cocker and Doves also used the CT 115s throughout the weekend.

Part of HK Audio’s Contour series of concert loudspeakers, the CT 115 comprises a 15-inch neodymium low/mid woofer and a 1.4-inch HF driver with a three-inch voice coil. Its coverage is 60 by 40-degrees with a crossover frequency of 12dB/octave and crossover modes including bi-amp and passive.
www.hkaudio.com

JBL VRX915M
The JBL VRX915M is a dedicated, compact and lightweight 15-inch two-way touring-class floor monitor, with only a 14-inch stage height and JBL’s latest neodymium-magnet transducers. It can be operated in passive or biamp mode and has a maximum SPL of 127dB.

Active tunings for many processors, including dbx, BSS and Lake can be downloaded from JBL’s website.

Low frequencies are handled by the monitors 15-inch JBL 2265HPL differential drive woofer, while HFs are broadcasted by a four-inch JBL 2452H a 1.5 exit and a neodymium magnet compression driver. Its coverage pattern is 50 by 90-degrees, nominal. It also features passive/bi-amp crossover modes and a crossover frequency of 1.1 kHz.

The dimensions of VRX915M are 24.75 high by 17 wide and 12.75 deep with a weight of 46 lbs.
www.jblpro.com

OHM TRS-115
With the help of Ohm’s TRS-115 monitor, Britannia Stadium, the home to Stoke City Football Club, has been named the loudest stadium in the UK by the audio tech team of Sky+HD – and that’s without the sound system.

With a capacity of only 28,383, the fans still out-cheer the likes of huge clubs like Arsenal and Manchester United. British loudspeaker manufacturer, Ohm has supplied the field with 24 of its TRS-115 monitors to broadcast the announcers throughout the stadium. The TRS-15 is from Ohm’s touring line and features and a 15-inch with three-inch voice coil bass driver and a half-inch compression driver mounted on a 60 by 40-degree horn flare.

The design of the cabinet allows it to be used as a full range system or within a two-way system as the mid/highs for a sub/sat system. Applications include stage monitors and front of house.
www.ohm.co.uk

VMB’s ADP-15M
VMB’s new ADP-15M is an active stage monitor that incorporates an internal DSP. It is a high output 130dB monitor powered by 1500W class D amplification (1000W for the low frequencies and 500W for the driver) and uses a 15-inch neodymium woofer and a 1.4-inch compression driver while weighing only 27kg.

The company is boasting that the coaxial ADP-15M provides a virtually flat phase response and enables various monitors configured in stereo to achieve greater coherence. Its 60Hz to 20KHz frequency response reduces the need for eq filters and an LCD screen enables the user to change between different configurations without the need for an external processor. The power module can also be turned 180-degrees to provide clean connection cable placement. Optional Ethernet provides information on temperature of the hottest power module and input levels.
www.vmb.es

RCF TT45-SMA
RCF boasts that its TT45-SMA monitor has flat amplitude response, extended bass reproduction and premium output. Its cabinet angle and 90 by 40-degree uniform directivity is designed to work in pairs for tour grade monitoring.

Featuring 1,500W digital amplification power with integrated onboard signal processing and transducer protections, TT45-SMA’s low frequency section comprises two 12-inch high power neodymium vented woofers. The two transducers are driven in parallel, while in its low midrange frequency region only one of the two transducers is driven in order to avoid side cancellations. Clever stuff.

A new three-inch diaphragm compression driver with a 1.4-inch exit throat deliver natural midrange and high frequency. The diaphragm is precision formed from pure titanium, the suspension is based on a vented and damped design in order to provide very low distortion.

The TT45-SMA is powered by a 1,500W digital two-way amplifier: 1000W for the two 12-inch woofers and 500W drive the three-inch voice coil horn loaded driver. The input board features a special switch to align the curve response equalisation for use of the speaker system in pairs.
www.rcf.it

EV Xw15A
EV’s Xw15A is a two-way, 15-inch floor monitor featuring its ND6 three-inch Titanium HF compression driver with neodymium motor. A member of the company’s X-Array family, the monitor has a max SPL of 135dB and a nominal coverage of 55 by 80-degree. It features an LF woofer  with a 15-inch transducer and a 1.4-inch HF transducer.
www.electrovoice.com

APG SMX15
The SMX15 stage monitor is the latest product in the APG’s Dispersion series of multi-purpose loudspeakers. It is based on coaxial technology to provide a coherent conical acoustic field and was designed for applications requiring a combination of sonic accuracy and very high SPLs down to low frequencies.

This new loudspeaker takes advantage of a proprietary technique of forced thermal transfer, which reduces thermal compression effects, resulting in optimised sound pressure capacity down to 60Hz. The low frequency section uses a new generation neodymium 15-inch cone speaker mounted in a ported enclosure, while the high frequency section uses a neodymium compression driver with low distortion and frequency extension up to 20kHz.
 
The ergonomics of the SMX15 enable it to be tilted at five different angles. Each position offers the lowest possible profile. Three integrated handles ensure straightforward lifting and handling. There is also an optional rigging system. Applications include everything from traditional stage monitoring at FOH, or in clubs, bars and other small installations to TV applications as well as side-fill or drum-fill.
www.apg.tm.fr

EAW MW15 Microwedge
The MW15 features a coaxial driver arrangement that pairs a 15-inch woofer with a three-inch HF compression driver on a horn, which provides a 90-degree horizontal dispersion. The MW15 is processor-enhanced (rather than processor-dependant) for plug and play operation. It is also offered in  switchable passive or active modes.
www.eaw.com

Synco CW152
Synco’s CW152 monitor was developed with the input of a team of experienced monitor engineers and technicians from around the world. The two-way active CW-152 wedge offers point source performance due to its coaxial design, which ensures proper signal alignment and constant directivity and Q through crossover. Synco states that this unique design feather enables the CW152 to provide tonal balance and resolution not attainable from any other design.

The Synco monitor provides a maximum SPL of 132dB. Its HF driver is a CD2-8, two-inch driver and its LF driver is a 15-inch woofer.
www.synco-network.com

Peavey QW Monitor
The Peavey QW monitor features a 15-inch Pro Rider woofer with a Kevlar impregnated, water-resistant treated cone and dust cap for environmental stability. Its four-inch 44XT compression driver handles the high frequencies and features the Radialinear Planar phase correction system, while its CH-6 conical constant directivity horn provides an even 60-degree coverage in all directions.
www.peavey.com

Martin Audio LE1500S
The Martin Audio LE1500S is a compact, high performance stage monitor combining high output and controlled dispersion with discreet, contemporary design. It features a high specification 15-inch low frequency drive unit and a 1.4-inch exit compression driver mounted on a differential dispersion horn. This dispersion technology increases the area over which a constant SPL and consistent frequency response is maintained at ear height
www.martin-audio.com

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