EVC-1122-VI EN54

12" speaker, vari-intense indoor en54

Summary & Images Specs Where to buy Downloads & Support
  • EN 54 EVAC certified for emergency voice alarm – adds to EV’s portfolio of full-fidelity EN 54 loudspeaker system solutions
  • 12” two-way loudspeaker with asymmetrical horn uniformly covers a defined rectangular area
  • High quality transformer and patented Automatic Saturation Control (ASC) preserve low-frequency response over 70 V / 100 V lines for any number of loudspeakers
  • Power rating: 150 W Continuous, (600 W Peak)

The EVC-1122-VI EN54 is a unique offering that is constructed in a variable-intensity (VI) configuration. In a variable intensity loudspeaker, the downward angle of the front-facing woofer and the asymmetrical wave guide work together to evenly cover a clearly defined, rectangular audience area with a single loudspeaker system.

The size of the coverage area is determined by the mounting height and the vertical mounting angle of the loudspeaker. The advantage of the VI approach is that there is reduced variation in sound level from the front to the back of the audience, compared to typical point source solutions. In most situations, the change is so gradual that the sound level will seem almost constant as you walk the coverage pattern. The EVC-1122-VI EN54 delivers clear, articulate speech reproduction but, in addition, is an excellent choice for foreground music applications.

The high frequency section of the EVC-1122-VI EN54 loudspeaker comprises a single 1¼-inch pure titanium dome compression driver directly coupled to a compound waveguide that combines long-throw and short-throw behavior in a single acoustical device. This unique waveguide creates uniform pattern control and smooth, linear response.

The low frequency section employs a high-output woofer that was developed using state-of-the-art, computer-aided optimization to provide low distortion, high efficiency, and maximum intelligibility at high sound pressure levels. The passive crossover implements a fourth-order Linkwitz Riley design with slopes of 24 dB per octave for smooth off-axis response and improved definition through the critical vocal range.

The enclosures are constructed of high-grade plywood and finished with EVCoat for enhanced durability. The EVC-1122-VI EN54 has been designed with three M10 rigging points as well as attachment points for an optional Ubracket that can be mounted to the ceiling or the wall behind the loudspeaker. Input connectors accept wire gauges up to 10 AWG (5.26 sq mm).

EN-54 versions of EVC loudspeakers ship with the high quality Electro-Voice TK-150 audio transformer preinstalled. The TK-150 works in conjunction with EV's patented Automatic Saturation Compensation (ASC), which preserves low frequency performance while presenting a stable load to the amplifier regardless of how many loudspeakers are connected in parallel.


Frequency response (-3 dB)  70 Hz - 20 kHz
Frequency range (-10 dB) 50 Hz - 25 kHz
Rec. high-pass frequency 50 Hz

Passive crossover frequency 1.6 kHz
Axial sensitivity1 79 dB (1 W/4 m)
MAX SPL 100.5 dB1
Power handling2 150 W (Continuous), 600 W Peak
LF transducer EVS-12M
HF transducer DH-3
Connectors Dual four-pin 10 AWG Phoenix/
Euro Block screw-terminals
Enclosure 15-mm plywood with EVCoat
Grille 18 GA powder-coated steel with rotatable logo
Environmental INDOOR ONLY
Suspension (8) M10 suspension points
Color Black or white
Dimensions (H x W x D) 528 mm x 411 mm x 648 mm (20.78 in x 16.18 in x 25.50 in)
Net weight 24.1 kg (53.1 lb)
Shipping weight 26.8 kg (59.1 lb)


Where to Buy

Install Sound Partners

    * Call for availability


    Warranty & After Sales Programs

    Similar Products

    sprites_global sprites_ev