New Subcompact System Extends JBL Professional’s Industry-Leading VERTEC® Line Array Series

The VT4886 passive line array element and VT4883 cardioid-arrayable subwoofer
are specifically designed for standalone use or integration with other existing VERTEC models.

Delivering predictable coverage characteristics and high output capabilities in an extremely
compact package, JBL Professional is introducing the smallest system enclosures in the
VERTEC® product family, the VT4886 passive 3-way high-directivity line array element
and its companion VT4883 cardioid-arrayable subwoofer. Incorporating innovative
acoustical technologies and purpose-built transducers, they are specifically designed
for standalone use or in conjunction with other existing VERTEC models.

A Variety of Applications

Designed to be one of the most versatile tools in a portable sound rental company’s
inventory, the new VT4886 and VT4883 subcompact models are suitable for use in a
broad range of suspended-array, ground-based andfill speaker applications, with a
comprehensive range of array and suspension accessories planned for the new system.
Application flexibility also ensures that the VT4886/VT4883 system will provide an
effective sound design tool for performance audio facility system designers. Given its
very compact dimensions, the VT4886 is ideal for distributed front fill or under-balcony use.
VT4886 line array elements can also be suspended in large multi-box arrays or
ground-stacked, either standalone or with its companion VT4883 low-frequency extension
for FOH, offstage fill, stereo in-fill, center cluster or delay cluster use.
Mixed VT4883/VT4886 arrays can be suspended and supplemented with additional,
large-format groundstacked VERTEC subwoofers for extended-range FOH use. U-bracket
and pole mount fixtures also enable three to four VT4886 enclosures to be used with a
tripod stand, or an extension rod in coordination with VT4883 subwoofers. Integral
suspension hardware enables the quick, secure assembly of variable-curvature vertical
arrays with adjustable splay angles from 0 to 15 degrees, or modular, constant-curvature
horizontal line arrays, following JBL’s patented, road-proven mechanical design established
with larger models in the VERTEC family.
VT4886 Subcompact Line Array Element

The VT4886 incorporates some of the latest electro-acoustical technologies developed
by JBL Professional. Unique to the subcompact line array category, the VT4886 features
eight transducers with 10 separate voice coils. A proprietary mid/high-frequency
waveguide assembly seamlessly integrates MF and HF section output in a next-generation
implementation of JBL’s patented R.B.I. (Radiation Boundary Integrator®) technology,
providing precise wavefront control and allowing for proper inter-enclosure vertical coupling.
Twin 1”-exit highfrequency compression drivers, equipped with neodymium magnets for the
reliable reproduction of very high frequencies with precise, detailed fidelity, are mounted
on a precision dual-aperture assembly that includes geometric path-length compensation
to ensure optimal twin-driver exit summation.

Each VT4886 also includes a total of four new 2103G 2.5″ midrange transducers with
neodymium magnets, combined with the high-frequency drivers in the new proprietary,
integrated mid/high waveguide assembly.
The midrange transducers utilize JBL’s Thermomaster® technology, paired in thermo-coupled
back-cover heatsink structures for improved heat transfer, which results in reduced power
compression. A pair of new 2166H 6.5″ low-frequency component transducers with dual
neodymium magnets and dual voice coils, incorporating JBL’s patented Differential Drive®
technology, establishes a robust lowfrequency foundation for the VT4886. Each 2166H
low-frequency transducer is matched to a low-frequency diffraction absorber with a
tuned resonant-chamber cavity.
This unique proprietary technology ensures optimal performance even at extremely high
output levels while reducing cabinet edge diffraction effects for improved horizontal coverage
stability.
A highly refined multi-band passive network is designed to minimize insertion loss and
lower distortion while ensuring precise impedance matching between the low, midrange and
high-frequency component sets. With a maximum SPL capability of 131 db continuous,
137 dB peak, the VT4886 has a nominal horizontal coverage of 110 degrees and a frequency
range of 70 Hz – 20 kHz. It measures 577 mm x 197mm x 260 mm (22.7″ x 7.75″ x 10.25″).
The enclosure weighs 15.9 kg (35 lb).
VT4883 Cardioid-Arrayable Subwoofer
The VT4883 companion subwoofer is specifically optimized for use with the VT4886 line array
element, both acoustically and mechanically, in addition to being a suitable complement for
other loudspeaker systems in theVERTEC family. This powerful, highly compact subwoofer is
equipped with rigid internal bracing in a ventedbandpass enclosure topology to support the
high-performance capabilities of its pair of new 2263H-1 12″ longexcursion Differential Drive®
low-frequency components.
The VT4883 is equipped with reverse-arrayable suspension hardware and an auxiliary input
connector on the front grille, making it easily reversible within a group of multiple suspended
or ground-stacked cardioid subwoofer arrays.
The VT4883 has a frequency range of 35 Hz – 600 Hz (-10 dB) and a maximum SPL
capability of 133 dB continuous, 139 dB peak (half space). Dimensions measure
577 mm x 397 mm x 641 mm (22.7″ x 15.6″ x 25.2″). The enclosure weighs 30.8 kg (68 lb).
“Since the VT4886 is a true 3-way system with JBL’s new integrated mid/high waveguide
providing optimized vertical and horizontal wavefront control, system users can expect
better horizontal coverage stability and overall throw compared to other 2-way designs
on the market. And, with 10 voice coils instead of three as found in most other similar
products, the VT4886 has the highest component density in its class and a healthy 3-6 dB
maximum SPL advantage over the competition,” noted Paul Bauman, Director of
Tour Sound Product and Application Engineering, JBL Professional. “Given the VT4886’s
extremely compact size, flexible suspension accessories and application-specific DSP,
I’m excited about the many sound design possibilities that will open up for touring,
corporate AV and fixed installs. I’m also excited about the companion VT4883 sub/low
enclosure, specifically designed for gradient cardioid arraying. This will allow VERTEC system
owners to apply the same cardioid and electronic delay steering techniques to small-
and medium-scale configurations using the VT4883 that our customers have been
successfully implementing in larger scale touring situations using fullsize VERTEC subwoofers.”

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