Subcompact Passive
VT4886 Three-Way High Directivity
Line Array Element
VERTEC® Series
Application:
The VT4886 Subcompact Passive Three-Way Line Array Element is designed to deliver highquality reinforcement of music and speech in a wide variety of applications including concert audio and corporate A/V presentations of all types for both portable users and fixed venue installations.
Key Features:
A true 3-way system, unique to the subcompact category
Highest component density and highest SPL output in its class
Variable curvature vertical (0-15 degrees) or modular, constant curvature horizontal line array
Integrated Mid/High waveguide provides precise vertical wavefront control and optimized 110 degree horizontal dispersion
Four midrange transducers with Thermomaster® cooling and Radiation Boundary Integrator® technology
Low frequency diffraction absorber eliminates cavity resonance and cabinet edge diffraction effects
Flexible installation accessories and dedicated OEM factory presets provide unparalleled application versatility
The VT4886 is a very compact, lightweight enclosure housing two 6.5" low frequency transducers, four 2.5" midrange components and two 1" high frequency compression drivers. Advanced component design and density provide an extremely high power-to- weight ratio with more SPL output than other systems in its class.
A proprietary waveguide seamlessly integrates MF and HF section output in a nextgeneration implementation of JBL’s patented R.B.I. (Radiation Boundary Integrator®) technology, providing precise wavefront control and optimum inter-enclosure coupling. JBL Thermomaster® technology improves heat transfer while reducing mid section power compression. LF transducers feature patented Differential Drive® technology and are matched to a low-frequency diffraction absorber with a tuned resonant-chamber that reduces cavity resonance and cabinet edge diffraction effects. A highly refined passive network minimizes insertion loss while ensuring precise impedance matching between LF, MF and HF sections.
Application flexibility was a key design criterion. Possible uses include: suspended or ground-stacked (standalone or with the companion VT4883 subcompact subwoofer) for FOH, offstage fill, stereo in-fill, center cluster or delay cluster use; suspended with VT4883 enclosures and additional groundstacked VERTEC subwoofers for 4-way FOH use; underbalcony (1-4 enclosures); distributed front fill (1-2 enclosures); modular, constant curvature horizontal line array; downfill use with midor full-sized VERTEC models; pole mounting (tripod-mounted or with optional extension rod for the VT4883). For optimum performance, DSP presets have been specifically engineered for the abovementioned configurations.
Specifications:
System
Frequency Range (-10 dB)1: |
65 Hz - 20 kHz |
Frequency Response (±3 dB)1: |
75 Hz - 18 kHz |
Horizontal Coverage Angle (-6 dB): |
110 degrees nominal (averaged 250 Hz - 16 kHz) |
Vertical Coverage Angle (-6 dB): |
Varies with array size and configuration |
System Input Power Rating2: |
900 W Continuous, 3600 W Peak (AES / 2 hour) |
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700 W Continuous, 2800 W Peak (100 hour) |
Bandpass Nominal Impedance: |
12 ohms (drivers wired in series-parallel, passive network) |
Bandpass Sensitivity3: |
101 dB, 1W / 1m |
Maximum Peak Output4: |
136 dB SPL, 1m |
Recommended Amplification: |
1400-1800 W at 12 ohms (single enclosure) |
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2800-3600 W at 6 ohms (two enclosures in parallel) |
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4200-5400 W at 4 ohms (three enclosures in parallel) |
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5600-7200 W at 3 ohms (four enclosures in parallel) |
Recommended Signal |
Crown® I-Tech HD, Crown I-Tech, dbx® DriveRack® 4800, |
Processing: |
BSS Audio™ FDS-366T Omnidrive™, BSS Audio Soundweb™ London |
Transducers |
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Low Frequency: |
Two 2166H-1, 165 mm (6.5 in) dia., 50 mm (2 in) Dual Coil, Dual Magnet |
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Neodymium Differential Drive®, Direct Cooled™ |
Mid Frequency: |
Four 2103G, 101 mm (2.5 in) with 25.4 mm (1 in) dia. voice coil and |
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Neodymium magnet |
High Frequency: |
Two 2414H, 25 mm (1 in) exit compression driver, Neodymium magnet, |
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38 mm (1.5 in) voice coil |
Enclosure |
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Box Construction: |
Wedge frustum 7.5 degree side angle enclosure, PlyMax™ engineered wood |
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composite structure, DuraFlex™ finish, 2 handles |
Suspension System: |
S.A.F.E. hardware, integral hinge bars nest in suspension tubes on box ends. |
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Quick release pins with restraining lanyards. Set of 4 hinge bars included. |
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Suspend with VT4886-AF Array Frame. |
Grille: |
Black perforated steel, foam backed |
Input Connectors: |
Neutrik® Speakon® NL-8 and NL-4 (2x each) |
Input Selection (Slide Switch): |
Pins 3+/3- (NL8) and 1+/1- (NL4) or, |
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Pins 4+/4- (NL8) and 2+/2- (NL4) |
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Net Weight: |
15.4 kg (34 lb) |
Shipping Weight: |
17.5 kg (38.5 lbs) |
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VT4886-AF |
Array frame for suspension of VT4883, VT4886, or mixed VT4883/VT4886 |
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arrays. Can also be used for ground stacking. |
VT4886-AB |
Adapter bar for attachment of multiple VT4886-AF array frames |
VT4886-UB |
Under-balcony adapter plate, supplied with bolt-on pole mount adapter. Can |
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also be used as a stacking platform for distributed front fill applications. |
VT4886-UB2 |
Basic 2 point U Bracket adapter for suspension of smaller arrays |
SS4-BK2 |
Adjustable extension rod with M20 thread for attachment to VT4883, hand crank |
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height adjustment and patented expanding mandrel system for secure, vibration- |
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free attachment of optional VT4886-UB accessory and up to 3x VT4886 |
VT4886-HB |
Horizontal bracket for arraying VT4886 enclosures as a constant curvature |
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horizontal line array |
VT4886-DF88 |
Downfill Adapter for suspending VT4886 under VT4888 |
VT4886-DF89 |
Downfill Adapter for suspending VT4886 under VT4889 |
Dimensions (H x W x D): |
197 mm x 579 mm x 261 mm |
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(7.8 in x 22.8 in x 10.3 in) |
Optional Accessories |
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1Specified JBL factory-engineered Digital Signal Processing (DSP) is required to achieve specified performance.
2Power rating with shaped pink noise per IEC 268-5 filtered by specified DSP, and calculated based on minimum impedance 60 Hz – 6 kHz.
3Anechoic sensitivity of one enclosure in free-field. Measured with 3.64 Vrms pink noise filtered by specified DSP.
4Calculated maximum SPL based on rated peak power and measured sensitivity
JBL continually engages in research related to product improvement. Some materials, production methods and design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current JBL product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated.
VT4886 Subcompact Passive Three-Way High Directivity Line Array Element
Frequency Response: Horizontal Off-Axis:
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100 |
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90 |
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(dB) |
80 |
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SPL |
70 |
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60 |
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50 |
100 |
1000 |
10000 |
20000 |
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20 |
Frequency (Hz)
Beamwidth:
360
(degrees) |
100 |
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Beamwidth |
10 |
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-6 dB |
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Horizontal |
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Vertical |
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1 |
100 |
1000 |
10000 |
20000 |
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20 |
Frequency (Hz)
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10 |
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0 deg |
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10 deg |
(dB) |
0 |
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20 deg |
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Attenuation |
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30 deg |
-10 |
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40 deg |
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50 deg |
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-20 |
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60 deg |
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70 deg |
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-30 |
100 |
1000 |
10000 |
80 deg |
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20 |
20000 |
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Frequency (Hz) |
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Vertical Off-Axis: |
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10 |
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(dB) |
0 |
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0 deg |
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10 deg |
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Attenuation |
-10 |
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20 deg |
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30 deg |
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-20 |
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40 deg |
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-30 |
100 |
1000 |
10000 |
20000 |
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20 |
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Frequency (Hz)
Directivity Index:
20 |
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100 |
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DirectivityIndex (DI), dB |
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DirectivityFactor (Q) |
10 |
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10 |
0 |
100 |
1000 |
10000 |
1 |
20 |
20000 |
Frequency (Hz)
Measured response of single enclosure at 4m. Frequency response shown with short throw (ST) preset providing nominal flat high frequency response.
5.2 [132]
10.3 [261]
10.0 [255]
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9 |
7.8 [197] |
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7.9 [200] |
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21.2 [540] |
5.2 [132] |
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22.8 [579] |
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Dimensions in inches (mm)
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