- Description
Details
The VT4887A Compact Bi-Amplified 3-Way High Directivity Line Array Element designed to deliver high-quality reinforcement of music and speech in a variety of applications including concert audio and corporate A/V presentations of all types. The VT4887A is a rugged, compact and lightweight enclosure housing two 8" woofers, four 4" midrange radiators, and two high frequency compression drivers. VERTEC’s advanced components provide an extremely high power-to-weight ratio. Enclosure features foam-backed low frequency grilles, dense protective foam inserts for midrange apertures and fine steel mesh grille to protect high-frequency apertures. Speaker cones are treated with weather-resistant compounds.
VERTEC arrays are rigid for maximum support strength, yet flexible in design and application. The VT4887A’s suspension hardware relies on quick-release pins and end-mounted metal tubes to couple adjacent VT4887A’s together. Rigging tubes made of hard-black anodized 6061-T6 Aluminum. Hinge bars made from premium-grade chromoly alloy steel with epoxy powder coating over plated surfaces.
Plated hinge pins and stainless steel quick release pin lanyards to resist corrosion and weather damage. Enclosure ships with integral front and rear hinge bar set. Protective grille cover/wheel board and soft cover ensure handy transport for rough road conditions, (purchased separately as VT4887-ACC).- Features
Features
- Advanced technology components
- Differential Drive®
- Neodymium magnet
- Dual voice coil
- Direct Cooled™ cone transducers for low weight and high output
- Waveguide units couple to create precision HF vertical slot aperture
- Radiation Boundary Integrator® (RBI): Patented technology integrates output of individual bandpass elements
- Advanced construction techniques and hybrid materials provide exceptionally rigid, lightweight enclosure construction
- Rugged DuraFlex exterior finish; weatherized components
- Patented, integrated S.A.F.E. suspension system: premium heat-treated alloys provide high-strength, reliable hanging arrays
- Pre-engineered to accept optional JBL DrivePack® amplified electronics package
- Rear-panel mechanical attachments and electrical connections ensure upgrade path to self-powered system
- For use in stand-alone arrays or in combination with other VERTEC DP SERIES system products
- Specification
Frequency Range (-10 dB) 55 Hz – 22 kHz Frequency Response (+/- 3 dB) 67 Hz – 20 kHz Horizontal Coverage Angle (-6 dB) 100 degrees nominal (500 Hz – 16 kHz) Vertical Coverage Angle (-6 dB) Varies with array size and configuration System Input Power Rating LF: 1000W Continuous, 4000W Peak (AES/2 hour), MF/HF: 225W Continuous, 900W Peak (AES/2 hour) Maximum Peak Output 131 to 141 dB SPL, 1m (frequency/bandpass dependent) Recommended Amplification LF: 1000–2000W into 8 ohms MF/HF: 450–900W into 8 ohms Recommended Signal Processing dbx® 4800, Crown® I-Tech, BSS FDS-366T, and other Digital System Controllers supported Low Frequency Two 2168J-1, 203 mm (8 in) dia., 76 mm(3 in) Dual Coil, Neodymium Differential Drive®, Direct Coole Bandpass Nominal Impedance 8 ohms (16 ohms each transducer, wired in parallel) Input Power Rating 1000W Continuous, 4000W Peak (AES/2 hour) 700W Continuous, 2800W Peak (100 hour) Bandpass Sensitivity 97 dB, 1W / 1m (2.83 Vrms at 3.3 ft) Mid & High Frequency MID: Four 2104H, 101 mm (4 in) with 25.4 mm (1 in) dia. voice coil Mid & High Frequency: HIGH: Two 2408H, 25 mm (1 in) exit compression driver, 38 mm (1.5 in) voice coil Bandpass Nominal Impedance 8 ohms (drivers wired in series-parallel, passive network) Input Power Rating2 225W Continuous, 900W Peak (100 hour) Bandpass Sensitivity 103 dB, 1W / 1m (2.83 Vrms at 3.3 ft) Box Construction Wedge frustum 5 degree side angle enclosure. PlyMax® engineered wood composite structure Suspension System S.A.F.E. hardware, integral hinge bars nest in rigging tubes on box ends Grille Black perforated steel, foam backed Input Connectors Neutrik® Speakon® NL-8 and NL-4 (2x each), Pin 3+/- forLows & Pin 4+/- for Mid-Highs Dimensions (H x W x D) 11" (281 mm) x 31" (787 mm) x 16.3" (415 mm) Net Weight 67 lbs (30.4 kg) Shipping Weight 90 lbs (40.8 kg) - Reviews
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