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JBL VT4888 - 12 pack w/amps


Other Details

North America & Europe
Limited warranty

Used VT4888 enclosures and the Crown amps are in very good condition. Units have been serviced and maintained by authorized trained technicians. 

  • (12)  VT4888
  • (02) VT4880
  • (08)  Crown i-Tech 4000 in racks
  • Frames
  • Cable, Carts and Covers

For inquiries contact


JBL’s VT4888 built with high-powered, lightweight transducers, coupled to JBL's proven line array technology, is at the heart of VERTEC technology and is a direct response to the rental sound industry's demand for reduced system size and complexity while simultaneously delivering highly advanced performance. Rugged, integral array suspension hardware ensures fast, reliable setups and takedowns. For maximum inventory flexibility, most models are pre-engineered to accept the JBL DrivePack® amplifier modules with integral signal processing. These array elements – available in standard (unpowered) versions or as the VERTEC DP Series Powered Loudspeaker Systems - are ready to meet whatever system format your business operations and clients demand. The VT4888 is 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.


  • Advanced technology components: Differential Drive®, neodymium magnet, dual voice coil, Direct Cooled cone transducers for low weight and high output.
  • Direct Cooled™ cone transducers for low weight and high output.
  • HF Waveguide units couple to create precision vertical slot aperture.
  • Radiation Boundary Integrator® (RBI): Patented technology integrates output of individual bandpass elements.
  • Advanced construction techniques using PlyMax® 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® system models.

Crown I-Tech 4000 Amplifier

The Crown I-T4000 is a two-channel power amplifier designed for professional touring sound or fixed installation use. The unique hybrid design of the I-T4000 melds the high power, high output voltage, and clean transient response of a huge, heavy, old-school power amp, with onboard programmable DSP dynamics processing, computer networking capability, digital connectivity, and 24-bit/96 kHz A/D - D/A converters. All of which is packed into a lightweight 2 RU chassis of aluminum construction, weighing only 28 lbs. The rear panel of the I-T4000 is largely devoted to color-coded connector groups, all separately grouped and clearly labeled, which certainly simplifies the setup process.

 Crown Features

  • Global Power Supply – designed to deliver maximum power no matter where your schedule takes you
  • Studio Quality Processing – integrated processing reduces DSP noise for a quieter overall system
  • Peak voltage and RMS power limiting protects your speaker investment
  • Front panel LCD provides diagnostics and preset selection to ensure fast and easy system setup
  • Front panel lockout – ensures that tunings and presets are safely stored and protected from curious users
  • Remote monitoring and control for complete system control anywhere in the venue

VT4888 Data

Frequency Range

40 Hz - 18 kHz (-10 dB):

Frequency Response

60 Hz - 16 kHz (± 3 dB)

Continuous Power Rating

2000W LF
600W MF, 150W HF


98 dB LF, 102 dB MF, 114 dB HF (1W/1m)

Nominal Impedances

2 x 8 ohms LF, 8 ohms MF, 16 ohms HF

Horizontal Coverage


90 degrees nominal,
250 Hz - 16 kHz (-6dB)


Dimensions (W x H x D)

990.6 mm x 355.6 mm x 508 m
(39 in x 14 in x 20 in)


51.3 kg (113 lb)

Crown I-Tech 4000 Data

Input Sensitivity (volts RMS)

for rated output

Adjustable in 0.1V steps from 1.4V to 7.75V

Voltage Gain for full rated power

at 8 ohms

37.1 dB to 22.2 dB

Frequency Response

(at 1 watt, 20Hz - 20 kHz)

± 0.25 dB

Signal to Noise Ratio below rated

full-bandwidth power, A-weighted

> 105 dB

Total Harmonic Distortion (THD)

at full rated power

< 0.35%

Intermodulation Distortion (IMD)

60 Hz and 7 kHz at 4:1,

from full rated output to –35 dB

< 0.35%

Maximum Input Level

+15 dBu or +21 dBu, depending on setting of maximum input level

Latency (analog, digital inputs)


1.13 mS.

A/D, D/A Converters

24-bit 96 kHz Cirrus Logic

Digital Input

AES/EBU, 24-bit, 32-96 kHz. Onboard sample rate converter.


Onboard HiQnet and TCP/IQ, compatible with standard 100Mb Ethernet hardware


24-bit conversion with 32-bit, floating-point DSP processing


Speed-sensitive rotary encoders, 0.5 dB steps, range 0 to –100 dB

Damping Factor (8 ohms)

20 Hz to 100 Hz: > 5000

Crosstalk (below rated power,

20 Hz to 1 kHz)

> 80 dB

Common Mode Rejection (CMR)

(20 Hz to 1 kHz)

> 50 dB

DC Output Offset (Shorted input)

< ± 3 mV

Input Impedance (nominal)

20 kilohms balanced, 10 kilohms unbalanced


1-2-4-8-16 ohms

Bridge Mono

2-4-8 ohms

Required AC Mains

Universal AC input, 100-240VAC (±15%), 50/60 Hz. Max. AC mains voltage 277VAC

 VT4888 Schematic


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Other Details

North America & Europe
Limited warranty

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