JBL 4893A, DSC280, 4891A, 4892A, 4890A User Manual

JBL Professional
8500 Balboa Boulevard, Northridge, CA 91329
[phone]
www.jblpro.com

CAT ARRAY 2000

2/00/15M

©2000 JBL Professional

SPECIFICATIONS

ARRAY SERIES 4890A,4891A 4892A,4892A-90 4893A 4894A,4894A-90

Frequency Response (±3 dB)1: 70 Hz - 18 kHz 50 Hz - 18 kHz 38 Hz - 400 Hz 46 Hz - 18 kHz

Sensitivity: 98 dB (1 W, 1m) 98 dB (1 W, 1m) 98 dB (1 W, 1m) 100 dB (1 W, 1m)

Recommended Amplifier Power2:

High Frequency: 300 W at 8 ohms 300 W at 8 ohms N/A 300 W at 8 ohms

Low Frequency: 600 W at 8 ohms 600 W at 8 ohms 600 W at 8 ohms each transducer, 1200 W total 600 W at 8 ohms each transducer (x2)

Nominal Coverage: 4890A: 60° horizontal, 40° vertical or 40° horizontal, 60° vertical 4892A: 45° horizontal, 35° vertical Array Dependent 4894A: 45° horizontal, 35° vertical

4891A: 60° horizontal, 40° vertical 4892A-90: 90° horizontal, 35° vertical 4894A-90: 90° horizontal, 35° vertical

LOW FREQUENCY TRANSDUCERS:

Nominal Diameter: 355 mm (14 in) 355 mm (14 in) (Two) 355 mm (14 in) (Two) 355 mm (14 in)

Nominal Impedance: 8 ohms 8 ohms Two Transducers with separate pinouts, 8 ohms each Two Transducers with separate pinouts, 8 ohms each

Power Rating: 600 W AES, 50 Hz to 500 Hz, 2400 W peak 600 W AES, 50 Hz to 500 Hz, 2400 W peak 600 W AES, each transducer 50 Hz to 500 Hz, 600 W AES, 50 Hz to 500 Hz, 2400 W peak

1200 W AES total system; 2400 W peak each 1200 W AES total system; 2400 W peak each

transducer, 4800 W peak total system transducer, 4800 W peak total system

HIGH FREQUENCY TRANSDUCER:

Throat Diameter: 38 mm (1 1/2 in) exit 38 mm (1 1/2 in) exit N/A 38 mm (1 1/2 in) exit

Nominal Impedance: 8 ohms 8 ohms N/A 8 ohms

Power Rating: 75 W AES, 1 kHz to 10 kHz, 300 W peak 75 W AES, 1 kHz to 10 kHz, 300 W peak N/A 75 W AES, 1 kHz to 10 kHz, 300 W peak

HIGH FREQUENCY HORN:

Type: Optimized Aperture Flat-Front Bi-Radial®, die cast aluminum Optimized Aperture Flat-Front Bi-Radial® N/A Optimized Aperture Flat-Front Bi-Radial®

ENCLOSURE:

Flying System: None S.A.F.E. - JBL proprietary, modular, certified S.A.F.E. - JBL proprietary, modular, certified S.A.F.E. - JBL proprietary, modular, certified

Finish: DuraFlex™ Black Textured Paint DuraFlex™ Black Textured Paint DuraFlex™ Black Textured Paint DuraFlex™ Black Textured Paint

Grille: 16 ga. perforated steel, foam backed 16 ga. perforated steel, foam backed 16 ga. perforated steel, foam backed 16 ga. perforated steel, foam backed

Dimensions H x W x D: 4890A: 376 x 686 x 376 mm (14.8 x 27 x 14.8 in) 628 x 394 x 362 mm (24 3/4 x 15 1/2 x 14 1/4 in) 1066 x 394 x 362 mm (42 x 15 1/2 x 14 1/4 in) 1066 x 394 x 362 mm (42 x 15 1/2 x 14 1/4 in)

4891A: 470 x 394 x 559 mm (18.5 x 15.5 x 22 in)

1

Half space measurement

2

Recommended Power Amplifier ratings are a guide for amplifier selection considering normal program material and line voltage available to amplifiers, although lower power amplifiers may be utilized. The Array Series systems are capable of greater peak power input.

ARRAY SERIES CONTROLLERS DSC260 DSC280

Frequency Response1: 20 Hz - 20 kHz (<+/- 0.5 dB) 15 Hz - 20 kHz ±0.25 dB

Configuration: Mono 4, 5 and 6-way 2 Channels; 1, 2, 3, 4-way out

Inputs (Balanced): 2 Channels, +20 dBu max level 10 kOhms Analog: 2 Ch, Max level +20 dBu, Pin 2+

Electronically balanced XLR connectors Digital Option, AES/EBU

Outputs (Balanced): 6 Channels, +10 dBu into 600 Ohms max level Electronically 8 Bands, Max level 20 dBu, Pin 2+

balanced XLR connectors

Front Panel Controls: Mute for each output band, Function, Parameter, Memory Mute for each output band, Function, Parameter, Memory

Rear Panel Controls: AC voltage selection, +10 dB input switch

Display: 2 x16 character backlit LCD LEDS for; meters, mute, switch enable, LCD screen for programming functions

Dynamic Range: >100 dB >105 dB

Total Harmonic Distortion: <0.05%, 20 Hz-20 kHz, @+10 dBu <.001%, 20- 20 kHz, @ +10 dBu

Nominal Gain: -10 dB 0 dB (Unity Gain)

Limiters: User adjustable threshold User adjustable threshold

Sampling Rate: 46.875 kHz 48 kHz

Input/Output Converters: 20 bit 20 bit

Crossover Frequency: 1 kHz 1 kHz

Dimensions (H x W x D): 44.4 x 483 x 203 mm (1.75 x 19 x 8 in) 89 x 483 x 357 mm (3.5 x 19 x 14 in)

Weight: 2.8 kg (6.2 lbs) 6.8 kg (15 lbs)

1

Equalization, infrasonic filters disabled

For detailed technical and architectural specifications, contact JBL Professional.

The Array Series Solution:
A Compact, Flexible
System For Professionals

Array Series is an optimized system which
combines precision engineered transducers
and advanced control technology for a level
of performance second to none. Since its
introduction these system products have found
favor around the world in a wide variety of
applications: musical theater, concert audio,
corporate A/V rental work, dance music club
installations and broadcast/film special event
support, to name but a few.

Optimized System Engineering

To optimize transducer integration, JBL
engineers turned to advanced signal processing
technology to assure smooth response and
phase integrity. Crossover filters, transducer
alignment, system equalization and protective
limiting are implemented to be completely
transparent, allowing the transducers to
perform to their maximum potential. Available
digital controllers offer the user a choice of
features and performance to complement any
installation or portable touring system.

The Sum Of Its Parts

Low Frequency Transducers

For Array Series, JBL engineers developed
the first-ever neodymium-based pro audio low
frequency transducer. This 335 mm (14 in.)
device features an advanced magnet structure,
used for high flux density and low overall
weight. Harmonic distortion is reduced through
the use of dual shorting rings
(one aluminum and the
other copper). Linearity is
maintained, even at high­excursion extremes, with
the use of a 100 mm
(4 in.) diameter edgewound
aluminum ribbon voice coil. The audible result
is absolute clarity and definition in the
bass/low mid frequency region.

JBL’s exclusive VGC™ (Vented Gap Cooling)
technology is part of an optimized Thermal
Management System which makes efficient use
of both forced air and convective cooling.
Convection cooling is maximized by encasing
the compact, powerful neodymium magnet
within the diecast aluminum frame, engineered
to act as a large, efficient heatsink. This design
reduces thermal compression by as much as

60% compared to competitive products, allowing
Array Series systems to deliver higher sound
pressure levels at full dynamic range.

A glass fiber/paper composite cone is used
to achieve a greater stiffness-to-weight ratio.
The new cone formulation, along with its ribbed­wall geometry, greatly reduces distortion by

minimizing cone break-up.

High Frequency Compression Driver

Array Series products use a 38 mm

(1 1/2 in.)
exit compression driver that features a
neodymium magnet assembly for maximum
magnetic energy and minimal weight. A damped
100 mm (4 in.) diameter pure titanium
diaphragm is positioned over JBL’s Coherent
Wave™ phasing plug for phase-correct
summing at the exit throat.

Optimized Aperture

™

Bi-RadiaI©Horns

To achieve smooth, even dispersion at low
distortion in both the horizontal and vertical
planes, Optimized Aperture Flat-Front Bi-Radial
horns were developed for Array Series systems.
The family includes a 45° model with a uniform,
narrow coverage pattern segment that combines
well in arrays. 60° and 90° horns provide
accurate, consistent coverage
for non-arraying applications.

clusters quickly and with absolute safety.
Designed, engineered and certified with a
6:1 safety factor, S.A.F.E. flying hardware
easily meets and
exceeds the most
stringent safety
requirements for
sound system rig­ging. A complete
line of hardware is
available to allow
cluster construction
for any
appli­cation.

Upgraded Enclosures Now
Feature DuraFlex

™

Long term enclosure durability is assured by
13-ply birch hardwood construction, proven
joinery techniques and JBL’s rugged DuraFlex™
exterior coating. Structural integrity is enhanced
by internal steel braces which double as attach­ment points for S.A.F.E.™ flying hardware
accessories. The enclosure’s sidewalls taper at

22.5° angles, matching horn coverage angles
for effective array construction.

For easy transport, two comfortable handles
are installed on the side walls. The 4892A
features a 35 mm (1 3/8 in.) pole mount cup
on the bottom surface, for use with Tripod
Speaker Stands. The grille is 16 gauge perforated
steel, lined with open-cell reticulate foam to pro­tect against moisture damage and dust. Input is
through two paralleled 8-pole Speakon™
connectors, which access each transducer
component individually.

There’s An Array System
Designed For The
Only Application
That Matters- Yours.

13-ply, 19 mm (3/4 in) void-free, cross-grain hardwood construction for maximum
durability in fixed or portable applications.

100 mm (4 in) pure titanium diaphragm features JBL’s patented diamond sur­round to reduce membrane stresses in the support structure. Aquaplas damping
reduces break-up modes and smoothes overall response.

VGC™ (Vented Gap Cooling) uses normal cone excursion to force air across the
voice coil for maximum heat dissipation, resulting in higher power handling and
reduced power compression.

Dual shorting rings, aluminum and copper, greatly reduce 2nd and 3rd order
harmonic distortion.

Neodymium magnet structure for light weight and high flux density. Black motor
structure is pressed into diecast aluminum frame which acts as heatsink for
effective convection cooling.

Large diameter vents prevent compression for linear output during high SPL
usage.

Integral steel braces accept S.A.F.E.™ (Secure Array Flying Hardware) for quick,
safe rigging.

4890A,4891A

Two-Way Single 355 mm (14 in)
Full Range System

These stage monitors use two configurations;
vertical format for minimal footprint, and hori­zontal for minimal height to allow unobtrusive
presence on stage. A 600 x 400 horn that
rotates in the 4890A and 45° cabinet angles
provide optimum coverage for any application.
Linear response at high level satisfies even the
most demanding artist.

4892A,4892A-90

Two-Way Single 355 mm (14 in)
Full Range System

These compact packages exhibit outstanding
full range output and are capable of very high sound
pressure levels. Both deliver impressive performance, the 4892A as a
dedicated array component and the 4892A-90 for single system
applications. A 35 mm (1 3/8 in) pole mount adapter is standard.

4894A,4894A-90

Two-Way Dual 355 mm (14 in)
Full Range System

In situations where greater low energy is
required, the 4894A and 4894A-90 deliver.
They are the ideal system choice for outdoor
and larger venue applications where maximum
sound pressure level is required without
compromising fidelity. The 4894A can be used
as an array element and for side fill applications.
The 4894A-90 provides wider coverage from a
single enclosure.

4893A

Dual 355 mm (14 in)
Subwoofer System

Delivers sub-bass support for the Array
Series full range systems. Its compact,
solidly constructed enclosure houses two
advanced VGC low frequency transducers
for tight, solid and dynamic bass.

The 4892A, 4893A, & 4894A can be arrayed together making it
possible to custom tailor clusters for virtually any desired coverage.

JBL 1400PRO
Competition

1 10 100 200 400 600 800

125

120

115

110

105

100

dB SPL

Low Frequency Transducer: Maximum Continuous SPL

The optimized Thermal Management System magnet structure
substantially increases continuous power handling for greater
total acoustic output and dynamic range compared to conven­tional designs.

The Array Series: Loudspeaker Systems That Reaffirm JBL’s Commitment To Total Engineering.

Advanced Control Electronics

Sophisticated control electronics allow
Array Series transducers to perform to their
maximum capability. Careful consideration
has been given to the overall circuit topology
of crossover filters, transducer alignment,
system equalization and protective limiting.

The DSC26O provides cost-effective
signal processing with simple setup. The
DSC28O offers additional precision, flexibility

and user convenience available only in the
digital domain. Either choice will provide
superior, high level sound quality.

S.A.F.E.™Flying Hardware

An important aspect of Array Series is

the ability to assemble loudspeaker

DSC280

DSC260