JBL 4894 90 User Manual

High Power Two-Way  
4894-90Loudspeaker System  
Array Series  
Key Features:  
Wide Coverage Angle Design  
90° Horizontal Horn Pattern for  
Non-arrayed Applications  
High Technology Transducers  
355 mm (14 in) Ultra-low Distortion  
Neodymium Woofer with Unique  
Gap Topology,  
38 mm (1½ in) exit, 100 mm (4 in)  
diaphragm Neodymium  
Compression Driver  
Secure Array Flying Ergonomics -  
S.A.F.E.™  
Internal Steel Braces accept  
Optional Truss Module and  
Hardware  
Integrally Designed with JBL  
Array Series Controllers  
Choose Analog, or Digital  
Controller for optimum system  
performance  
Specifications:  
Frequency Response (± 3 dB)1:  
46 Hz - 18 kHz  
Sensitivity:  
Recommended Amplifier Power2:  
High Frequency:  
100 dB (1 W, 1  
Versatile  
300 W at 8 ohms  
Concert and Theater Reinforce-  
ment, A/V Presentation, High  
Power Installations  
Low Frequency:  
600 W at 8 ohms each transducer, 1200 W total  
90° horizontal, 40° vertical  
Nominal Coverage:  
LOW FREQUENCY TRANSDUCERS:  
Nominal Diameter: 355 mm (14 in)  
Array Series Systems  
Nominal Impedance:  
Two transducers with separate pinouts  
8 ohms each  
JBL’s commitment of providing audio  
professionals the best tools for their  
work continues with the Array Series.  
JBL Array Series systems provide the  
ultimate performance for touring and  
fixed installations. The high power,  
compact 4894-90 provides smooth,  
predictable coverage and response  
from a single box. It combines ease of,  
transport with the flexibility to fly or  
install quickly and safely. Integration  
of advanced design high power trans-  
ducers, a new generation of horns,  
and advanced control electronics pro-  
vides clearly superior performance.  
Reliability is designed in, without  
having to relay on intrusive signal  
processing.  
Power Rating:  
600 watts AES, 50 Hz to 500 Hz, 2400 W  
Peak each transducer. 1200 W total  
Voice Coil:  
Features:  
100 mm (4 in) edgewound aluminum ribbon  
Ultra linear, neodymium magnet motor structure  
Vented Gap Cooling  
HIGH FREQUENCY TRANSDUCER:  
Throat Diameter:  
38 mm (1½ in) exit  
Nominal Impedance: 8 ohms  
Power Rating:  
Diaphragm:  
Voice Coil:  
75 watts AES, 1 kHz to 10 kHz, 300 W peak  
100 mm (4 in) pure titanium  
100 mm (4 in) edgewound aluminum ribbon  
Features: Neodymium magnet motor structure  
HIGH FREQUENCY HORN:  
Type: Optimized Aperture™ Flat-Front Bi-Radial®  
Material: Die cast aluminum  
Coverage: 90° horizontal, 40° vertical  
ENCLOSURE:  
Type: Vented, 45” included angle trapezoid  
Components  
Material:  
19 mm (¾ in), 13 ply hardwood  
Flying System: S.A.F.E. -JBL proprietary, modular, certified  
Finish: Black textured paint  
Array Series builds upon a solid foun-  
dation: more than 40 years of JBL  
transducer expertise and engineering.  
The 355 mm (14 in) low frequency  
transducer represents JBL’s commit-  
ment to research. New technology  
includes a unique deep copper-  
Grille:  
Connectors:  
16 ga. perforated steel, foam backed  
Parallel 8 pin Neutrik -pins 1 ± LF1, pins 2 ± LF2,  
pins 3 ± HF  
Dimensions:  
H x W x D  
Net Weight:  
1066 x 394 x 362 mm  
(42 x 15½ x 14¼ in)  
47.3 kg (104 lb)  
sleeved gap low-distortion motor  
structure topology, coupled to Vented  
Gap Cooling (VGC TM )1 to produce  
¹
²
Half Space measurement.  
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 4894 system is capable of signifi-  
cantly greater peak power input.  
1U.S. Patent #5,042,072  
4894-90 High Power Two-way Loudspeaker System  
the accurate reproduction at high power levels with  
minimal power compression. A new 38 mm (1% in)  
exit neodymium high frequency compression driver  
with Coherent Wave’” phasing plug and 100 mm (4 in)  
titanium diaphragm delivers low distortion response to  
beyond 20 kHz. A 90° Optimized Aperture™ Flat-Front  
Bi-Radial ® horn² provides accurate pattern control over  
its entire bandwidth.  
S.A.F.E.Secure Array Flying Ergonomics  
¼
x 20 threads, 4 places,  
top and bottom  
Important for both portable and fixed installation appli-  
cations is the ability to rig a cluster quickly, but with  
absolute safety. The 4894-90 has four internal steel braces  
that are ready to accept optional bolt-on truss modules.  
An array to provide desired coverage can be quickly  
assembled using a few basic fittings. Ultimate break  
strength of this method exceeds 2700 kg (6000 lb). A com-  
plete line of hardware is available for many applications  
including flying subwoofers in an array.  
Optional S.A.F.E. Fittings  
Active Control  
The ASC24 provides cost effective analog signal process-  
ing with simple setup. The DSC280 offers additional  
precision, flexibility, and user convenience available  
only in the digital domain. Both provide superior high  
level sound quality.  
Enclosure  
Extremely rigid 19 mm ( ¾ in) 13 ply hardwood, a  
textured black paint finish, and a perforated 16 ga.  
steel grille form a durable package.  
Applications  
Module  
-TM 12  
The 4894-90 is ideal for applications requiring high  
fidelity, high level music reproduction, or high intelligi-  
bility speech reinforcement. For applications requiring  
very low frequency reinforcement the 4893 subwoofer’s  
dimensions match the 4894-90 allowing convenient  
integration.  
²
U.S. Patent #4,308,932  
OPTIONAL S.A.F.E.  
FLYING HARDWARE:  
Stacking Bracket  
ASF-SB12  
Truss Module: Cabinet flying truss  
Shackle Mount:  
Attaches to truss module to create  
a lifting point  
Quick Release Pin: Locks S.A.F.E. components  
Stacking Bracket: Vertically attaches two truss modules  
Locking Steel Caribiner:  
Used with shackle mount  
Net Weight loudspeaker with  
Truss Modules installed:  
51.8 kg (114 lb)  
JBL continually engages in research related to product improvement New materials, pro-  
duction 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.  
JBL Professional  
8500 Balboa Boulevard, P.O. Box 2200  
Northridge, California 91329 U.S.A.  
SS 4894-90  
CRP 10M  
9/95  
A
Harman International Company  

Black Decker 14600TB User Manual
Blaupunkt MIAMI CD74 User Manual
Breville BBL420XL User Manual
Canon Camcorder OPTURA30 User Manual
Carson Optical 1181280 User Manual
Carson SA 500 06 14V User Manual
Extron electronic Extron Electronics Car Amplifier XPA 2002 70V User Manual
HP (Hewlett Packard) R840 User Manual
InFocus Camera Accessories INF5520 User Manual
JBL GTO1220 User Manual