RD0465 (A) JFL SERIES OWNER’S MANUAL Page 7 of 18
4. JFL210 ARRAY DESIGN
4.1 JFLWIZARD SOFTWARE
Use the
JFLWizard
software for designing JFL210 arrays. It may be found in the
Downloads/Software
section of the EAW website: http://www.eaw.com/downloads/. The
JFLWizard’s
primary function is to determine the configuration that will provide the best vertical
performance for a given application. Venue dimensions, the number of enclosures, array aiming
angle, and Fly Bar pick point can be entered manually. Given this information, the Wizard
calculates resultant array performance. For complete instructions about operating the
JFLWizard
,
click on the About/Help menu when running the software.
4.1.1 Computer Requirements
The
JFLWizard
requires an IBM-compatible PC with the Windows® 98, Windows® 98SE,
Windows NT®, Windows® 2000, Windows® ME, or Windows® XP operating systems. The
JFLWizard
should run in Windows® Vista, but full support is unknown at press time. Windows®
3.x, Windows® 95, and Macintosh® operating systems are not supported..
4.1.2 JFLWizard
Results
•
Graphical representations of the array and the venue
•
On-axis aiming angle for each enclosure as a difference from 0° horizontal
•
Various angles and throw distances calculated from the venue’s dimensions
•
Difference between the array beamwidth angle and the needed coverage angles
•
Height of the array and trim height to the bottom of the array from the floor
•
Pick Point on the Fly Bar to achieve the calculated array angle when suspended
•
Weight of the array
4.2 GROUND STACKING
Normally, a ground-stacked JFL Series main array is used where suspension is not possible, too
difficult, or too time-consuming. JFL210 – with or without JFL118 – are also quite effective when
used in stage side fill or audience front fill applications.
Both JFL210s and JFL118s may be ground-stacked alone or in combination. In combination,
always stack JFL210s on top of JFL118s. The recommended minimum and maximum array
quantities are:
Array Min
Max
JFL210 alone*
1
4
JFL118 alone
1
4
JFL210 / JFL118
1/1
4 / 2
* Two or more JFL210 must be stacked on accessory FB121 Fly Bar.
WARNING: Ground-stacked arrays, especially the maximum recommended arrays, may present a
tipping hazard and require assembly by personnel qualified to ensure adequate stability. See the
FB121 Rigging & Ground Stack Instructions
for correct array assembly. Mechanical assistance may
be required to lift and position enclosures for arrays taller than approximately 5 feet.
4.3 SUBWOOFERS IN THE ARRAY
4.3.1 General
Considerations
Although the low frequency performance of JFL Series arrays allows them to be used without
subwoofers for some events, subwoofers will normally be used for live musical performances.
The recommended subwoofer is EAW’s JFL118, specifically designed to complement JFL210 line
arrays.
