8 JFL213 and JFL118 Loudspeakers
The block diagrams above show the possible signal flows for a single JFL213 with JFL118.
Use the same processor outputs for additional JFL213s and JFL118s on the same mix bus,
i.e. “Left”, “Right”, or “Fill”.
5.4
USER ADJUSTMENTS
5.4.1
JFL213 HF Shading – Single-Amp Mode
The JFL213 has a switchable HF character while in single-amp mode, controlled by the three
position toggle labeled “HF Shading.” Each of the three positions is suitable for different sce-
narios. Be sure to select the HF shading character most appropriate for the application when
using the JFL213 in single-amp mode, even when used with a UX processor:
•
Single Box — This switch position provides an HF character that is suitable for use with
a single JFL213 that is not used in an array.
•
Multi Box — This switch position provides an HF character that is suitable for use with
multiple JFL213s in an array in short to medium throw applications (approximately 1
m-20 m / 3 ft-66 ft).
•
Long Throw — This switch position provides an HF character that is suitable for use with
multiple JFL213s in an array in long throw applications (approx. 20-30 m / 66 ft-98 ft).
Using this switch position maintains tonal balance at long distances by adding com-
pensation to those frequencies that suffer attenuation due to air loss. In an array where
some JFL213s are being used for short to medium distances and some are used for
long distances, it is appropriate to mix Long Throw and Multi Box settings as needed.
5.4.2
JFL213 HF Shading – Bi-Amp Mode
The single-amp HF shading toggle switch described in the preceding section is disabled when
the JFL213 is operated in bi-amp powering mode. HF shading functions are instead replicated
in preprogrammed greybox settings for the UX8800 and UX3600 available on the EAW website.
5.5
AMPLIFIER POWER REQUIREMENTS
The performance of the JFL213 and JFL118 depends on amplifiers delivering an adequate
supply of clean power, as is true of all professional loudspeaker systems. For information on
selecting amplifiers, please consult the accompanying EAW Loudspeaker Owner’s Manual.