Still the best sound system in it’s class! Although the new range from JBL on the market is also extremely impressive, the HLA delivers hi quality sound in the top as well as the bottom range. It is a sought after system in Europe where open air symphony concerts are the order of the day and the power output as well as the rounded sound delivery across the whole frequency  range, makes this a system perfectly suited to the occasion.  During concerts our system has a 100% backup system due to the fact that  we run two separate amplification bundles. The CREST  cluster may be used while the CROWN  cluster will be in standby mode. Thus, the chance of missing a beat with your staging , is slim!
 
The JBL-HLA  is a large and bulky system but always worth the effort. Once the basics are done, the system inter connection is simple and fool proof.

The second generation of one of the most successful and influential professional speaker systems ever.

15 in Differential Drive® low-frequency driver with dual neodymium magnet for light weight and reduced distortion.
1 in (throat diameter) JBL compression driver with 1.75 in titanium diaphragm and ferro-fluid cooling.
300 W low-frequency and 100 W high-frequency (bi-amplified) - actual power delivered to the drivers.
Built in 3-input mixer. One balanced mic/line input, two .25 in phone line-level inputs. Two-band equalization.
Balanced loop-through/mix output. "Daisychain" additional EON speakers or send the mixed output to a mixing console.
60° x 90°(nominal) constant directivity horn.

Thermomaster® Total Thermal Management System®. A single piece, cast-aluminum baffle integrates the woofer frame,horn, in MIC position) and amplifier heat sink. Air movement in the finned ports dissipates heat - no internal or external cooling fans are required.
Rugged, light-weight, black co-polymer enclosure.
Integral 35 mm pole mount receptacle.
Multi-angle enclosure for front of house or stage monitor application.
Tailored dynamic processing protects amplifiers and speakers from being over-driven without producing extreme changes in frequency response as level varies.
Extended low-frequency performance delivers powerful bass down to 39 Hz.

Power Rating:  400 W
Frequency Range:  39 Hz - 18 kHz(-10 dB)
Dimensions (H x W x D):   686 mm x 430 mm x 444 mm (27 in x 17 in x 17.5 in)
Frequency Response:   42 Hz - 17 kHz (±3 dB)
Horz. Coverage:  90° Nominal (-6 dB)
Vert. Coverage:  60º Nominal (-6 dB)
Rated Maximum SPL:  129 dB, @ 1 m (3.3 ft.)
Net Weight:  21 kg (46 lb)