JBL PD-764 Brochure

PD764
Very High Output Mid-High Loudspeaker System
Key Features:
60° by 40° Coverage Pattern – symmetrical frontal dimensions allow horizontal or vertical orientation within an array
IFS™ Interference Free Summation dual HF driver module eliminates destructive interference and increases output by 6 dB
Dual 8" horn loaded cone mid­frequency drivers provide 6 dB greater output than traditional designs
Pattern control maintained to below 400 Hz
Co-axial mid/high-frequency module layout improves mid­frequency arrayability and minimizes size
Integrated rigging system simplifies array design and construction
The PD764 Precision Directivity™ loudspeaker provides high-impact sound reinforcement at throw dis­tances that are beyond the reach of single-driver designs. A single module produces greater than 104 dB SPL (continuous) at distances of 50 m (165 ft). The PD764 may be used in clusters with other PD family mod­ules or singly as part of a distributed system. PD100 series low-frequency elements may be added to the array to extend bandwidth and pattern control to the lowest octaves.
The PD764 transducer complement features JBL’s most advanced technol­ogy. The 2250J NDD™ Neodymium Differential Drive®8" midrange trans­ducer features a high energy neo­dymium magnet based motor, dual voice coils and a large aluminum heatsink structure. The 2430H com­pression driver utilizes the latest in magnet and diaphragm technology to pack the performance of a traditional
10.5 Kg (23 lb), 25 cm (10 in) diameter compression driver into one weighing 1 Kg (2.2 lb) and measuring
10.8 cm (4.25 in) in diameter.
For outdoor applications, several levels of weather resistance are avail­able. Please contact your sales repre­sentative or JBL for further informa­tion.
Preliminary Specifications:
System:
Frequency Range (-10 dB): 150 Hz - 17 kHz
Frequency Response (±3 dB): 200 Hz - 15 kHz
Hor. Coverage Angle (-6 dB): 60°
Vert. Coverage Angle (-6 dB): 40°
Directivity Factor (Q): 20
Directivity Index (DI): 13 dB
Recommended crossover
frequencies: 225 Hz, 1.5 kHz
Nominal Impedance: MF: 8 Ohms, HF: 16 Ohms
Input Power Rating1: MF: 700 W AES (2800 W peak)
HF: 150 W AES (600 W peak)
Sensitivity2: MF: 109 dB, 1 W @ 1 m (3.3 ft)
HF: 116 dB, 1 W @ 1 m (3.3 ft)
Calculated Maximum SPL: MF: 137 dB Continuous; 143 dB Peak
HF: 138 dB Continuous; 144 dB Peak SPL @ 1 m (3.3 ft)
Transducers:
Mid Frequency: 2 x 2250J - 203 mm (8 in) cone, Dual 75 mm (3 in) edge-
wound ribbon voicecoil, NDD™ motor structure
High Frequency: 2 x 2430H - 75 mm (3 in) diaphragm, 38 mm (1.5 in) aperture,
neodymium magnet
Physical:
Enclosure: Dual Trapezoidal, 35° vertical, 55° horizontal; birch plywood
Suspension Attachment: M10 threaded points, 20 total; 5 each top & bottom, 4 each
side, 2 rear
Finish: Black DuraFlex™ coating
(white & custom colors optional)
Grille: Black powder coated zinc treated 14 gauge perforated steel
with black foam backing (white & custom colors optional)
Input Connector: Neutrik NL4 SpeakOn (Options: barrier strip or captive cable)
Dimensions (H x W x D): 39 in x 39 in x 34.75 in
991 mm x 991 mm 883 mm
Net Weight: 215 lb, 97.7 kg
1
Rating based on AES test signal of filtered random noise with a peak-to-average ratio of 6 dB, two hours duration.
2
Sensitivity is based on a swept test signal for an input of 1 Watt at rated impedance.
JBL continually engages in research related to product improvement. Some materials, production 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.
PD764 Very High Output Mid-High Loudspeaker System
Directivity Index, Q
Frequency Response
Beamwidth
Dimensions
Horizontal Off Axis Frequency Response
Vertical Off Axis Frequency Response
6.9
(175)
27.5°
39
(991)
39
(991)
Front
19.5
(495)
34.75 (883)
19.5
(495)
Top
17.5°
Rear
Side
Dimensions in inches (mm)
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