JBL PD-125 Brochure
PD125
High Output Dual 15"
Low Frequency Array Module
Key Features:
FSA™ Forward Steered Array
enclosure configuration for
optimum acoustic performance in
arrays of four or more modules
Up to 15 dB of rear rejection at
200 Hz and 90° of beam steering
capability in typical eight module
array
Usable LF reinforcement to 38 Hz
2226H 15" VGC (Vented Gap
Cooled™) Transducers
Available suspension truss
components make array building
simple and cost effective
The PD125 Precision Directivity™
loudspeaker is a high power low
frequency module designed for use
in arrays and in conjunction with
other PD series systems to construct
fullrange systems.
A key advantage of FSA systems is
the ability to project a single welldefined energy “lobe” into the audience area. The combination of even
response in the seating area and high
off-axis attenuation substantially
increases the quality of low-frequency reproduction by maximizing the
ratio of direct-to-reverberant sound.
FSA arrays are based on end-fired
line array principles. In an end-fired
configuration, the length of the array
determines its useful low-frequency
directivity and the spacing of the elements determines the frequency at
which beaming occurs. FSA technology improves upon the useful characteristics of the traditional end-fired
system through a combination of
physically expanding the line array
into a three-dimensional array and
controlling directivity via the use of
digital signal processing. Multichannel signal processing with
amplitude and delay capability and
multi-channel amplification is
required for implementing FSA array
steering. Contact JBL Professional for
application details.
The PD125 employs the 2226H 15"
transducer, one of JBL’s family of
Vented Gap Cooling woofers.
Transducers are mounted “magnetsout” for maximum heat transfer,
assuring long term reliability at high
power levels. Each transducer is
mounted in a separate vented subchamber.
For outdoor applications, several levels of weather resistance are avail-
able. Please contact your sales representative or JBL for further information.
Preliminary Specifications:
System:
Frequency Range (-10 dB): 38 Hz - 1.7 kHz
Frequency Response (±3 dB): 45 Hz - 900 Hz
Recommended High Pass: 45 Hz, 12 dB/Octave
Recommended Low Pass: 250 Hz, 48 dB/Octave
Input Power Rating: 1200 W AES; 4800 W Peak; parallel wiring
(100 hour test duration) (2 x 600 W AES; 2x 2400 W Peak; independent wiring)
Sensitivity1(50 Hz - 500 Hz): 100 dB SPL, 1W @ 1m (3.3 ft)
Calculated Max. SPL
(50 Hz - 500 Hz): 131 dB Continuous, 137 dB Peak SPL @ 1m (3.3 ft)
Nominal Impedance: 4 Ohms (2 x 8 ohm)
Transducers:
Low Frequency: 2 x 2226H, 380 mm (15 in) dia., 100 mm (4 in) edgewound
ribbon voice coil
Physical:
Enclosure: Rectangular; birch plywood, extensively braced
Suspension Attachment: 16 points; 4 each top, bottom & sides; accept M10 threaded
hardware
Finish: Black DuraFlex coating
(white or custom color optional)
Grille: Black powder coated zinc treated 16 gauge perforated steel
grille with foam backing (white or custom color optional)
Input Connector: 2 x NL4 Neutrik Speakon connector; each driver wired
independently; parallel or separate wiring user selectable via
internal jumper input on top of enclosure
Dimensions (H x W x D): 35 in x 17 in x 28.5 in
889 mm x 432 mm x 724 mm
Net Weight: 125.5 lb, 57 kg
1 Sensitivity is based on a swept test signal with an input of 1 Watt at rated impedance, measured in half-space.
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.
JBL Professional
8500 Balboa Boulevard, P.O. Box 2200
Northridge, California 91329 U.S.A.
© Copyright 2000 JBL Professional
A Harman International Company
SS PD125
CRP 15M
8/01
PD125 High Output Dual 15" Low Frequency Array Module
Dimensions
Typical Eight-Box Array
Top
17 (432)28.5 (724)
Rear
Side
68 (1727)
Top
35
(889)
Front
Bottom
Truss
Module
(1092)
43
Side
68.5
(1740)
Front
Dimensions in inches (mm)
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