JBL 2152H Specification Cone Transducer Specsheet
User Manual: JBL JBL - Manuals+
Open the PDF directly: View PDF 
.
Page Count: 2
2152H
300 mm (12 in)
Coaxial Transducer
Professional Series
Key Features:
44 mm (1.75 in) Pure Titanium
Diaphragm HF Compression Driver
Flat-Front Bi-Radial® HF Horn
Sensitivity: 102 dB SPL 1 W,
1 m (3.3 ft)
Power Capacity: 150 W IEC Pink
Noise
Integral Transformer Mounting
Bracket
The JBL 2152H Coaxial Transducer
represents the results of JBL’s inten-
sive research into the performance
and applications of compression-
driver coaxial transducers intended
for engineered sound applications. TO
achieve high acoustical power output
capability while maintaining smooth
response, wide bandwidth and con-
sistent dispersion in several critical
HF octave bands, JBL engineers used
advanced CAD techniques to apply
low-distortion Bi-Radial® horn
architecture to a coaxial system, and
then combined the new horn with
JBL’s 2416H High-Frequency Com-
pression Driver.
The 2416H incorporates a pure
titanium diaphragm with JBL’s
patented “diamond surround” for
control over secondary resonances,
extended frequency response, and
greatly reduced mechanical fatigue.
A copper shorting ring on the pole
piece controls high-frequency impe-
dance and further improves high-
frequency response.
The low frequency driver combines
a rugged die-cast frame with a spe-
cially designed cone and 76 mm (3 in)
edge-wound aluminum ribbon voice-
coil motor structure. An integral
transformer mounting bracket is pre-
attached to the LF transducer frame
and also allows quick access to the
crossover network.
Specifications:
SYSTEM:
Frequency Range ( - 10 dB): 70 Hz - 17 kHz
Power Ratingl:150 W continuous pink noise
Sensitivity 2:102 dB, 1 W (2.83 V) 1 m (3.3 ft)
Nominal Impedance: 8 ohms
Crossover Frequency: 1.5 kHz
LOW FREQUENCY TRANSDUCER:
Nominal Diameter: 300 mm (12 in)
Voice Coil Diameter: 76 mm (3 in)
Magnet Weight:
1.45 kg (3.2 lb)
Sensitivity 3:101 dB, 1 W (2.83V), 1 m (3.3 ft)
HF COMPRESSION DRIVER/HORN:
Nominal Diameter: 44 mm (1.75 in)
Voice Coil Diameter: 44 mm (1.75 in)
Magnet Weight: 1.39 kg (3.1 lb)
Sensitivity 4
110 dB, 1 W (2.83 V), 1 m (3.3 ft)
Dispersion Angles: 90° Nominal
GENERAL:
Polarity:
Positive voltage to ( + ) terminal on network
input gives forward L.F. cone motion
Input Terminations: Female crimp-on and wire nuts supplied
Transformer Mounting: Integral mounting plate on LF frame
Recommended Enclosure Volume: 711(2.3 cu ft)
System Net Weight:
9.5 kg (21 lb)
(1) Rating based on test signal of filtered random noise conforming to the international standard IEC 268-l (pink noise with
12 dB per octave rollof below 40 Hz and above 5000 Hz with a peak-to-average ratio of 6 dB), 2 hours duration.
(2) Averaged from 500 Hz to 2.5 kHz
(3) Averaged from 100 Hz to 500 Hz
(4) Averaged from 2 kHz to 10 kHz
(5) Included by - 6 dB down points, averaged between 1 kHz and 10 kHz
2152H 300 mm (12 in) Coaxial Transducer
In response to consultant and contractor requests, the
JBL 2152H was designed to perform well in the most
commonly-specified utility metal enclosure and baffle
combinations, despite the generally detrimental acoustical
properties of those enclosures. Custom-build boxes will
usually result in better performance characteristics than
those published here.
THIELE/SMALL PARAMETERS:
Fs: 85 Hz
Re 4.5ohms
Qts: 0.39
Qes: 0.44
Vas: 37 l(1.3 ft3)
S,:
0.053 m
2 (82.15 in2)
Xmax: 2.5 mm (0.1 in)
Vn:
133 cm
3 (8 ins)
Le: 0.5 mH
qo
(Half space): 5.1%
Pe (Max): 150 W
MOUNTING INFORMATION:
Overall Diameter: 311 mm (12 ¼ in)
Bolt Circle Diameter:
294 mm (11 9/16 in)
Baffle Cutout Diameter (rear mount):
280 mm (11 1/6 in)
Baffle Cutout Diameter (front mount): 279 mm (11 in)
JBL continually engages in research related to product improvement. New materials, pro-
duction 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 orignal design specifications unless otherwise stated.
Frequency Response, 1 W at 1 m; Impedance
222 mm
(8 ¾ in)
Composite octave polar responses of the 2152H in both horizontal
and vertical planes over the range of 500 Hz to 16 kHz (1 meter
measurement distance in an anechoic chamber).
JBL Professional
8500 Balboa Boulevard, PO. Box 2200
Northridge, California 91329 U.S.A.
H A Harman International Company
SS 2152H
CRP 5M
10/96
