Page 1
J212
USER MANUAL
ED-B3-MA-070604-001
Page 2
CONTENTS
FEATURES
SPECIFICATION
ACOUSTIC CHARTS
INSTALLATION
DIMENSIONS
LIMITED WARRANTY
Page 3
J212
INTRODUCTION
3 J series loudspeaker is mainly used for all kinds of rock-and-roll bar, entertainment bar, club, and all kinds
of dynamic performance, cellular reinforcement sound. This series includes three different types of speakers,
2 types of two-way full range speaker ,and one subwoofer speaker. .
12 inch full range and 15 inch full range speakers are pentagonal section; they are convenient to make an array.
When it is used for echo on the stage , it can debase the production of wave inside ,and we adopt selected high
strength MDF plate ,which has enough strength and it can absorb the heterogeneral sound of resonance .EJ series
adopts standard flying configuration ,and SPK speakon socket input ,so it is convenient for fixing. .
J Series products are developed and produced by combination of the latest computerized stimulation design
technology, the latest loudspeaker material and manufacturing technology. All transducers adopt the optimized
magnetic circuit having high magnetic energy, low distortion and excellent. LF uses nonlinear thickness long
fabric paper cone with special painting cloth surround and high power sandwich type voice coil. HF adopts high
temperature treatment Ti diaphragm, voice coil with copper cladding aluminum wire and compression cavity
designed with linear phase technology. The products have good sound field coverage through broad dispersion
horn and the latest adjustable delay symmetric circuit was also used for improving reliability as well as sound
quality. Voice coil with diameter 100mm and magnetic circuit with diameter 220mm were used for subwoofer to
effectively prevent the occurrence of distortion. .
FEATURE
Computer optimized analog design in order to get good response and phase feature
Two way full range high sensitivity speaker
One 12inch professional high effective woofer unit
One compression driver with Dia 2 inch Titanium diaphragm
80 x 50 wide dispersion
Mono amplifier promotes
It is used for all kinds of rock-and roll bar, hall, club and all kinds of dynamic performance in
entertainment for sound reinforcement
It is used for high quality music repeating, and can match Beta 3 EJ218 high power subwoofer speaker
SPECIFICATION
Transducer
Frequency response(-3dB)
Sensitivity(1m/1W)
Crossover Point
Dispersion H V
Rated Power RMS
Rated Impedance
DC impedance
THD
Input Connectors
Net Weight
Gross Weight
Dimension(W D H)
Packing Dimension(W D H)
LF 12" 1
HF 44mm 1
50Hz-20kHz
96dB
2.0kHz
250W
8
5.9
3
NL4 2 1+ 1-
23kg
27kg
396 369 600mm
505 480 720mm
1
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J212
FREQUENCY RESPONSE
1 0 0
dBS
9 0 108
8 0 36
7 0
6 0 - 108
5 0 - 180
50 100 200 500 1k 2k 5k 10k 20k20 Hz
180
D e g
- 36
PHASE RESPONSE
1 4 0
Deg
1 1 0
8 0
5 0
2 0
- 1 0
50 100 200 500 1k 2k 5k 10k 20k20 Hz
2 5 2
D e g
1 4 4
3 6
- 7 2
- 1 8
- 2 8
2
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J212
IMPEDANCE RESPONSE-HF
50
40
30
20
10
9
8
7
10 Hz 20 50 100 200 500 1K 2K 5K 10K 20K
180
150
120
90
60
30
0
-30
-60
-90
-120
-150
-180
IMPEDANCE RESPONSE-LF
50
40
30
20
10
9
8
7
10 Hz 20 50 100 200 500 1K 2K 5K 10K 20K
180
150
120
90
60
30
0
-30
-60
-90
-120
-150
-180
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J212
WATERFALL
0
dB
- 5
0
ms
THD
100.0
dBSPL
90.0
80.0
- 10
- 15
- 20
- 25
2 00 50 0
1K
3.0
6.0
10.0
2K 5K 1 0K 2 0K1 50 Hz
180
D e g
108
36
70.0
60.0
50.0
20 50 100 200 500 1k 2k 5k 10k 20k20 Hz
Frequency Response
2nd Distortion
4
- 36
- 108
- 180
3rd Distortion
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J212
HORIZONTAL DIRECTIVITY
The data of J212 horizontal directivity were collected by testing the speaker system in a big anechoic
chamber.
0
330
300
270
240
210
30
60
90
120
150
180
330
300
270
240
210
0
30
60
90
120
150
180
330
300
270
240
210
0
30
60
90
120
150
180
100Hz 160Hz 200Hz
0
330
300
270
240
210
30
60
90
120
150
180
330
300
270
240
210
400Hz
0
180
630Hz
30
60
90
120
150
330
300
270
240
210
0
180
1.0kHz
30
60
90
120
150
0
330
300
270
240
210
30
60
90
120
150
180
330
300
270
240
210
1.6kHz
0
330
300
270
240
210
30
60
90
120
150
180
330
300
270
240
210
6.3kHz
0
180
2.5kHz
0
180
30
60
90
120
150
30
60
90
120
150
330
300
270
240
210
330
300
270
240
210
0
180
3.15kHz
0
180
10kHz 16kHz
30
60
90
120
150
30
60
90
120
150
The scale is stepped by 6dB increment.
5
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J212
VERTICAL DIRECTIVITY
The data of J212vertical directivity were collected by testing the speaker system in a big anechoic
chamber.
0
330
300
270
240
210
30
60
90
120
150
180
330
300
270
240
210
0
30
60
90
120
150
180
330
300
270
240
210
0
30
60
90
120
150
180
100Hz 160Hz 200Hz
0
330
300
270
240
210
30
60
90
120
150
180
330
300
270
240
210
400Hz
0
180
630Hz
30
60
90
120
150
330
300
270
240
210
0
180
1.0kHz
30
60
90
120
150
0
330
300
270
240
210
30
60
90
120
150
180
330
300
270
240
210
1.6kHz
0
330
300
270
240
210
30
60
90
120
150
180
330
300
270
240
210
6.3kHz
0
180
2.5kHz
0
180
30
60
90
120
150
30
60
90
120
150
330
300
270
240
210
330
300
270
240
210
0
180
3.15kHz
0
180
10kHz 16kHz
30
60
90
120
150
30
60
90
120
150
The scale is stepped by 6dB increment.
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J212
INSTALLATION
DIMENSIONS
Planform
369mm
396mm
600mm
Front view
Side view
Back view
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J212
LIMITED WARRANTY
If malfunction occurs during the specified warranty period from the date of original purchase,
the product will be repaired or replaced without charge by Elder Audio.
The Limited Warranty does not apply to:
(a)exterior finish or appearance;
(b)certain specific items described in the individual product data sheet or owner's manual;
(c)malfunction resulting from use or operation of the product other than as specified in the
individual product data sheet or owner's manual;
(d)malfunction resulting from misuse or abuse of the product;
(e)malfunction occurring at any time after repairs have been made to the product by anyone
other than Elder Audio Service or any of its authorized service representatives.
To obtain warranty service, customer must deliver proof of purchase of the product in the form
of a bill of sale or receipt invoice.
J212 Speakers and Speaker Systems are guaranteed against malfunction due to defects in
materials or workmanship for a period of three (3) years from the date of original purchase. The
Limited Warranty does not apply to burned voice coils or malfunctions such as cone and/or coil
damage resulting from improperly designed enclosures. Additional details are included in the
Limited Warranty statement.
J212 Accessories are guaranteed against malfunction due to defects in materials or workman
ship for a period of one (1) year from the date of original purchase. Additional details are included
in the Limited Warranty statement. .
J212 Flying Hardware (including enclosure-mounted hardware and rigging accessories) is
guaranteed against malfunction due to defects in materials or workmanship for a period of one
(1) year from the date of original purchase. Additional details are included in the Limited Warranty
statement.
Specifications are subject to change without notice.
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J212
www.elderaudio.com
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