Beta Three EJ212 Manuel utilisateur

ED-B3-MA-070604-001

J212

USER MANUAL

CONTENTS

FEATURES

ACOUSTIC CHARTS

INSTALLATION

DIMENSIONS

SPECIFICATION

LIMITED WARRANTY

LF 12" 1

HF 44mm 1

50Hz-20kHz

96dB

2.0kHz

250W

5.9

NL4 2 1+ 1-

J212

23kg

27kg

396 369 600mm

505 480 720mm

SPECIFICATION

Transducer

Sensitivity(1m/1W)

Frequency response(-3dB)

THD

Net Weight

Gross Weight

Dimension(W D H)

Packing Dimension(W D H)

Crossover Point

Rated Power RMS

Rated Impedance

DC impedance

Input Connectors

Dispersion H V

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 dynamicperformance in

entertainment for sound reinforcement

It is used for high quality music repeating, and can match Beta 3 EJ218 high power subwoofer speaker

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. .

INTRODUCTION

FEATURE

1 0 0

dBS

180

9 0 108

8 0 36

7 0 - 36

6 0 - 108

5 0 - 180

50 100 200 500 1k 2k 5k 10k 20k20 Hz

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

D e g

J212

FREQUENCY RESPONSE

PHASE RESPONSE

10 Hz 20 50 100 200 500 1K 2K 5K 10K 20K

-180

-150

-120

-90

-60

-30

120

150

180

10 Hz 20 50 100 200 500 1K 2K 5K 10K 20K

-180

-150

-120

-90

-60

-30

120

150

180

J212

IMPEDANCE RESPONSE-HF

IMPEDANCE RESPONSE-LF

- 10

- 15

- 20

- 25

2 00 50 0

2K 5K 1 0K 2 0K1 50 Hz

3.0

6.0

10.0

- 5

J212

20 50 100 200 500 1k 2k 5k 10k 20k20 Hz

100.0

dBSPL

90.0

80.0

70.0

50.0

60.0

180

108

- 36

- 108

- 180

D e g

THD

WATERFALL

Frequency Response 2nd Distortion 3rd Distortion

100Hz 160Hz 200Hz

400Hz 630Hz 1.0kHz

1.6kHz 3.15kHz

6.3kHz 10kHz 16kHz

2.5kHz

120

150

180

210

240

270

300

330

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330

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330

J212

The scale is stepped by 6dB increment.

HORIZONTAL DIRECTIVITY

The data of J212 horizontal directivity were collected by testing the speaker system in a big anechoic

chamber.

The data of J212vertical directivity were collected by testing the speaker system in a big anechoic

chamber.

VERTICAL DIRECTIVITY

100Hz 160Hz 200Hz

400Hz 630Hz 1.0kHz

1.6kHz 3.15kHz

6.3kHz 10kHz 16kHz

2.5kHz

120

150

180

210

240

270

300

330

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150

180

210

240

270

300

330

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150

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300

330

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330

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330

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150

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210

240

270

300

330

120

150

180

210

240

270

300

330

120

150

180

210

240

270

300

330

J212

The scale is stepped by 6dB increment.

J212

600mm

396mm

369mm

DIMENSIONS

Planform Front view

Side view Back view

INSTALLATION

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.

LIMITED WARRANTY

Specifications are subject to change without notice.

J212

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