JBL Model 2130 transducer

is a high-power

professional

capable of generating

extremely

levels while at the same time providing of speech or music. It is ideally clusters, distributed-speaker frequency

transducer

application,

the event of failure cone diameter,

wherever -

15-inch

available unit.

ceiling installations, two-way

of the high frequency

Therefore, mounting

is identical

A four-inch magnetic

reproduction

conversion

arrays or

reproducer.

it can be substituted

Except

for the 2135 a

efficiency

and loo-Watt

standards of precision, in for

to 15-inch

space will not accommodate

edgewound

voice coil and highly efficient for the 2130’s

continuous

program

after year, without

it will deliver exceptional

special care or attention.

high power

can produce

pressure level greater than 100 dB. Built to traditional

systems. In the last

in construction

diameter

assembly are largely responsible

rating. At a distance of 30 feet, a single 2130

or as the low

response provides a backup capability

Model 2130

JBL Model 2135.

12-inch

clear, natural

suited for columnar

of compact

its full-range

quality

high sound pressure

a sound

JBL

performance

year

Model 2130 - 12” Extended Range Transducer

Architectural

Specifications

The transducer

shall have a nominal

diameter

of 12 inches, overall

depth not greater than 5 inches, and weigh at least 15 pounds. The frame shall be of cast aluminum the magnetic iron return

to resist deformation

assembly shall use Alnico

circuit

for maximum

efficiency

and suppression

stray fields. The voice coil shall be approximately diameter

and shall be made of edgewound

operating

in a magnetic

frequencies

of

four inches in

aluminum

ribbon

field of not less than 12,000

shall be reproduced

and

V encased in a heavy cast

gauss. High

by a dural dome attached

directly

to the voice coil former. Performance

specifications

of a typical

production

unit shall be

as follows: Measured sensitivity 500-2500

(SPL at 30 feet with one mW input, warbled

Hz) shall be at least 52 dB on-axis and 48 dB 45’off-

axis. As an indication the BI factor

of electromechanical

conversion

efficiency,

shall be at least 1.8 x IO7 dynes per abampere.

Usable frequency

response shall extend

8000

response, measured at a distance of six feet or

Hz. On-axis

more under free-field

conditions,

line rising with frequency shall not deviate to 3,000

but at 10,000

3,000

a straight

Hz response shall gradually

Response from 45 roll off,

Hz shall be not more than 12 dB down from the

Hz reference

level. Nominal

ohms and power capacity

The transducer

impedance

material.

shall be JBL Model 2130. for equivalency

a recognized

independent

performance

specifications

q:

Professional

provided

Other

loudspeakers

that submitted

test laboratory

will

data from

verify that the above

are met.

--

Series

Professional

James B Lansing Sound.

shall be 8

shall be at least 100 watts normal

speech or music program

be considered

shall approximate

at a rate of 2 dB per octave.

more than 3 dB from this characteristic

Hz. Above

500-2500

from 50 to at least

Division

Inc.. 3249 Casltas Avenue,

Los Angeles, California

90039