Atlas IED 12CXT60 Data Sheet

TRUE COMPRESSION COAXIAL LOUDSPEAKER

AVAILABLE WITH TRANSFORMER

Specifications subject to change without notice

© 2002 Atlas Sound LP 00602 ATS001277 RevA8/02 PP SL1-2007

2.31

ONE

12CX

12CXT60

FEATURES

• 1" Exit compression high frequency driver coupled to a
specially designed conical wave-guide horn provides
exceptional output & accurate high frequency
reproduction

• High efficiency cone woofer is optimally matched with a
specially designed crossover to insure even transition
between components

• 90 Degree conical dispersion (@ 2 kHz)

• Available with factory installed, 60W, 70.7/100V
transformer (CX12T60)

• Perfectly suited for use with Atlas Sound "Q" Series
enclosures

APPLICATIONS

The 12CX is optimized for high-ceiling applications such as
arenas, convention centers, gymnasiums and auditoriums.
The extreme high efficiency and higher "Q" of the 12CX,
with its powerful 12" speaker and 1" exit compression
driver, provides the increased available SPL often required
in these high ceiling applications. In 70.7V/100V systems,
this high efficiency can also result in lower tap settings,
which can conserve amplifier power.

GENERAL DESCRIPTION

Model 12CX is a 250 watt loudspeaker that combines a

12" diameter, low frequency transducer and a 1" exit, true
compression driver. The unit features a curvilinear, treated­paper cone for lower harmonic distortion, and a built-in
crossover network for proper frequency transition between
the two reproducers. Both the low frequency reproducer
and the HF driver feature permanently aligned voice coils to
assure distortion free performance. The copper voice coils
have Kapton

®

formers. Model 12CX operates within a
frequency response range of 45 Hz -18 kHz (±10dB) with a
sensitivity of 99dB and a dispersion angle of 90°. The loud­speaker meets functional and aesthetic application require­ments by mounting a wide variety of round and square Atlas
Sound baffles and enclosures. For applications requiring
extended low-end performance, Atlas Sound offers a selec­tion of 3, 4, and 6 cu. ft. enclosures (see Q Series specifica­tion sheet #SL3-1091). In general, loudspeaker perfor­mance is significantly enhanced by larger back box size.

Model 12CXT60 identically matches the performance specifica­tions of the 12CX with the addition of a factory installed, high
efficiency, 60W, 70.7/100V step down line transformer. Wattage
taps are provided at 7.5, 15, 30 and 60 Watts (@70.7V)

Both models are designed to work optimally in any Atlas
Sound "Q" series high volume enclosure (Q4612, Q4712,
Q4812), allowing for a complete high output solution.

Full Range Compression Driver Coaxial Speaker System

Frequency Response (±10dB) Measured in Q4812 45 Hz to 18 kHz
Frequency Response (±3dB) Measured in Q4812 65 Hz to 15 kHz

Power Handling* 250 Watts
Sensitivity 1W/1M** 99dB
Max. SPL @ 1M (Transformer Limited @ 60W) 117dB
Max. SPL @ 1M (8 Ohm @ 250 Watts) 123dB
Nominal Impedance 8Ohm
Crossover Frequency 1800 kHz
Dispersion Angle*** 90 Degrees
LF TRANSDUCER

Basket Material Cast Aluminum

Cone Material Treated Paper
Surround Material & Dampening Cloth Edge
Voice Coil Diameter 2.5" (63.5mm)
Magnet Weight 70 oz.

HF COMPRESSION DRIVER

Diaphragm Material Titanium
Voice Coil Diameter 2" (51mm)
Voice Coil Former Material Kapton

®

Voice Coil Material Copper
Throat Diameter 1" (25mm)
Magnet Weight 40 oz. (1244g)

Top Plate Thickness 0.218" (5.56mm)
Transformer (12CXT60 Only) Frequency Response: 33 Hz to 21 kHz (±2dB)

Primary Taps @ 70.7V: 60,30,15,7.5

Maximum Insertion Loss 1dB

Diameter & Depth 12.875" (310mm) Dia. & 8" (203mm) Deep
Mounting Dimensions 11.625" (295mm) Bolt Circle
Net Weight (Less Transformer) 21 lbs (4479g)
Warranty 5 Years
Recommended Enclosure For Maximum

Low Frequency Performance**** Atlas Sound Q4812 (6 Ft

3

, .169m3)

* Rated power based on EIA specification - The 12CX is designed to comply with the power test described in EIA Standard RS-426A. The

EIA test spectrum is applied for eight hours. This procedure provides a rigorous test of both thermal and mechanical failure modes.

**

Averaged from 500 Hz to 2.5 kHz

*** Dispersion angle = 6dB down point at 2 kHz
**** Although low frequency performance is maximized when Atlas Sound model Q4812 enclosure is utilized. Atlas Sound models 12CX & 12CXT60 will

also work quite well with Atlas Sound Q series enclosure models: Q4612, Q4712 & Q4812. Model Q4412 may also be used however, fiberboard
must be removed from the bottom of the enclosure to provide sufficient clearance for the loudspeaker.

1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: [phone] / FAX [phone]

AtlasSound.com

ARCHITECT AND ENGINEER
SPECIFICATIONS

12CX

Frequency response range shall be 58 Hz to 15 kHz, ±3dB.
Sensitivity shall be 99dB at 1 watt, 1 meter. Voice coil impedance
shall be 8 ohms (nominal). Low frequency voice coil diameter shall
be 2.5" (63.5mm). The maximum depth of the loudspeaker shall not
exceed 8" (203mm). The low frequency reproducer cone shall be a
full 12" (305mm) in diameter and the high frequency reproducer
diaphragm shall be 2.5" (65mm) in diameter. The woofer shall have
a 70 oz. (1984g) ceramic magnet. The tweeter shall have a 20 oz.
(567g) ceramic magnet. The two reproducer sections shall be cou­pled through a built-in crossover network. The crossover frequency
shall be at 1800 Hz. Conical dispersion shall be 90 degrees at
2kHz. Unit shall be Atlas Sound 12" dia. loudspeaker Model 12CX.

12CXT60

12CXT60 transformer A& E Specifications (All other specifications
are identical to the 12CX). Transformer primary voltage shall be

70.7V or 100V with a frequency response range of 33Hz to 21kHz
(±2dB) and power taps at 7.5, 15, 30 & 60 watts. Insertion loss shall
not exceed 1dB.

Specifications subject to change without notice

© 2002 Atlas Sound LP 00602 ATS001277 RevA8/02 PP SL1-2007

POLAR RESPONSE

500 Hz

Fundamental

3rd Harmonic

2nd Harmonic

Fundamental vs. 2nd & 3rd Harmonics

Measured in Q4812 Enclosure

12CX Frequency Response

Measured in Q4812 Enclosure

12CX Impedance

Measured in Q4812 Enclosure

POLAR RESPONSE

1000 Hz

POLAR RESPONSE

2000 Hz

POLAR RESPONSE

4000 Hz

1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: [phone] / FAX [phone]

AtlasSound.com