JBL CM42 User Manual

JBL Consumer Products Inc., 250 Crossways Park Dr., Woodbury, New York 11797
CM42/42AW/42V
PACKAGE
WIRING DIAGRAM
2-99 REV A
Technical Manual
CM42/42AW/42V
SPECIFICATIONS
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
• Nominal Impedance: 6 ohms
• Max Amp Power: 80 Watts
• Frequency Response: 60 Hz – 20 kHz
• Sensitivity: 88 dB 1 Watt @ 1 Meter
• Crossover Frequency: 4 kHz
SYSTEM COMPONENTS:
• Cabinet: CM42/42AW/42V (Not For Sale)
• Grille: CM42/42V (Black) WI0720-B
CM42AW (Black) WI0720-1B
CM42/42V (White) WI0720-W
CM42AW (White) WI0720-1W
• Low Frequency CM42/42V - 4” Shielded
Transducer: Polylaminate Cone (CM40WO)
CM42AW - 4” Shielded
Polylaminate Cone
(B10AH85PR-03DW)
DC Resistance: 3.4 ohms ±10%
BLU
BLK
WHT
INPUT
L.F.
C2
CM42AW
3.9µF/100V
CM42V
3.3µF/100V
CM42
3.3µF/100V
R1
2.7Ω
5W
C1
10µF
100V
L1
CM42AW 1.3mH
CM42V 1.0mH
CM42 1.0mH
L2
CM42AW 0.39mH
CM42V 0.3mH
CM42 0.3mH
H.F.
NOTE: CM42V IS SOLD AS A
SINGLE LOUD SPEAKER
Owner’s Manual AI0197
Warranty Card AI0193
Rubber Feet (8)
CM42/42AW/42V (BLK) WI0742-B
CM42/42AW/42V (WHT) WI0742-W
Upper/Lower Foam
CM42/42AW WP0254
CM42V WP0261
Packaging
Carton, Beauty
CM42 (BLK) WG443-B
CM42 (WHT) WG443-W
CM42AW (BLK) WG443-1B
CM42AW (WHT) WG443-1W
CM42V (BLK) A006-446
YEL
LMP(2)
SYSTEM COMPONENTS: (cont’d)
• High Frequency CM42/42AW/42V -1/2” Titanium
Transducer: Dome (DT397TH-2)
DC Resistance 6.6 ohms ±10%
• Crossover Network: CM42/42V (WI0722) CM42AW (WI0727)
AURAL SWEEP TEST SPECIFICATIONS:
A. System Aural Sweep Test: 4.0V Input, 60 Hz to 20 kHz
B. L.F. Aural Sweep Test: 3.0V Input, 60 Hz to 5 kHz
C. H.F. Aural Sweep Test: 2.0V Input, 3 kHz to 20 kHz
PHYSICAL SPECIFICATIONS:
• Enclosure Dimensions: 10 x 5 3/4 x 4 in. (H x W x D)
(225mm x 147mm x 104mm)
WEIGHT: 6 lbs. (2.7 kg.) Each
(CM42/42AW Sold in Pairs)
(CM42V Single)
WARRANTY INFORMATION:
• Refer to the Warranty Statement packed with each product.
SCHEMATIC CM42 - 42AW - 42V (As Noted)
Driver,
High Freq
CM42/42AW/42V
(DT397TH-2)
Network
CM42/42V(WI0722)
CM42AW (WI0727)
Driver,
Low Freq
CM42/42V
(CM40WO)
CM42AW
(B10AH85PR-03DW)
WHT
YEL
BLK
BLU
CM42/42AW.qxd 3/1/99 11:38 AM Page 1

JBL CM42 Specifications

General

Brand	JBL
Model	CM42
Category	Speaker System
Language	English

Summary

Speaker Specifications

Acoustic and Electrical Performance

Details key performance metrics like impedance, max power, frequency response, sensitivity, and crossover frequency.

System Components Overview

Lists the main parts of the speaker system, including cabinet and grille part numbers.

Low Frequency Transducer Details

Specifies the low-frequency transducer, including its cone material and model number.

DC Resistance Specification

States the DC resistance value for the low-frequency transducer.

Aural Sweep Test Parameters

Outlines the voltage and frequency ranges for aural sweep testing.

Physical Dimensions and Weight

Provides the enclosure dimensions and the weight of the speaker unit.

Warranty Information Reference

Directs users to the warranty statement included with the product.

Wiring and Schematic Diagram

Schematic Diagram

Illustrates the complete wiring schematic for the CM42, 42AW, and 42V models.

Component Exploded View

Cabinet and Mounting Components

Details the speaker cabinet, mounting plate, and terminal cup assembly.

Grille and Front Assembly

Shows the grille, logo, pad, retainer, and spring parts.

Driver and Baffle Components

Illustrates the high and low-frequency drivers, baffle, and trim ring.

Network and Associated Parts

Depicts the crossover network and its connection points.