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JBL Incorporated, 8500 Balboa Boulevard, P.O. Box 2200, Northridge, California 91329  U.S.A.

JBL SR4718X 

REV Q

PACKAGE

WIRING DIAGRAM

04-08

Technical Manual

JBL SR4718X

SPECIFICATIONS

ACOUSTIC & ELECTRICAL SPECIFICATIONS:

• Nominal Impedance:

4 ohm

• Power Capacity:

600W Continuous Pink Noise

• Frequency Range:

30 Hz – 1.1 kHz (–10 dB)

• Sensitivity:

95 dB SPL, 1 Watt @ 1 Meter

• Crossover Frequency:

N/A

SYSTEM COMPONENTS:

• Cabinet:

SR4718X (Not For Sale)

• Grille:

128-00415-00

• Low Frequency

460mm (18 in.) Paper Cone

Transducer:

Transducer (2241GPL)

• DC Resistance:

2.5 ohm ±10% Aluminum Wire

• Crossover Network:

129-00023-00

AURAL SWEEP TEST SPECIFICATIONS:

A. System Aural Sweep Test:

7.0V Input, 20 Hz to 1.2 kHz

B. L.F. Aural Sweep Test:

10.0V Input, 20 Hz to 1.2 kHz

PHYSICAL SPECIFICATIONS:

• Enclosure Dimensions:

610mm x 635mm x 460mm D
(24.0 x 25.0 x 18.1 in. D)

• Weight:

108 lbs. (48.9 kg.)

WARRANTY INFORMATION:

• Refer to Warranty Statement packed with each product.

Warranty 59660
User’s Guide
SR-X Series
981-00052-04

Carton
SR4718X
990-00176-00

Microfoam (8)
Packaging
49790P

Filler (4)
Top & Bottom 
991-00202-00

Network 
129-00023-00

SCHEMATIC (129-00023-00)

Speaker, Low Freq 
2241GPL (71126-
03X)
Cone Repl
C4R2241

GRN

GRN/BLK

PC BOARD

Neutrik

Connector

NL4MPR

Neutrik

Connector

NL4MPR

GRN/BLK

GRN

RED

YEL

1

4

1

4

C

D

1

4

IN/OUT

Housing

+

2/

2

Mode

+

1/

1

Mode

IN/OUT

L.F.
2241G

+

1

1

+

+

2

2

+

1

1

+

2

2

– +

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