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
– +
