JBL Incorporated, 8500 Balboa Boulevard, P.O. Box 2200, Northridge, California 91329 U.S.A.
JBL4638
REV D
PACKAGE
WIRING DIAGRAM
10-03
Technical Manual
JBL4638
SPECIFICATIONS
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
• Nominal Impedance:
4 ohms
• Power Capacity:
800W AES
• Frequency Response:
45 Hz (–3 dB)
• Sensitivity:
100 dB, 1 Watt @ 1 Meter
• Crossover Frequencies:
High-Pass 40 Hz,
12-dB/Octave Min.
Low-Pass 500 or 800 Hz,
12 to 24 dB/Octave
SYSTEM COMPONENTS:
• Cabinet:
C4508A (Not For Sale)
• Grille:
N/A
• Low Frequency
380mm (15 in.) Cone
Transducer:
Transducer (2035HPL) (2)
SYSTEM COMPONENTS:
(cont’d)
DC Resistance:
3.9 ohm ± 10% Aluminum Wire
• Terminal Pad:
60689-02
AURAL SWEEP TEST SPECIFICATIONS:
A. System Aural Sweep Test:
7.0V Input, 20 Hz to 20 kHz
B. L.F. Aural Sweep Test:
7.0V Input, 20 Hz to 600Hz
PHYSICAL SPECIFICATIONS:
• Enclosure Dimensions:
991mm x 648mm x 451mm D
(39.0 x 25.5 x 17.75 in. D)
SHIPPING WEIGHT:
147 lbs. (66.7 kg.)
WARRANTY INFORMATION:
• Refer to Warranty Statement packed with each product.
Warranty 59660
Specification Sheet
Under Pad
End Pad (4)
69668
Packaging (8)
49790P
Carton
990-00104-00
Driver, Low Freq
2035HPL (2)
(73890X)
Cone Repl
C8R2035
Terminal
Pad
60689-02
SCHEMATIC 4638
RED
RED
INPUT
NOTE:
RED
BLK
BLK
RED
BLK
BLK
RED
BLK
L.F.
2035HPL
L.F.
2035HPL
+
+
–
–
