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
+
+
–
–
