JBL JBL4638 User Manual

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
+
+
–
–

JBL JBL4638 Specifications

General

Brand	JBL
Model	JBL4638
Category	Speakers
Language	English

Summary

Product Specifications

Acoustic and Electrical Details

Details impedance, power capacity, frequency response, sensitivity, and crossover frequencies.

System Components and Tests

Lists cabinet, transducer, DC resistance, terminal pad, and aural sweep test specifications.

Physical and Shipping Information

Covers enclosure dimensions, shipping weight, and warranty reference.

Package Contents

Packaging Components

Lists warranty sheet, end pads, packaging, and cartons for shipping and handling.

Wiring Diagram

Speaker System Wiring

Illustrates the electrical connections for the speaker system, including input and driver terminals.

Component Exploded View

Component Identification

Details individual parts and hardware used in the speaker assembly, with part numbers.