JBL D38 Technical Manual

Technical Manual
D38
Decade Series
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
• Nominal Impedance
• Max Amp Power
• Frequency Response
• Sensitivity
• Crossover Frequency

SYSTEM COMPONENTS:

• Enclosure
• Grille
• Low Frequency
Transducer
DC Resistance
• Mid Frequency
Transducer
DC Resistance
PACKAGING
Foam Corners (8)
59658
Plastic Bag
JBL Consumer Products, Inc. 250 Crossways Park Dr., Woodbury, New York 11797
8 ohms
175 watts
50 Hz - 20 kHz (-6dB)
92 dB (1 watt @ 1 meter)
4.5 kHz/10 kHz
D38 (Not for Sale)
334793-001
8" (381mm) Paper Cone
334624-001
7.2 ohms ±10%
4" (101mm) Paper Cone
334657-001
3.5 ohms ± 10%
Owner's Manual
334794-001
Warranty Card
331994-001
Survey Card
331384-001
OWNER'S
MANUAL
Outer Carton
334802-001
• High Frequency
Transducer
DC Resistance
Crossover Network
AURAL SWEEP TEST SPECIFICATIONS:
• System Aural Sweep Test
• L.F. Aural Sweep Test
• M.F. Aural Sweep Test
• H.F. Aural Sweep Test
PHYSICAL SPECIFICATIONS:
• Enclosure dimensions:
• Weight
WARRANTY:
• Refer to Warranty Statement packed with each product.

WIRING DIAGRAM

High Frequency
Transducer
334659-001
Mid frequency
Transducer
334657-001
Low Frequency
Transducer
334624-001
D38 SCHEMATIC
+IN
INPUT
–IN
2.4mfd 50V
2" (51mm) Paper Cone
334659-001
3.3 ohms ± 10%
334787-001
6.0V Input 50 Hz to 20 kHz
5.0V Input 50 Hz to 5 kHz
2.0V Input 4 kHz to 10 kHz
2.0V Input 9 kHz to 20 kHz
16³⁄₄" x 10³⁄₄" x 12" (H x W x D)
425 x 273 x 305 mm
17 lbs. (7.7kg) Each
Crossover Network
334787-001
L1
.25mh
17" GREEN
250
L.F.
17" GREEN/BLK
110
C2
2.7mfd 50V
17" WHITE
205
M.F.
17" WHITE/BLK
110
C1
17" YELLOW
187
H.F.
17" YELLOW/BLK
110
+
–
+
–
+
–
9-99