JBL A/B Studio S38II Technical Manual

Technical Manual
S38
II
(A/B) Studio
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
• Nominal Impedance
• Max Amp Power
• Frequency Response
• Sensitivity
• Crossover Frequencies

SYSTEM COMPONENTS:

• Enclosure
• Grille
• Low-Frequency Transducer 8" (133mm) PolyPlas,
DC Resistance
• Mid-Frequency Transducer
DC Resistance
• High-Frequency Transducer 1" (25mm) titanium dome,
DC Resistance
• Crossover Network

PACKAGING

Upper/Lower
Foam
338029-001
Microfoam
(2 pcs.)
JBL Consumer Products, 250 Crossways Park Dr., Woodbury, New York 11797
™ Series
8 ohms
175 watts
45Hz – 20kHz (–3dB)
89dB (1 watt @ 1 meter)
800Hz, 3200Hz
S38 (not for sale)
II
338038-001
™
shielded (335149-002)
4.4 ohms ±10%
4" (101mm) PolyPlas, ™
shielded (338040-001)
4.3 ohms ±10%
shielded (338042-001)
3.4 ohms ±10%
335410-003
OWNER'S
MANUAL
Owner's Manual
338018-001
Warranty Card
338322-001
Survey Card
331384-001
Felt Foot Kit
335634-001
Outer Carton
338025-001

AURAL SWEEP TEST SPECIFICATIONS:

• A. System Aural Sweep Test 6.0V Input 40Hz to 20kHz
• B. L.F. Aural Sweep Test
• C. M.F. Aural Sweep Test
• D. H.F. Aural Sweep Test

PHYSICAL SPECIFICATIONS:

• Enclosure dimensions
(H x W x D)
• Weight

WARRANTY:

• Refer to Warranty Statement packed with each product.

WIRING DIAGRAM

Driver
High-Frequency
338042-001
YELLOW/BLACK
Driver
Mid-Frequency
338040-001
Driver
Low-Frequency
335149-002
S38 SCHEMATIC
II
L4
2.2mH
RED
+IN
INPUT
BLACK
–IN
C7
15µF/100V
C4
0.01µF/250V
C5
4µF/100V
2.4 ohms
10W
C6
0.01µF/250V
6.0V Input 40Hz to 1kHz
4.0V Input 500Hz to 4kHz
2.83V Input 3kHz to 20kHz
11-1/2" x 17-1/2" x 11-3/4"
292mm x 445mm x 298mm
56 lb/25.4kg (sold in pairs)
Crossover Network
335410-003
YELLOW
WHITE
WHITE/BLACK
GREEN
GREEN/BLACK
GREEN
C1
C2
60µF
0.01µF
100V
250V
R1
2.4 ohms/10W
BLK/GREEN
R2
L2
4.7 ohms
300µH
10W
WHT/BLACK
R6
20 ohms
5W
WHITE
YELLOW
R7
R8
L5
3.6 ohms
0.1µH
5W
YEL/BLK
+
250
L.F.
–
205
110 –
M.F.
+
205
+
205
H.F.
–
110
07/02