JBL S312 User Manual
Technical Manual
S312
Studio Series
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
• Nominal Impedance 8 ohms
• Max Amp Power 250 watts
• Frequency Response 35 Hz - 20 kHz
• Sensitivity 92 dB (1 watt @ 1 meter)
• Crossover Frequency 750 Hz, 3000 Hz
SYSTEM COMPONENTS:
• Enclosure S312 (Not for sale)
• Grille 335147-002
• Low Frequency Transducer 12
”
PolyPlas™Shielded
(335151-001)
DC Resistance 5.6 ohms ±10%
• Mid Frequency Transducer 4” PolyPlas
™
Shielded
(335439-001)
DC Resistance 4.3 ohms ±10%
• High Frequency Transducer 1” (25mm) Titanium dome
Shielded (335663-001)
DC Resistance 3.4 ohms ±10%
• Crossover Network 335412-001
AURAL SWEEP TEST SPECIFICATIONS:
• A. System Aural Sweep Test 6.0V Input 30 Hz to 20 kHz
• B. L.F. Aural Sweep Test 6.0V Input 30 Hz to 1 kHz
• C. M.F. Aural Sweep Test 4.0V Input 500 Hz to 4 kHz
• D. H.F. Aural Sweep Test 2.83V Input 3 kHz to 20 kHz
PHYSICAL SPECIFICATIONS:
• Enclosure dimensions: 41” x 16” x 12⁷⁄₈” (H x W x D)
1041mm x 406mm x 327mm
• Weight 68 lbs. /31kg Each
WARRANTY:
• Refer to Warranty Statement packed with each product.
PACKAGING
02/00
JBL Consumer Products, Inc. 250 Crossways Park Dr., Woodbury, New York 11797
S312 Studio Series
S312 SCHEMATIC
WIRING DIAGRAM
Upper/Lower
Foam
335408-001
Driver
High Frequency
335663-001
Driver
Mid.Frequency
335439-001
– +
YELLOW
YELLOW/BLACK
WHITE
WHITE/BLACK
Crossover Network
335412-001
Outer Carton
335403-001
Microfoam
(2pcs.)
Driver
Low Frequency
335151-001
OWNER'S
MANUAL
Owner's Manual
335404-001
Warranty Card
331994-001
Survey Card
331384-001
+IN
–IN
RED
INPUT
BLACK
L1
3.5mH
C3
20µF/100V
C4
0.01µF/250V
C5
6µF/100V
C6
0.01/250V
400µH
R4
0.62/10W
GREEN
GREEN/BLACK
C1
50µF
100V
L2
1.2/10W
2.4/10W
R2
R5
10/5W
GREEN
C2
0.01µF
250V
R1
BLK/GREEN
WHT/BLACK
R3
40/5W
WHITE
YELLOW
L3
220µH
YEL/BLK
250
L.F.
205
110
205
205
110
+
–
–
M.F.
+
+
H.F.
–
S312
Studio Series
S312 Studio Series
02/00
JBL Consumer Products, Inc. 250 Crossways Park Dr., Woodbury, New York 11797
EXPLODED VIEW
Screws (6)
#6 x .75 HXS- HD
908302-012
Tweeter
335663-001
Screws (2)
#6 x .375" PPH
903401-006
Faceplate
Gasket
335667-001
Grille retainer (8)
333249-001
Flower Pot
334072-001
Enclosure
S312 (Not for Sale)
Screw (4)
#6 x .75"
PPH 63563
Terminal cup
335471-002
Binding
Post Nut (2)
T879-01
Grille
335147-002
Faceplate
335157-001
Screw (4)
#6 x 75" PPH
61867
Screws (8)
#8 x .75 HXS- HD
903802-012
Midrange
335439-001
Screws (4)
#6 x .75"
PPH 63563
Network
335412-001
Woofer
335151-001
Port T ube
335155-001
Foot (4)
335429-001
Bump-on
Pads (4)
330104-001
Screws (4)
#8 x 1"
HXS-HD BLK
72216
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