JBL Studio S312II User manual

Technical Manual
S312II
Studio™Series
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
•Nominal Impedance 8 ohms
•Max Amp Power 250 watts
•Frequency Response 35Hz – 20kHz
•Sensitivity 92dB (1 watt @ 1 meter)
•Crossover Frequencies 750Hz, 3000Hz
SYSTEM COMPONENTS:
•Enclosure S312II (not for sale)
•Grille 338778-001
•Low-Frequency Transducer 12" (305mm) PolyPlas,
™shielded
(335151-002)
DC Resistance 5.6 ohms ±10%
•Mid-Frequency Transducer 4" (101mm) PolyPlas,
™ shielded
(338040-001)
DC Resistance 4.3 ohms ±10%
•High-Frequency Transducer 1" (25mm) titanium dome,
shielded (338042-001)
DC Resistance 3.4 ohms ±10%
•Crossover Network 335412-002
AURAL SWEEP TEST SPECIFICATIONS:
•A. System Aural Sweep Test 6.0V Input 30Hz to 20kHz
•B. L.F. Aural Sweep Test 6.0V Input 30Hz to 1kHz
•C. M.F. Aural Sweep Test 4.0V Input 500Hz to 4kHz
•D. H.F. Aural Sweep Test 2.83V Input 3kHz to 20kHz
PHYSICAL SPECIFICATIONS:
•Enclosure dimensions: 41" x 14-3/4" x 12-1/4"
(H x W x D) 1041mm x 375mm x 311mm
•Weight 77 lb/35kg each
WARRANTY:
• Refer to Warranty Statement packed with each product.
Owner’s Manual
338018-001
Warranty Card
338322-001
Survey Card
331384-001
Spike Foot Kit
338076-001
OWNER’S
MANUAL
Upper/Lower
Foam
337754-001
Microfoam
(2 pcs.)
Outer Carton
338056-001
PACKAGING
07/02
JBL Consumer Products, 250 Crossways Park Dr., Woodbury, New York 11797
S312II Studio™Series
Driver
High-Frequency
338042-001
Driver
Mid-Frequency
338040-001
Driver
Low-Frequency
335151-002
YELLOW/BLACK
WHITE/BLACK
GREEN/BLACK
WHITE
GREEN
YELLOW
Crossover Network
335412-002
+IN
–IN
INPUT
GREEN
BLK/GREEN
WHT/BLACK
WHITE
YELLOW
YEL/BLK
RED
BLACK
L.F.
M.F.
+
H.F.
250
+
+
205
205
–
110
–
205
–
110
L4
4.4mH
R6
5.1 ohms
10W
C7
40µF
100V
C2
0.01µF
250V
R3
40 ohms
5W
R7
2.4 ohms
10W
R8
2.4 ohms
10W
L2
400µH
C3
20µF/100V
C4
0.01µF/250V
C8
9µF/100V
R5
10 ohms
5W
L3
220µH
C6
0.01µF/250V
S312II SCHEMATIC
WIRING DIAGRAM

Network
335412-002
Port Tube
337753-001 Feet (4)
338037-001
Grille
338778-001
Grille Retainers (8)
333249-001
Enclosure
S312II (not for sale)
Screws (8)
#8 x .75" HXS-HD
903802-012
Woofer
335151-002
Screws (4)
#6 x .75"
PPH 63563
Terminal Cup
335471-002
Binding-
Post Nuts (2)
T879-01
Screws (4)
#6 x .75"
PPH 63563
Faceplate
Gasket
338036-001 Flower Pot
334072-001
Faceplate
337643-001
Screws (6)
#6 x .75" HXS-HD
908302-012
Screws (2)
PPH H/L 6-19 x 5/8 Znc
905402-010
Tweeter
338042-001
Bar, Hold Down
338059-001
Midrange
338040-001
Screws (4)
#6 x .75" PPH
61867
S312II
Studio™Series
S312II Studio™Series
07/02
JBL Consumer Products, 250 Crossways Park Dr., Woodbury, New York 11797
EXPLODED VIEW