JBL Studio 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.
Owner's Manual
335404-001
Warranty Card
331994-001
Survey Card
331384-001
OWNER'S
MANUAL
Upper/Lower
Foam
335408-001
Microfoam
(2pcs.)
Outer Carton
335403-001
PACKAGING
02/00
JBL Consumer Products, Inc. 250 Crossways Park Dr., Woodbury, New York 11797
S312 Studio Series
Driver
High Frequency
335663-001
Driver
Mid.Frequency
335439-001
Driver
Low Frequency
335151-001
YELLOW/BLACK
WHITE/BLACK
GREEN/BLACK
WHITE
GREEN
YELLOW
Crossover Network
335412-001
– +
+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
L1
3.5mH
R1
2.4/10W
C1
50µF
100V
C2
0.01µF
250V
R3
40/5W
R2
1.2/10W
R4
0.62/10W
L2
400µH
C3
20µF/100V
C4
0.01µF/250V
C5
6µF/100V
R5
10/5W
L3
220µH
C6
0.01/250V
S312 SCHEMATIC
WIRING DIAGRAM

JBL Studio S312 Specifications

General

Frequency Response	35Hz - 20kHz
Sensitivity	91dB
Impedance	8 Ohms
Type	Floorstanding
Tweeter	1" Titanium
Woofer	12" PolyPlas Cone

Summary

Acoustic and Electrical Specifications

Nominal Impedance

Specifies the speaker's resistance to electrical current.

Max Amp Power

Indicates the maximum amplifier power the speaker can handle.

Frequency Response

Defines the range of sound frequencies the speaker can reproduce.

Sensitivity

Measures sound output level relative to input power.

Crossover Frequency

Points where the audio signal is divided between speaker drivers.

System Components

Low Frequency Transducer

Details the 12" PolyPlas™ shielded woofer.

Mid Frequency Transducer

Details the 4" PolyPlas™ shielded midrange driver.

High Frequency Transducer

Details the 1" Titanium dome shielded tweeter.

Crossover Network

Part number for the internal crossover network.

Aural Sweep Test Specifications

System Aural Sweep Test

Test parameters for the overall system's frequency response.

L.F. Aural Sweep Test

Test parameters for the low-frequency driver's response.

M.F. Aural Sweep Test

Test parameters for the midrange driver's response.

H.F. Aural Sweep Test

Test parameters for the high-frequency driver's response.

Physical Specifications

Enclosure Dimensions

Specifies the height, width, and depth of the speaker enclosure.

Weight

Indicates the weight of each speaker unit.

Wiring Diagram

Packaging

Exploded View