Technical Manual
S4HC
Synthesis Four
AURAL SWEEP TEST SPECIFICATIONS:
• System Aural Sweep Test
6.0V Input 60Hz to 20kHz
• L.F. Aural Sweep Test
5.0V Input 60Hz to 1kHz
• M.F. Aural Sweep Test
5.0V Input 500Hz to 4kHz
• H.F. Aural Sweep Test
2.83V Input 3kHz to 20kHz
PHYSICAL SPECIFICATIONS:
• Enclosure Dimensions
14" x 23-7/8" x 5-1/2"
(H x W x D)
(356mm x 606mm x 140mm)
• Weight
32 lb (14.5kg) Each
WARRANTY:
• Refer to Warranty Statement packed with each product
* The maximum recommended amplifier power rating will
ensure proper system headroom to allow for occasional
peaks. We do not recommend sustained operation at
these maximum power levels.
JBL Consumer Products, Inc., 250 Crossways Park Drive, Woodbury, New York 11797
Rev 0 5/2003
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4
PACKAGING
S4HC WIRING DIAGRAM
S4HC
SCHEMATIC
(8)
(8)
(4)
LOW-FREQUENCY TRANSDUCER
335899-001
LOW-FREQUENCY TRANSDUCER
335899-001
MID-FREQUENCY TRANSDUCER
336327-001
HIGH-FREQUENCY TRANSDUCER
335663-001
NETWORK
338527-001
.250
L3
1.6mH
L2
0.46mH
L4
0.24mH
L1
1.9mH
.205
.205
.250
.110
.205
L.F.
M.F.
H.F.
INPUT
C1
50uf
100V
C4
4.0uf
100V
C2
30uf
250V
C3
16uf
100V
R7
2.7 Ohm
10W
R5
0 Ohm
10W
R2
3.9 Ohm
10W
R1
2.7 Ohm
10W
R6
12 Ohm
10W
GRN
GRN/BLK
YEL
WHT
BLK
RED
WHT/BLK
YEL/BLK
C5
7.0uf
100V
.205
GRN/BLK
.250
GRN
R3
80 Ohm
10W
R4
80 Ohm
10W
R8
33 Ohm
10W
S4HC Synthesis Four
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
• Nominal Impedance
6
Ω
• Max Amp Power
250 watts*
• Frequency Response
65Hz – 20kHz
• Sensitivity
91dB (2.83 volts @ 1 meter)
• Crossover Frequency
600Hz, 3.5kHz
SYSTEM COMPONENTS:
• Grille
337598-001
• Low-Frequency Transducer Dual 6-1/2" (165mm)
Titanium-alloy
inverted-dome, shielded
335899-001
DC Resistance
5.0 ohms ±10%
• Midrange-Frequency 4"
(102mm)
Titanium
Transducer
inverted-dome
336327-001
DC Resistance
4.1 ohms ±10%
• High-Frequency Transducer 1" (25mm) Pure-titanium-
dome, rubber surround,
shielded (335663-001)
DC Resistance
3.4 ohms ±10%
• Crossover Network
338527-001
