JBL SCT55
Manual de Servicio

Technical Manual

CST55 Cinema Sound Series
ACOUSTIC & ELECTRICAL SPECIFICATIONS: � Nominal Impedance 8 ohms � Max Amp Power 150 watts* � Frequency Response 55Hz � 30kHz (�6dB) � Sensitivity 90dB (2.83V @ 1 meter) � Crossover Frequencies 800Hz, 3.2kHz; 12/24dB/octave SYSTEM COMPONENTS: � Grille � Low-Frequency Transducer AURAL SWEEP TEST SPECIFICATIONS: � System Aural Sweep Test 6.0V Input 50Hz to 20kHz � L.F.1 Aural Sweep Test 5.0V Input 50Hz to 1kHz � L.F.2 Aural Sweep Test 5.0V Input 50Hz to 3.5kHz � H.F. Aural Sweep Test 2.83V Input 3kHz to 20kHz PHYSICAL SPECIFICATIONS: � Dimensions (H x W x D) 46" x 8" x 6-1/2" including wall-mount (1168mm x 203mm x 165mm) bracket and grille � Weight 17 lb (7.7kg) 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.

244-050-05158-0BAE Dual 5" (130mm) PolyPlas� cones, video-shielded 13PR36EZR-JW02 9.8 ohms ±10% 3/4" (19mm) Titanium-laminate dome, video-shielded 79DM19AJ-DT07 3.2 ohms ±10% 013-7600-05176-E

DC Resistance � High-Frequency Transducer

DC Resistance � Crossover Network

PACKAGING
32 29 31
RED BLK

CROSSOVER NETWORK 013-7600-05176-E

HIGH-FREQUENCY TRANSDUCER 79DM19AJ-DT07 BLU WHT WHT

GRN

WHT

YEL

1 36 35
+

LOW-FREQUENCY TRANSDUCERS (2) 13PR36EZR-JW02

CST55 SCHEMATIC
L2 0.39mH C2 13uf 100V R1 2.4ohm 5W
�

150mm GRN L3 2.7mH C3 13uf 100V

.250

INPUT

R2 6.8ohm 5W 150mm WHT .205 250mm YEL C1 5.2uf 100V 250mm WHT

30

L1 3.6mH

.250

BTM L.F.2
.205 .187

34 33 Legend on Page 2

R3 2ohm 5W

C4 6uf 100V

120mm BLU L4 0.35mH

H.F.
.110
120mm WHT

JBL Consumer Products, 250 Crossways Park Drive, Woodbury, New York 11797
3/06

CST55 Cinema Sound Series

TOP L.F.1