JBL CENTURY GOLD User Manual / Operation Manual ▷ View online
The optimal method of powering the
Century Gold
system is with
two amplifiers, one for low frequencies and one for the mid/high frequencies.
It is necessary to use a high-quality active crossover module. Since each
amplifier only drives a limited frequency range, this method allows the
user to select amplifiers with the desired sonic character for low and
high frequencies.
Make sure that the input sensitivity of each of the amplifiers is the same,
or that input level controls are provided to maintain the proper low-to-
mid/high balance. If two identical stereo amplifiers are used, one may be
located near each loudspeaker to drive low and mid/high frequency
sections through short wire runs.
The external “strapping bars” that normally connect the
Century
Gold’s
low-frequency and high-frequency terminals must be removed
before bi-amping.
To remove the shorting straps, simply loosen and slide the bars off to the
side (Figure 11).
If the system is wired in the bi-amp method, set the Bi-Amp/Normal
switch to the Bi-Amp position (Figure 12 and Figure 12a).
No.
11
LOW FREQUENCY
HIGH FREQUENCY
JBL INCORPORATED
8500 BALBOA BLVD. NORTHRIDGE, CA USA
8500 BALBOA BLVD. NORTHRIDGE, CA USA
Figure 12 Bi-Amp Connecting Method
AMP
NORMAL/
BI-WIRE
BI-WIRE
Bi-Amping Connections
BATTERY
BI-AMP
NORMAL/
BI-WIRE
BI-WIRE
Figure 12a Bi-Amp Switch Setting
final cg om 5-15 7/20/98 1:14 PM Page 5
The
Century Gold
loudspeaker systems have an oiled finish. Cleaning
should be done with an untreated dust cloth. Do not use conventional
furniture waxes and polishes, which are not designed for oiled finishes. If
touch-up is necessary or the finish appears to be drying out, the surface
may be re-oiled with a commercially available oil-finishing preparation.
Do not use any solvents on the finish.
The grille may be gently vacuumed. Stains may be removed with an aerosol
cleaner, following its instructions. Do not use any solvents on the grille.
All wiring connections should be inspected and cleaned or remade
periodically. The frequency of maintenance depends on the metals involved
in the connections, atmospheric conditions, and other factors, but once per
year is the minimum. The battery should be replaced approximately every
three years. Consult your JBL dealer for specific recommendations.
If a problem occurs, make sure that all connections are properly made and
clean. If a problem exists in one loudspeaker, reverse the speaker wires to
the left and right system. If the problem remains in the same speaker, then
the fault is with the loudspeaker. If the problem appears in the opposite
speaker, the cause is in another component or cable. In the event that your
Century Gold
loudspeaker system ever needs service, contact your
local JBL dealer.
Maintenance and Service
No.
12
final cg om 5-15 7/20/98 1:14 PM Page 4
No.
13
Frequency Response:
50Hz – 20kHz ±1.5dB
38Hz – 22kHz – 6dB
Sensitivity:
90dB for 2.83V @ 1 meter
Recommended Maximum
200 watts continuous
Power Handling:
800 watts peak
Nominal Impedance:
6 ohms
Crossover Frequencies:
600Hz, 2800Hz
Low-Frequency Transducer:
Century 1200
Mid-Frequency Transducer:
Century 500
High-Frequency Transducer:
050 Gold
1.8 cubic feet
Tuning Frequency:
32Hz
Dimensions (HxWxD):
26-1/2 x 15 x 11-7/8"
673 x 381 x 302 mm
Weight:
60 lbs
27.22 kg
System Specifications
final cg om 5-15 7/20/98 1:14 PM Page 1
Introduction
2
Low-Frequency Transducer
3
Mid-Frequency Transducer
4
High-Frequency Transducer
4
Dividing Networks
5
Battery Replacement
6
Placement
7
Speaker Connections
8
Maintenance and Service
12
System Specifications
13
JBL Consumer Products
80 Crossways Park West, Woodbury, NY 11797
1-800-336-4JBL (4525) (USA only)
©1996 JBL, Incorporated. JBL is a registered
trademark of JBL, Incorporated.
Printed in USA 5/96
Part No. CGOM96
A Harman International Company
Table of Contents
Declaration of Conformity
Kongevejen 194B
DK-3460 Birkerød
DENMARK
DK-3460 Birkerød
DENMARK
declare in own responsibility, that the loudspeakers
described in this owner’s manual are in compliance with
technical standards:
EN 50 081-1/1992
EN 50 082-1/3.1995
Steen Michaelsen
Birkerød. DENMARK. 5/96
final cg om 5-15 7/20/98 1:15 PM Page 15