tm
D e c a d e
D38, D315
Simple Setup Guide
thank youfor choosing JBL. For more than 50 years, JBL has
been involved in every aspect of music and film recording and
reproduction, from live performances to monitoring the recordings you
play in your home, car or office.
We’re confident that the JBL loudspeakers you have chosen will provide
every note of enjoyment that you expected – and that when you think
about purchasing additional audio equipment for your home, car or
office, you will once again choose JBL.
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two.
Speaker Connections
Connection Tips
Speakers and electronics terminals have corresponding (+) and
(–) terminals. It is important to connect both speakers identi-
cally: (+) on the speaker to (+) on the amplifier and (–) on the
speaker to (–) on the amplifier. Wiring “out of phase” results in
thin sound, weak bass and a poor stereo image.
RIGHT
LEFT
–
+
–
+
– +
– +
Speaker Outputs
Troubleshooting
If there is no sound from
any of the speakers, check
the following:
If the system plays at low
volumes but shuts off as
volume is increased, check
the following:
If there is low bass output,
check the following:
• Make sure the polarities
(+ and –) of the left and
right “Speaker Inputs” are
connected properly.
• Receiver/amplifier is on and
a source is playing.
• Review proper operation of
your receiver/amplifier.
• Check all wires and connec-
tions between receiver/
amplifier and speakers.
• Make sure all wires are con-
nected. Make sure none of the
speaker wires are frayed, cut
or punctured.
If there is no sound coming
from one speaker, check the
following:
• If more than one pair of
main speakers is being used,
check the minimum imped-
ance requirements of your
receiver/amplifier.
• Check the “Balance” control
on your receiver/amplifier.
• Check all wires and connec-
tions between receiver/
amplifier and speakers.
• Make sure all wires are
connected. Make sure none of
the speaker wires are frayed,
cut or punctured.
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Specifications
D38
D315
Frequency Response (–6dB): 50Hz – 20kHz
40Hz – 20kHz
Recommended Maximum
Amplifier Power*: 175 watts
250 watts
96dB
8 ohms
15"
Sensitivity @ 1 watt/1 meter: 92dB
Nominal Impedance: 8 ohms
Woofer: 8"
Midrange: 4"
4"
Tweeter: 2"
2"
Dimensions (H x W x D): 16-3/4 x 10-3/4 x 12 inches
30-7/8 x 16-1/4 x 11-1/2 inches
(784 x 413 x 292mm)
(425 x 273 x 305mm)
Weight (each): 17 lbs/7.7 kg
35 lbs/15.9 kg
*The maximum recommended
amplifier power rating will
ensure proper system head-
room to allow for occasional
peaks. We do not recommend
sustained operation at these
maximum power levels.
Occasional refinements may
be made to existing products
without notice, but will
always meet or exceed origi-
nal specifications unless
otherwise stated.
Declaration of Conformity
We, JBL Europe A/S
Kongevejen 194B
DK-3460 Birkerød
DENMARK
JBL Consumer Products
250 Crossways Park Drive, Woodbury, NY 11797
8500 Balboa Boulevard, Northridge, CA 91329
1-800-336-4JBL (4525) (USA only)
declare in own responsibility, that the products described
in this owner’s manual are in compliance with technical
standards:
EN 50081-1:1992
EN 50082-1:1992
1998 JBL, Incorporated.
JBL is a registered trademark
of JBL, Incorporated.
©
9/98
Part No.: D38,D315OM
Steen Michaelsen
JBL Europe A/S
Birkerød. DENMARK. 9/98
A Harman International Company
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