Jbl D38 Users Manual Decade Owner's

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Decade Owner's Manual

9/11/98 10:26 AM

Page 1

Decade

tm

D38, D315

Simple Setup Guide

thank you

for 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.
Please take a moment to complete the enclosed profile card. It enables
us to keep you posted on our latest advancements, and helps us to
better understand our customers and to build products that meet their
needs and expectations.
JBL Consumer Products

Decade Owner's Manual

9/11/98 10:26 AM

one. Speaker Placement
D38

D315

Page 2

Decade Owner's Manual

9/11/98 10:26 AM

Page 3

two. Speaker Connections
Connection Tips
Speakers and electronics terminals have corresponding (+) and
(–) terminals. It is important to connect both speakers identically: (+) 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:
• Receiver/amplifier is on and
a source is playing.
• Review proper operation of
your receiver/amplifier.
If there is no sound coming
from one speaker, check the
following:
• Check the “Balance” control
on your receiver/amplifier.
• Check all wires and connections between receiver/
amplifier and speakers.
• Make sure all wires are
connected. Make sure none of
the speaker wires are frayed,
cut or punctured.

If the system plays at low
volumes but shuts off as
volume is increased, check
the following:
• Check all wires and connections between receiver/
amplifier and speakers.
• Make sure all wires are connected. Make sure none of the
speaker wires are frayed, cut
or punctured.
• If more than one pair of
main speakers is being used,
check the minimum impedance requirements of your
receiver/amplifier.

If there is low bass output,
check the following:
• Make sure the polarities
(+ and –) of the left and
right “Speaker Inputs” are
connected properly.

Decade Owner's Manual

9/11/98 10:26 AM

Page 4

Specifications
Frequency Response (–6dB):
Recommended Maximum
Amplifier Power*:
Sensitivity @ 1 watt /1 meter:
Nominal Impedance:

D38

D315

50Hz – 20kHz

40Hz – 20kHz

175 watts

250 watts

92dB

96dB

8 ohms

8 ohms
15"

Woofer:

8"

Midrange:

4"

4"

Tweeter:

2"

2"

16-3/4 x 10-3/4 x 12 inches
(425 x 273 x 305mm)

30-7/8 x 16-1/4 x 11-1/2 inches
(784 x 413 x 292mm)

17 lbs/7.7 kg

35 lbs/15.9 kg

Dimensions (H x W x D):
Weight (each):

*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.

Occasional refinements may
be made to existing products
without notice, but will
always meet or exceed original specifications unless
otherwise stated.

Declaration of Conformity

JBL Consumer Products
250 Crossways Park Drive, Woodbury, NY 11797
8500 Balboa Boulevard, Northridge, CA 91329
1-800-336-4JBL (4525) (USA only)
www.jbl.com

We, JBL Europe A/S
Kongevejen 194B
DK-3460 Birkerød
DENMARK
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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