JBL D38 User Manual

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

one. Speaker Placement

D38

D315

two. Speaker Connections

– +– +

– + – +

Speaker Outputs

RIGHT LEFT

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.

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.

Declaration of Conformity

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

Steen Michaelsen

JBL Europe A/S

Birkerød. DENMARK. 9/98

Specifications

A Harman International Company

D38 D315

Frequency Response (–6dB): 50Hz – 20kHz 40Hz – 20kHz

Recommended Maximum

Amplifier Power*: 175 watts 250 watts

Sensitivity @ 1 watt/1 meter:

Nominal Impedance: 8 ohms 8 ohms

Woofer: 8" 15"

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

Weight (each): 17 lbs/7.7 kg 35 lbs/15.9 kg

92dB 96dB

(425 x 273 x 305mm) (784 x 413 x 292mm)

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

1998 JBL, Incorporated.

©

JBL is a registered trademark
of JBL, Incorporated.
9/98 Part No.: D38,D315OM

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